diff --git a/doc/talks/2024-simep/collect_c14_3.R b/doc/talks/2024-simep/(archives)/collect_c14_3.R similarity index 100% rename from doc/talks/2024-simep/collect_c14_3.R rename to doc/talks/2024-simep/(archives)/collect_c14_3.R diff --git a/doc/talks/2024-simep/report_db.R b/doc/talks/2024-simep/(archives)/report_db.R similarity index 100% rename from doc/talks/2024-simep/report_db.R rename to doc/talks/2024-simep/(archives)/report_db.R diff --git a/doc/talks/2024-simep/.gitignore b/doc/talks/2024-simep/.gitignore new file mode 100644 index 0000000..075b254 --- /dev/null +++ b/doc/talks/2024-simep/.gitignore @@ -0,0 +1 @@ +/.quarto/ diff --git a/doc/talks/2024-simep/_quarto.yml b/doc/talks/2024-simep/_quarto.yml new file mode 100644 index 0000000..80943c3 --- /dev/null +++ b/doc/talks/2024-simep/_quarto.yml @@ -0,0 +1,28 @@ +project: + type: website + output-dir: pres + +website: + title: "KCC " + favicon: img/simep-logo.png + repo-url: https://github.com/quarto-dev/quarto-web + page-footer: + right: + - icon: github + href: https://github.com/quarto-dev/quarto-cli + navbar: + left: + - href: index.qmd + text: Home + - about.qmd + +format: + html: + # page-layout: full + anchor-sections: true + theme: cosmo + css: styles.css + toc: true + + + diff --git a/doc/talks/2024-simep/myproject/myproject.qmd b/doc/talks/2024-simep/myproject/myproject.qmd new file mode 100644 index 0000000..d1a6a78 --- /dev/null +++ b/doc/talks/2024-simep/myproject/myproject.qmd @@ -0,0 +1,7 @@ +--- +title: "myproject" +--- + +## Quarto + +Quarto enables you to weave together content and executable code into a finished document. To learn more about Quarto see . diff --git a/doc/talks/2024-simep/pres/img/simep-logo.png b/doc/talks/2024-simep/pres/img/simep-logo.png new file mode 100644 index 0000000..971eaeb Binary files /dev/null and b/doc/talks/2024-simep/pres/img/simep-logo.png differ diff --git a/doc/talks/2024-simep/index.html b/doc/talks/2024-simep/pres/index.html similarity index 93% rename from doc/talks/2024-simep/index.html rename to doc/talks/2024-simep/pres/index.html index 92ddc30..27edc7b 100644 --- a/doc/talks/2024-simep/index.html +++ b/doc/talks/2024-simep/pres/index.html @@ -1,22 +1,23 @@ - - - - - - - - + + + + + + + + + - Climates during the spread of farming in Mediterranean + KCC - Climates during the spread of farming in Mediterranean - - + + - + - - - - - - + + + + + + \n\t\n\n\t\n\n\t\t
Loading speaker view...
\n\n\t\t
\n\t\t
Upcoming
\n\t\t
\n\t\t\t
\n\t\t\t\t

Time Click to Reset

\n\t\t\t\t
\n\t\t\t\t\t0:00 AM\n\t\t\t\t
\n\t\t\t\t
\n\t\t\t\t\t00:00:00\n\t\t\t\t
\n\t\t\t\t
\n\n\t\t\t\t

Pacing – Time to finish current slide

\n\t\t\t\t
\n\t\t\t\t\t00:00:00\n\t\t\t\t
\n\t\t\t
\n\n\t\t\t
\n\t\t\t\t

Notes

\n\t\t\t\t
\n\t\t\t
\n\t\t
\n\t\t
\n\t\t\t\n\t\t\t\n\t\t
\n\n\t\t + + \ No newline at end of file diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/pdf-export/pdfexport.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/pdf-export/pdfexport.js new file mode 100644 index 0000000..c399fa9 --- /dev/null +++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/pdf-export/pdfexport.js @@ -0,0 +1,108 @@ +var PdfExport = ( function( _Reveal ){ + + var Reveal = _Reveal; + var setStylesheet = null; + var installAltKeyBindings = null; + + function getRevealJsPath(){ + var regex = /\b[^/]+\/reveal.css$/i; + var script = Array.from( document.querySelectorAll( 'link' ) ).find( function( e ){ + return e.attributes.href && e.attributes.href.value.search( regex ) >= 0; + }); + if( !script ){ + console.error( 'reveal.css could not be found in included elements. Did you rename this file?' ); + return ''; + } + return script.attributes.href.value.replace( regex, '' ); + } + + function setStylesheet3( pdfExport ){ + var link = document.querySelector( '#print' ); + if( !link ){ + link = document.createElement( 'link' ); + link.rel = 'stylesheet'; + link.id = 'print'; + document.querySelector( 'head' ).appendChild( link ); + } + var style = 'paper'; + if( pdfExport ){ + style = 'pdf'; + } + link.href = getRevealJsPath() + 'css/print/' + style + '.css'; + } + + function setStylesheet4( pdfExport ){ + } + + function installAltKeyBindings3(){ + } + + function installAltKeyBindings4(){ + if( isPrintingPDF() ){ + var config = Reveal.getConfig(); + var shortcut = config.pdfExportShortcut || 'E'; + window.addEventListener( 'keydown', function( e ){ + if( e.target.nodeName.toUpperCase() == 'BODY' + && ( e.key.toUpperCase() == shortcut.toUpperCase() || e.keyCode == shortcut.toUpperCase().charCodeAt( 0 ) ) ){ + e.preventDefault(); + togglePdfExport(); + return false; + } + }, true ); + } + } + + function isPrintingPDF(){ + return ( /print-pdf/gi ).test( window.location.search ); + } + + function togglePdfExport(){ + var url_doc = new URL( document.URL ); + var query_doc = new URLSearchParams( url_doc.searchParams ); + if( isPrintingPDF() ){ + query_doc.delete( 'print-pdf' ); + }else{ + query_doc.set( 'print-pdf', '' ); + } + url_doc.search = ( query_doc.toString() ? '?' + query_doc.toString() : '' ); + window.location.href = url_doc.toString(); + } + + function installKeyBindings(){ + var config = Reveal.getConfig(); + var shortcut = config.pdfExportShortcut || 'E'; + Reveal.addKeyBinding({ + keyCode: shortcut.toUpperCase().charCodeAt( 0 ), + key: shortcut.toUpperCase(), + description: 'PDF export mode' + }, togglePdfExport ); + installAltKeyBindings(); + } + + function install(){ + installKeyBindings(); + setStylesheet( isPrintingPDF() ); + } + + var Plugin = { + } + + if( Reveal && Reveal.VERSION && Reveal.VERSION.length && Reveal.VERSION[ 0 ] == '3' ){ + // reveal 3.x + setStylesheet = setStylesheet3; + installAltKeyBindings = installAltKeyBindings3; + install(); + }else{ + // must be reveal 4.x + setStylesheet = setStylesheet4; + installAltKeyBindings = installAltKeyBindings4; + Plugin.id = 'pdf-export'; + Plugin.init = function( _Reveal ){ + Reveal = _Reveal; + install(); + }; + } + + return Plugin; + +})( Reveal ); diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/pdf-export/plugin.yml b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/pdf-export/plugin.yml new file mode 100644 index 0000000..f6db9d0 --- /dev/null +++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/pdf-export/plugin.yml @@ -0,0 +1,2 @@ +name: PdfExport +script: pdfexport.js diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/line-highlight.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/line-highlight.css new file mode 100644 index 0000000..e8410fe --- /dev/null +++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/line-highlight.css @@ -0,0 +1,31 @@ +.reveal + div.sourceCode + pre + code.has-line-highlights + > span:not(.highlight-line) { + opacity: 0.4; +} + +.reveal pre.numberSource { + padding-left: 0; +} + +.reveal pre.numberSource code > span { + left: -2.1em; +} + +pre.numberSource code > span > a:first-child::before { + left: -0.7em; +} + +.reveal pre > code:not(:first-child).fragment { + position: absolute; + top: 0; + left: 0; + width: 100%; + box-sizing: border-box; +} + +.reveal div.sourceCode pre code { + min-height: 100%; +} diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/line-highlight.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/line-highlight.js new file mode 100644 index 0000000..a69ca1d --- /dev/null +++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/line-highlight.js @@ -0,0 +1,351 @@ +window.QuartoLineHighlight = function () { + function isPrintView() { + return /print-pdf/gi.test(window.location.search); + } + + const delimiters = { + step: "|", + line: ",", + lineRange: "-", + }; + + const regex = new RegExp( + "^[\\d" + Object.values(delimiters).join("") + "]+$" + ); + + function handleLinesSelector(deck, attr) { + // if we are in printview with pdfSeparateFragments: false + // then we'll also want to supress + if (regex.test(attr)) { + if (isPrintView() && deck.getConfig().pdfSeparateFragments !== true) { + return false; + } else { + return true; + } + } else { + return false; + } + } + + const kCodeLineNumbersAttr = "data-code-line-numbers"; + const kFragmentIndex = "data-fragment-index"; + + function initQuartoLineHighlight(deck) { + const divSourceCode = deck + .getRevealElement() + .querySelectorAll("div.sourceCode"); + // Process each div created by Pandoc highlighting - numbered line are already included. + divSourceCode.forEach((el) => { + if (el.hasAttribute(kCodeLineNumbersAttr)) { + const codeLineAttr = el.getAttribute(kCodeLineNumbersAttr); + el.removeAttribute(kCodeLineNumbersAttr); + if (handleLinesSelector(deck, codeLineAttr)) { + // Only process if attr is a string to select lines to highlights + // e.g "1|3,6|8-11" + const codeBlock = el.querySelectorAll("pre code"); + codeBlock.forEach((code) => { + // move attributes on code block + code.setAttribute(kCodeLineNumbersAttr, codeLineAttr); + + const scrollState = { currentBlock: code }; + + // Check if there are steps and duplicate code block accordingly + const highlightSteps = splitLineNumbers(codeLineAttr); + if (highlightSteps.length > 1) { + // If the original code block has a fragment-index, + // each clone should follow in an incremental sequence + let fragmentIndex = parseInt( + code.getAttribute(kFragmentIndex), + 10 + ); + fragmentIndex = + typeof fragmentIndex !== "number" || isNaN(fragmentIndex) + ? null + : fragmentIndex; + + let stepN = 1; + highlightSteps.slice(1).forEach( + // Generate fragments for all steps except the original block + (step) => { + var fragmentBlock = code.cloneNode(true); + fragmentBlock.setAttribute( + "data-code-line-numbers", + joinLineNumbers([step]) + ); + fragmentBlock.classList.add("fragment"); + + // Pandoc sets id on spans we need to keep unique + fragmentBlock + .querySelectorAll(":scope > span") + .forEach((span) => { + if (span.hasAttribute("id")) { + span.setAttribute( + "id", + span.getAttribute("id").concat("-" + stepN) + ); + } + }); + stepN = ++stepN; + + // Add duplicated element after existing one + code.parentNode.appendChild(fragmentBlock); + + // Each new element is highlighted based on the new attributes value + highlightCodeBlock(fragmentBlock); + + if (typeof fragmentIndex === "number") { + fragmentBlock.setAttribute(kFragmentIndex, fragmentIndex); + fragmentIndex += 1; + } else { + fragmentBlock.removeAttribute(kFragmentIndex); + } + + // Scroll highlights into view as we step through them + fragmentBlock.addEventListener( + "visible", + scrollHighlightedLineIntoView.bind( + this, + fragmentBlock, + scrollState + ) + ); + fragmentBlock.addEventListener( + "hidden", + scrollHighlightedLineIntoView.bind( + this, + fragmentBlock.previousSibling, + scrollState + ) + ); + } + ); + code.removeAttribute(kFragmentIndex); + code.setAttribute( + kCodeLineNumbersAttr, + joinLineNumbers([highlightSteps[0]]) + ); + } + + // Scroll the first highlight into view when the slide becomes visible. + const slide = + typeof code.closest === "function" + ? code.closest("section:not(.stack)") + : null; + if (slide) { + const scrollFirstHighlightIntoView = function () { + scrollHighlightedLineIntoView(code, scrollState, true); + slide.removeEventListener( + "visible", + scrollFirstHighlightIntoView + ); + }; + slide.addEventListener("visible", scrollFirstHighlightIntoView); + } + + highlightCodeBlock(code); + }); + } + } + }); + } + + function highlightCodeBlock(codeBlock) { + const highlightSteps = splitLineNumbers( + codeBlock.getAttribute(kCodeLineNumbersAttr) + ); + + if (highlightSteps.length) { + // If we have at least one step, we generate fragments + highlightSteps[0].forEach((highlight) => { + // Add expected class on 
 for reveal CSS
+        codeBlock.parentNode.classList.add("code-wrapper");
+
+        // Select lines to highlight
+        spanToHighlight = [];
+        if (typeof highlight.last === "number") {
+          spanToHighlight = [].slice.call(
+            codeBlock.querySelectorAll(
+              ":scope > span:nth-of-type(n+" +
+                highlight.first +
+                "):nth-of-type(-n+" +
+                highlight.last +
+                ")"
+            )
+          );
+        } else if (typeof highlight.first === "number") {
+          spanToHighlight = [].slice.call(
+            codeBlock.querySelectorAll(
+              ":scope > span:nth-of-type(" + highlight.first + ")"
+            )
+          );
+        }
+        if (spanToHighlight.length) {
+          // Add a class on  and  to select line to highlight
+          spanToHighlight.forEach((span) =>
+            span.classList.add("highlight-line")
+          );
+          codeBlock.classList.add("has-line-highlights");
+        }
+      });
+    }
+  }
+
+  /**
+   * Animates scrolling to the first highlighted line
+   * in the given code block.
+   */
+  function scrollHighlightedLineIntoView(block, scrollState, skipAnimation) {
+    window.cancelAnimationFrame(scrollState.animationFrameID);
+
+    // Match the scroll position of the currently visible
+    // code block
+    if (scrollState.currentBlock) {
+      block.scrollTop = scrollState.currentBlock.scrollTop;
+    }
+
+    // Remember the current code block so that we can match
+    // its scroll position when showing/hiding fragments
+    scrollState.currentBlock = block;
+
+    const highlightBounds = getHighlightedLineBounds(block);
+    let viewportHeight = block.offsetHeight;
+
+    // Subtract padding from the viewport height
+    const blockStyles = window.getComputedStyle(block);
+    viewportHeight -=
+      parseInt(blockStyles.paddingTop) + parseInt(blockStyles.paddingBottom);
+
+    // Scroll position which centers all highlights
+    const startTop = block.scrollTop;
+    let targetTop =
+      highlightBounds.top +
+      (Math.min(highlightBounds.bottom - highlightBounds.top, viewportHeight) -
+        viewportHeight) /
+        2;
+
+    // Make sure the scroll target is within bounds
+    targetTop = Math.max(
+      Math.min(targetTop, block.scrollHeight - viewportHeight),
+      0
+    );
+
+    if (skipAnimation === true || startTop === targetTop) {
+      block.scrollTop = targetTop;
+    } else {
+      // Don't attempt to scroll if there is no overflow
+      if (block.scrollHeight <= viewportHeight) return;
+
+      let time = 0;
+
+      const animate = function () {
+        time = Math.min(time + 0.02, 1);
+
+        // Update our eased scroll position
+        block.scrollTop =
+          startTop + (targetTop - startTop) * easeInOutQuart(time);
+
+        // Keep animating unless we've reached the end
+        if (time < 1) {
+          scrollState.animationFrameID = requestAnimationFrame(animate);
+        }
+      };
+
+      animate();
+    }
+  }
+
+  function getHighlightedLineBounds(block) {
+    const highlightedLines = block.querySelectorAll(".highlight-line");
+    if (highlightedLines.length === 0) {
+      return { top: 0, bottom: 0 };
+    } else {
+      const firstHighlight = highlightedLines[0];
+      const lastHighlight = highlightedLines[highlightedLines.length - 1];
+
+      return {
+        top: firstHighlight.offsetTop,
+        bottom: lastHighlight.offsetTop + lastHighlight.offsetHeight,
+      };
+    }
+  }
+
+  /**
+   * The easing function used when scrolling.
+   */
+  function easeInOutQuart(t) {
+    // easeInOutQuart
+    return t < 0.5 ? 8 * t * t * t * t : 1 - 8 * --t * t * t * t;
+  }
+
+  function splitLineNumbers(lineNumbersAttr) {
+    // remove space
+    lineNumbersAttr = lineNumbersAttr.replace("/s/g", "");
+    // seperate steps (for fragment)
+    lineNumbersAttr = lineNumbersAttr.split(delimiters.step);
+
+    // for each step, calculate first and last line, if any
+    return lineNumbersAttr.map((highlights) => {
+      // detect lines
+      const lines = highlights.split(delimiters.line);
+      return lines.map((range) => {
+        if (/^[\d-]+$/.test(range)) {
+          range = range.split(delimiters.lineRange);
+          const firstLine = parseInt(range[0], 10);
+          const lastLine = range[1] ? parseInt(range[1], 10) : undefined;
+          return {
+            first: firstLine,
+            last: lastLine,
+          };
+        } else {
+          return {};
+        }
+      });
+    });
+  }
+
+  function joinLineNumbers(splittedLineNumbers) {
+    return splittedLineNumbers
+      .map(function (highlights) {
+        return highlights
+          .map(function (highlight) {
+            // Line range
+            if (typeof highlight.last === "number") {
+              return highlight.first + delimiters.lineRange + highlight.last;
+            }
+            // Single line
+            else if (typeof highlight.first === "number") {
+              return highlight.first;
+            }
+            // All lines
+            else {
+              return "";
+            }
+          })
+          .join(delimiters.line);
+      })
+      .join(delimiters.step);
+  }
+
+  return {
+    id: "quarto-line-highlight",
+    init: function (deck) {
+      initQuartoLineHighlight(deck);
+
+      // If we're printing to PDF, scroll the code highlights of
+      // all blocks in the deck into view at once
+      deck.on("pdf-ready", function () {
+        [].slice
+          .call(
+            deck
+              .getRevealElement()
+              .querySelectorAll(
+                "pre code[data-code-line-numbers].current-fragment"
+              )
+          )
+          .forEach(function (block) {
+            scrollHighlightedLineIntoView(block, {}, true);
+          });
+      });
+    },
+  };
+};
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/plugin.yml b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/plugin.yml
new file mode 100644
index 0000000..ca20686
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-line-highlight/plugin.yml
@@ -0,0 +1,4 @@
+# adapted from https://github.com/hakimel/reveal.js/tree/master/plugin/highlight
+name: QuartoLineHighlight
+script: line-highlight.js
+stylesheet: line-highlight.css
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/footer.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/footer.css
new file mode 100644
index 0000000..390d5b3
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/footer.css
@@ -0,0 +1,110 @@
+.reveal .slide-logo {
+  display: block;
+  position: fixed;
+  bottom: 0;
+  right: 12px;
+  max-height: 2.2rem;
+  height: 100%;
+  width: auto;
+  z-index: 2;
+}
+
+.reveal .footer {
+  display: block;
+  position: fixed;
+  bottom: 18px;
+  width: 100%;
+  margin: 0 auto;
+  text-align: center;
+  font-size: 18px;
+  z-index: 2;
+}
+
+.reveal .footer > * {
+  margin-top: 0;
+  margin-bottom: 0;
+}
+
+.reveal .slide .footer {
+  display: none;
+}
+
+.reveal .slide-number {
+  bottom: 10px;
+  right: 10px;
+  font-size: 16px;
+  background-color: transparent;
+}
+
+.reveal.has-logo .slide-number {
+  bottom: initial;
+  top: 8px;
+  right: 8px;
+}
+
+.reveal .slide-number .slide-number-delimiter {
+  margin: 0;
+}
+
+.reveal .slide-menu-button {
+  left: 8px;
+  bottom: 8px;
+}
+
+.reveal .slide-chalkboard-buttons {
+  position: fixed;
+  left: 12px;
+  bottom: 8px;
+  z-index: 30;
+  font-size: 24px;
+}
+
+.reveal .slide-chalkboard-buttons.slide-menu-offset {
+  left: 54px;
+}
+
+.reveal .slide-chalkboard-buttons > span {
+  margin-right: 14px;
+  cursor: pointer;
+}
+
+@media screen and (max-width: 800px) {
+  .reveal .slide-logo {
+    max-height: 1.1rem;
+    bottom: -2px;
+    right: 10px;
+  }
+  .reveal .footer {
+    font-size: 14px;
+    bottom: 12px;
+  }
+  .reveal .slide-number {
+    font-size: 12px;
+    bottom: 7px;
+  }
+  .reveal .slide-menu-button .fas::before {
+    height: 1.3rem;
+    width: 1.3rem;
+    vertical-align: -0.125em;
+    background-size: 1.3rem 1.3rem;
+  }
+
+  .reveal .slide-chalkboard-buttons .fas::before {
+    height: 0.95rem;
+    width: 0.95rem;
+    background-size: 0.95rem 0.95rem;
+    vertical-align: -0em;
+  }
+
+  .reveal .slide-chalkboard-buttons.slide-menu-offset {
+    left: 36px;
+  }
+  .reveal .slide-chalkboard-buttons > span {
+    margin-right: 9px;
+  }
+}
+
+html.print-pdf .reveal .slide-menu-button,
+html.print-pdf .reveal .slide-chalkboard-buttons {
+  display: none;
+}
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/plugin.yml b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/plugin.yml
new file mode 100644
index 0000000..546956e
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/plugin.yml
@@ -0,0 +1,5 @@
+name: QuartoSupport
+script: support.js
+stylesheet: footer.css
+config:
+  smaller: false
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/support.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/support.js
new file mode 100644
index 0000000..b0262ee
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/quarto-support/support.js
@@ -0,0 +1,320 @@
+// catch all plugin for various quarto features
+window.QuartoSupport = function () {
+  function isPrintView() {
+    return /print-pdf/gi.test(window.location.search);
+  }
+
+  // helper for theme toggling
+  function toggleBackgroundTheme(el, onDarkBackground, onLightBackground) {
+    if (onDarkBackground) {
+      el.classList.add('has-dark-background')
+    } else {
+      el.classList.remove('has-dark-background')
+    }
+    if (onLightBackground) {
+      el.classList.add('has-light-background')
+    } else {
+      el.classList.remove('has-light-background')
+    }
+  }
+
+  // implement controlsAudo
+  function controlsAuto(deck) {
+    const config = deck.getConfig();
+    if (config.controlsAuto === true) {
+      const iframe = window.location !== window.parent.location;
+      const localhost =
+        window.location.hostname === "localhost" ||
+        window.location.hostname === "127.0.0.1";
+      deck.configure({
+        controls:
+          (iframe && !localhost) ||
+          (deck.hasVerticalSlides() && config.navigationMode !== "linear"),
+      });
+    }
+  }
+
+  // helper to provide event handlers for all links in a container
+  function handleLinkClickEvents(deck, container) {
+    Array.from(container.querySelectorAll("a")).forEach((el) => {
+      const url = el.getAttribute("href");
+      if (/^(http|www)/gi.test(url)) {
+        el.addEventListener(
+          "click",
+          (ev) => {
+            const fullscreen = !!window.document.fullscreen;
+            const dataPreviewLink = el.getAttribute("data-preview-link");
+
+            // if there is a local specifcation then use that
+            if (dataPreviewLink) {
+              if (
+                dataPreviewLink === "true" ||
+                (dataPreviewLink === "auto" && fullscreen)
+              ) {
+                ev.preventDefault();
+                deck.showPreview(url);
+                return false;
+              }
+            } else {
+              const previewLinks = !!deck.getConfig().previewLinks;
+              const previewLinksAuto =
+                deck.getConfig().previewLinksAuto === true;
+              if (previewLinks == true || (previewLinksAuto && fullscreen)) {
+                ev.preventDefault();
+                deck.showPreview(url);
+                return false;
+              }
+            }
+
+            // if the deck is in an iframe we want to open it externally
+            // (don't do this when in vscode though as it has its own
+            // handler for opening links externally that will be play)
+            const iframe = window.location !== window.parent.location;
+            if (
+              iframe &&
+              !window.location.search.includes("quartoPreviewReqId=")
+            ) {
+              ev.preventDefault();
+              ev.stopImmediatePropagation();
+              window.open(url, "_blank");
+              return false;
+            }
+
+            // if the user has set data-preview-link to "auto" we need to handle the event
+            // (because reveal will interpret "auto" as true)
+            if (dataPreviewLink === "auto") {
+              ev.preventDefault();
+              ev.stopImmediatePropagation();
+              const target =
+                el.getAttribute("target") ||
+                (ev.ctrlKey || ev.metaKey ? "_blank" : "");
+              if (target) {
+                window.open(url, target);
+              } else {
+                window.location.href = url;
+              }
+              return false;
+            }
+          },
+          false
+        );
+      }
+    });
+  }
+
+  // implement previewLinksAuto
+  function previewLinksAuto(deck) {
+    handleLinkClickEvents(deck, deck.getRevealElement());
+  }
+
+  // apply styles
+  function applyGlobalStyles(deck) {
+    if (deck.getConfig()["smaller"] === true) {
+      const revealParent = deck.getRevealElement();
+      revealParent.classList.add("smaller");
+    }
+  }
+
+  // add logo image
+  function addLogoImage(deck) {
+    const revealParent = deck.getRevealElement();
+    const logoImg = document.querySelector(".slide-logo");
+    if (logoImg) {
+      revealParent.appendChild(logoImg);
+      revealParent.classList.add("has-logo");
+    }
+  }
+
+  // tweak slide-number element
+  function tweakSlideNumber(deck) {
+    deck.on("slidechanged", function (ev) {
+      const revealParent = deck.getRevealElement();
+      const slideNumberEl = revealParent.querySelector(".slide-number");
+      const onDarkBackground = Reveal.getSlideBackground(ev.indexh, ev.indexv).classList.contains('has-dark-background');
+      const onLightBackground = Reveal.getSlideBackground(ev.indexh, ev.indexv).classList.contains('has-light-background');
+      toggleBackgroundTheme(slideNumberEl, onDarkBackground, onLightBackground);
+    })
+  }
+
+   // add footer text
+   function addFooter(deck) {
+    const revealParent = deck.getRevealElement();
+    const defaultFooterDiv = document.querySelector(".footer-default");
+    if (defaultFooterDiv) {
+      revealParent.appendChild(defaultFooterDiv);
+      handleLinkClickEvents(deck, defaultFooterDiv);
+      if (!isPrintView()) {
+        deck.on("slidechanged", function (ev) {
+          const prevSlideFooter = document.querySelector(
+            ".reveal > .footer:not(.footer-default)"
+          );
+          if (prevSlideFooter) {
+            prevSlideFooter.remove();
+          }
+          const currentSlideFooter = ev.currentSlide.querySelector(".footer");
+          const onDarkBackground = Reveal.getSlideBackground(ev.indexh, ev.indexv).classList.contains('has-dark-background')
+          const onLightBackground = Reveal.getSlideBackground(ev.indexh, ev.indexv).classList.contains('has-light-background')
+          if (currentSlideFooter) {
+            defaultFooterDiv.style.display = "none";
+            const slideFooter = currentSlideFooter.cloneNode(true);
+            handleLinkClickEvents(deck, slideFooter);
+            deck.getRevealElement().appendChild(slideFooter);
+            toggleBackgroundTheme(slideFooter, onDarkBackground, onLightBackground)
+          } else {
+            defaultFooterDiv.style.display = "block";
+            toggleBackgroundTheme(defaultFooterDiv, onDarkBackground, onLightBackground)
+          }
+        });
+      }
+    }
+  }
+
+  // add chalkboard buttons
+  function addChalkboardButtons(deck) {
+    const chalkboard = deck.getPlugin("RevealChalkboard");
+    if (chalkboard && !isPrintView()) {
+      const revealParent = deck.getRevealElement();
+      const chalkboardDiv = document.createElement("div");
+      chalkboardDiv.classList.add("slide-chalkboard-buttons");
+      if (document.querySelector(".slide-menu-button")) {
+        chalkboardDiv.classList.add("slide-menu-offset");
+      }
+      // add buttons
+      const buttons = [
+        {
+          icon: "easel2",
+          title: "Toggle Chalkboard (b)",
+          onclick: chalkboard.toggleChalkboard,
+        },
+        {
+          icon: "brush",
+          title: "Toggle Notes Canvas (c)",
+          onclick: chalkboard.toggleNotesCanvas,
+        },
+      ];
+      buttons.forEach(function (button) {
+        const span = document.createElement("span");
+        span.title = button.title;
+        const icon = document.createElement("i");
+        icon.classList.add("fas");
+        icon.classList.add("fa-" + button.icon);
+        span.appendChild(icon);
+        span.onclick = function (event) {
+          event.preventDefault();
+          button.onclick();
+        };
+        chalkboardDiv.appendChild(span);
+      });
+      revealParent.appendChild(chalkboardDiv);
+      const config = deck.getConfig();
+      if (!config.chalkboard.buttons) {
+        chalkboardDiv.classList.add("hidden");
+      }
+
+      // show and hide chalkboard buttons on slidechange
+      deck.on("slidechanged", function (ev) {
+        const config = deck.getConfig();
+        let buttons = !!config.chalkboard.buttons;
+        const slideButtons = ev.currentSlide.getAttribute(
+          "data-chalkboard-buttons"
+        );
+        if (slideButtons) {
+          if (slideButtons === "true" || slideButtons === "1") {
+            buttons = true;
+          } else if (slideButtons === "false" || slideButtons === "0") {
+            buttons = false;
+          }
+        }
+        if (buttons) {
+          chalkboardDiv.classList.remove("hidden");
+        } else {
+          chalkboardDiv.classList.add("hidden");
+        }
+      });
+    }
+  }
+
+  function handleTabbyClicks() {
+    const tabs = document.querySelectorAll(".panel-tabset-tabby > li > a");
+    for (let i = 0; i < tabs.length; i++) {
+      const tab = tabs[i];
+      tab.onclick = function (ev) {
+        ev.preventDefault();
+        ev.stopPropagation();
+        return false;
+      };
+    }
+  }
+
+  function fixupForPrint(deck) {
+    if (isPrintView()) {
+      const slides = deck.getSlides();
+      slides.forEach(function (slide) {
+        slide.removeAttribute("data-auto-animate");
+      });
+      window.document.querySelectorAll(".hljs").forEach(function (el) {
+        el.classList.remove("hljs");
+      });
+      window.document.querySelectorAll(".hljs-ln-code").forEach(function (el) {
+        el.classList.remove("hljs-ln-code");
+      });
+    }
+  }
+
+  function handleSlideChanges(deck) {
+    // dispatch for htmlwidgets
+    const fireSlideEnter = () => {
+      const event = window.document.createEvent("Event");
+      event.initEvent("slideenter", true, true);
+      window.document.dispatchEvent(event);
+    };
+
+    const fireSlideChanged = (previousSlide, currentSlide) => {
+      fireSlideEnter();
+
+      // dispatch for shiny
+      if (window.jQuery) {
+        if (previousSlide) {
+          window.jQuery(previousSlide).trigger("hidden");
+        }
+        if (currentSlide) {
+          window.jQuery(currentSlide).trigger("shown");
+        }
+      }
+    };
+
+    // fire slideEnter for tabby tab activations (for htmlwidget resize behavior)
+    document.addEventListener("tabby", fireSlideEnter, false);
+
+    deck.on("slidechanged", function (event) {
+      fireSlideChanged(event.previousSlide, event.currentSlide);
+    });
+  }
+
+  function workaroundMermaidDistance(deck) {
+    if (window.document.querySelector("pre.mermaid-js")) {
+      const slideCount = deck.getTotalSlides();
+      deck.configure({
+        mobileViewDistance: slideCount,
+        viewDistance: slideCount,
+      });
+    }
+  }
+
+  return {
+    id: "quarto-support",
+    init: function (deck) {
+      controlsAuto(deck);
+      previewLinksAuto(deck);
+      fixupForPrint(deck);
+      applyGlobalStyles(deck);
+      addLogoImage(deck);
+      tweakSlideNumber(deck);
+      addFooter(deck);
+      addChalkboardButtons(deck);
+      handleTabbyClicks();
+      handleSlideChanges(deck);
+      workaroundMermaidDistance(deck);
+    },
+  };
+};
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/README.md b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/README.md
new file mode 100644
index 0000000..7391a00
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/README.md
@@ -0,0 +1,160 @@
+# Chalkboard
+
+With this plugin you can add a chalkboard to reveal.js. The plugin provides two possibilities to include handwritten notes to your presentation:
+
+- you can make notes directly on the slides, e.g. to comment on certain aspects,
+- you can open a chalkboard or whiteboard on which you can make notes.
+
+The main use case in mind when implementing the plugin is classroom usage in which you may want to explain some course content and quickly need to make some notes.
+
+The plugin records all drawings made so that they can be play backed using the `autoSlide` feature or the `audio-slideshow` plugin.
+
+[Check out the live demo](https://rajgoel.github.io/reveal.js-demos/chalkboard-demo.html)
+
+The chalkboard effect is based on [Chalkboard](https://github.com/mmoustafa/Chalkboard) by Mohamed Moustafa.
+
+## Installation
+
+Copy the file `plugin.js` and the  `img` directory into the plugin folder of your reveal.js presentation, i.e. `plugin/chalkboard` and load the plugin as shown below.
+
+```html
+
+
+
+
+```
+
+The following stylesheet
+```html
+
+
+```
+has to be included to the `head` section of you HTML-file.
+
+
+In order to include buttons for opening and closing the notes canvas or the chalkboard you should make sure that `font-awesome` is available. The easiest way is to include
+```
+
+```
+to the ```head``` section of you HTML-file.
+
+## Usage
+
+### Mouse or touch
+- Click on the pen symbols at the bottom left to toggle the notes canvas or chalkboard
+- Click on the color picker at the left to change the color (the color picker is only visible if the notes canvas or chalkboard is active)
+- Click on the up/down arrows on the left to the switch among multiple chalkboardd (the up/down arrows are only available for the chlakboard)
+- Click the left mouse button and drag to write on notes canvas or chalkboard
+- Click the right mouse button and drag to wipe away previous drawings
+- Touch and move to write on notes canvas or chalkboard
+- Touch and hold for half a second, then move to wipe away previous drawings
+
+### Keyboard
+- Press the 'BACKSPACE' key to delete all chalkboard drawings
+- Press the 'DEL' key to clear the notes canvas or chalkboard
+- Press the 'c' key to toggle the notes canvas
+- Press the 'b' key to toggle the chalkboard
+- Press the 'd' key to download drawings
+- Press the 'x' key to cycle colors forward
+- Press the 'y' key to cycle colors backward
+
+## Playback
+
+If the `autoSlide` feature is set or if the `audio-slideshow` plugin is used, pre-recorded chalkboard drawings can be played. The slideshow plays back the user interaction with the chalkboard in the same way as it was conducted when recording the data.
+
+## Multiplexing
+
+The plugin supports multiplexing via the [`multiplex` plugin](https://github.com/reveal/multiplex) or the [`seminar` plugin](https://github.com/rajgoel/reveal.js-plugins/tree/master/seminar).
+
+## PDF-Export
+
+If the slideshow is opened in [print mode](https://revealjs.com/pdf-export/), the chalkboard drawings in the session storage (see `storage` option - print version must be opened in the same tab or window as the original slideshow) or provided in a file (see `src` option) are included in the PDF-file. Each drawing on the chalkboard is added after the slide that was shown when opening the chalkboard. Drawings on the notes canvas are not included in the PDF-file.
+
+
+## Configuration
+
+The plugin has several configuration options:
+
+- ```boardmarkerWidth```: an integer, the drawing width of the boardmarker; larger values draw thicker lines.
+- ```chalkWidth```: an integer, the drawing width of the chalk; larger values draw thicker lines.
+- ```chalkEffect```: a float in the range ```[0.0, 1.0]```, the intesity of the chalk effect on the chalk board. Full effect (default) ```1.0```, no effect ```0.0```.
+- ```storage```: Optional variable name for session storage of drawings.
+- ```src```: Optional filename for pre-recorded drawings.
+- ```readOnly```: Configuation option allowing to prevent changes to existing drawings. If set to ```true``` no changes can be made, if set to false ```false``` changes can be made, if unset or set to ```undefined``` no changes to the drawings can be made after returning to a slide or fragment for which drawings had been recorded before. In any case the recorded drawings for a slide or fragment can be cleared by pressing the 'DEL' key (i.e. by using the ```RevealChalkboard.clear()``` function).
+- ```transition```: Gives the duration (in milliseconds) of the transition for a slide change, so that the notes canvas is drawn after the transition is completed.
+- ```theme```: Can be set to either ```"chalkboard"``` or ```"whiteboard"```.
+
+The following configuration options allow to change the appearance of the notes canvas and the chalkboard. All of these options require two values, the first gives the value for the notes canvas, the second for the chalkboard.
+
+- ```background```: The first value expects a (semi-)transparent color which is used to provide visual feedback that the notes canvas is enabled, the second value expects a filename to a background image for the chalkboard.
+- ```grid```: By default whiteboard and chalkboard themes include a grid pattern on the background. This pattern can be modified by setting the color, the distance between lines, and the line width, e.g. ```{ color: 'rgb(127,127,255,0.1)', distance: 40, width: 2}```. Alternatively, the grid can be removed by setting the value to ```false```.
+- ```eraser```: An image path and radius for the eraser.
+- ```boardmarkers```: A list of boardmarkers with given color and cursor.
+- ```chalks```: A list of chalks with given color and cursor.
+- ```rememberColor```: Whether to remember the last selected color for the slide canvas or the board.
+
+All of the configurations are optional and the default values shown below are used if the options are not provided.
+
+```javascript
+Reveal.initialize({
+	// ...
+    chalkboard: {
+        boardmarkerWidth: 3,
+        chalkWidth: 7,
+        chalkEffect: 1.0,
+        storage: null,
+        src: null,
+        readOnly: undefined,
+        transition: 800,
+        theme: "chalkboard",
+        background: [ 'rgba(127,127,127,.1)' , path + 'img/blackboard.png' ],
+        grid: { color: 'rgb(50,50,10,0.5)', distance: 80, width: 2},
+        eraser: { src: path + 'img/sponge.png', radius: 20},
+        boardmarkers : [
+                { color: 'rgba(100,100,100,1)', cursor: 'url(' + path + 'img/boardmarker-black.png), auto'},
+                { color: 'rgba(30,144,255, 1)', cursor: 'url(' + path + 'img/boardmarker-blue.png), auto'},
+                { color: 'rgba(220,20,60,1)', cursor: 'url(' + path + 'img/boardmarker-red.png), auto'},
+                { color: 'rgba(50,205,50,1)', cursor: 'url(' + path + 'img/boardmarker-green.png), auto'},
+                { color: 'rgba(255,140,0,1)', cursor: 'url(' + path + 'img/boardmarker-orange.png), auto'},
+                { color: 'rgba(150,0,20150,1)', cursor: 'url(' + path + 'img/boardmarker-purple.png), auto'},
+                { color: 'rgba(255,220,0,1)', cursor: 'url(' + path + 'img/boardmarker-yellow.png), auto'}
+        ],
+        chalks: [
+                { color: 'rgba(255,255,255,0.5)', cursor: 'url(' + path + 'img/chalk-white.png), auto'},
+                { color: 'rgba(96, 154, 244, 0.5)', cursor: 'url(' + path + 'img/chalk-blue.png), auto'},
+                { color: 'rgba(237, 20, 28, 0.5)', cursor: 'url(' + path + 'img/chalk-red.png), auto'},
+                { color: 'rgba(20, 237, 28, 0.5)', cursor: 'url(' + path + 'img/chalk-green.png), auto'},
+                { color: 'rgba(220, 133, 41, 0.5)', cursor: 'url(' + path + 'img/chalk-orange.png), auto'},
+                { color: 'rgba(220,0,220,0.5)', cursor: 'url(' + path + 'img/chalk-purple.png), auto'},
+                { color: 'rgba(255,220,0,0.5)', cursor: 'url(' + path + 'img/chalk-yellow.png), auto'}
+        ]
+    },
+    customcontrols: {
+  		controls: [
+  			{ icon: '',
+  			  title: 'Toggle chalkboard (B)',
+  			  action: 'RevealChalkboard.toggleChalkboard();'
+  			},
+  			{ icon: '',
+  			  title: 'Toggle notes canvas (C)',
+  			  action: 'RevealChalkboard.toggleNotesCanvas();'
+  			}
+  		]
+    },
+    // ...
+
+});
+```
+
+
+## License
+
+MIT licensed
+
+Copyright (C) 2021 Asvin Goel
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/LICENSE.txt b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/LICENSE.txt
new file mode 100644
index 0000000..28c1c4b
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/LICENSE.txt
@@ -0,0 +1,34 @@
+Font Awesome Free License
+-------------------------
+
+Font Awesome Free is free, open source, and GPL friendly. You can use it for
+commercial projects, open source projects, or really almost whatever you want.
+Full Font Awesome Free license: https://fontawesome.com/license.
+
+# Icons: CC BY 4.0 License (https://creativecommons.org/licenses/by/4.0/)
+In the Font Awesome Free download, the CC BY 4.0 license applies to all icons
+packaged as SVG and JS file types.
+
+# Fonts: SIL OFL 1.1 License (https://scripts.sil.org/OFL)
+In the Font Awesome Free download, the SIL OLF license applies to all icons
+packaged as web and desktop font files.
+
+# Code: MIT License (https://opensource.org/licenses/MIT)
+In the Font Awesome Free download, the MIT license applies to all non-font and
+non-icon files.
+
+# Attribution
+Attribution is required by MIT, SIL OLF, and CC BY licenses. Downloaded Font
+Awesome Free files already contain embedded comments with sufficient
+attribution, so you shouldn't need to do anything additional when using these
+files normally.
+
+We've kept attribution comments terse, so we ask that you do not actively work
+to remove them from files, especially code. They're a great way for folks to 
+learn about Font Awesome.
+
+# Brand Icons
+All brand icons are trademarks of their respective owners. The use of these
+trademarks does not indicate endorsement of the trademark holder by Font
+Awesome, nor vice versa. **Please do not use brand logos for any purpose except
+to represent the company, product, or service to which they refer.**
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/all.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/all.css
new file mode 100644
index 0000000..7fec2e3
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/all.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
+.fa,.fab,.fal,.far,.fas{-moz-osx-font-smoothing:grayscale;-webkit-font-smoothing:antialiased;display:inline-block;font-style:normal;font-variant:normal;text-rendering:auto;line-height:1}.fa-lg{font-size:1.33333em;line-height:.75em;vertical-align:-.0667em}.fa-xs{font-size:.75em}.fa-sm{font-size:.875em}.fa-1x{font-size:1em}.fa-2x{font-size:2em}.fa-3x{font-size:3em}.fa-4x{font-size:4em}.fa-5x{font-size:5em}.fa-6x{font-size:6em}.fa-7x{font-size:7em}.fa-8x{font-size:8em}.fa-9x{font-size:9em}.fa-10x{font-size:10em}.fa-fw{text-align:center;width:1.25em}.fa-ul{list-style-type:none;margin-left:2.5em;padding-left:0}.fa-ul>li{position:relative}.fa-li{left:-2em;position:absolute;text-align:center;width:2em;line-height:inherit}.fa-border{border:.08em solid #eee;border-radius:.1em;padding:.2em .25em .15em}.fa-pull-left{float:left}.fa-pull-right{float:right}.fa.fa-pull-left,.fab.fa-pull-left,.fal.fa-pull-left,.far.fa-pull-left,.fas.fa-pull-left{margin-right:.3em}.fa.fa-pull-right,.fab.fa-pull-right,.fal.fa-pull-right,.far.fa-pull-right,.fas.fa-pull-right{margin-left:.3em}.fa-spin{animation:a 2s infinite linear}.fa-pulse{animation:a 1s infinite steps(8)}@keyframes a{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.fa-rotate-90{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=1)";transform:rotate(90deg)}.fa-rotate-180{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=2)";transform:rotate(180deg)}.fa-rotate-270{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=3)";transform:rotate(270deg)}.fa-flip-horizontal{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=0, mirror=1)";transform:scaleX(-1)}.fa-flip-vertical{transform:scaleY(-1)}.fa-flip-horizontal.fa-flip-vertical,.fa-flip-vertical{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=2, mirror=1)"}.fa-flip-horizontal.fa-flip-vertical{transform:scale(-1)}:root .fa-flip-horizontal,:root .fa-flip-vertical,:root .fa-rotate-90,:root .fa-rotate-180,:root 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diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/brands.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/brands.css
new file mode 100644
index 0000000..2d9e4c6
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/brands.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
+@font-face{font-family:"Font Awesome 5 Brands";font-style:normal;font-weight:normal;src:url(../webfonts/fa-brands-400.eot);src:url(../webfonts/fa-brands-400.eot?#iefix) format("embedded-opentype"),url(../webfonts/fa-brands-400.woff2) format("woff2"),url(../webfonts/fa-brands-400.woff) format("woff"),url(../webfonts/fa-brands-400.ttf) format("truetype"),url(../webfonts/fa-brands-400.svg#fontawesome) format("svg")}.fab{font-family:"Font Awesome 5 Brands"}
\ No newline at end of file
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/fontawesome.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/fontawesome.css
new file mode 100644
index 0000000..68b26ef
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/fontawesome.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
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diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/regular.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/regular.css
new file mode 100644
index 0000000..02b22fa
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/regular.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
+@font-face{font-family:"Font Awesome 5 Free";font-style:normal;font-weight:400;src:url(../webfonts/fa-regular-400.eot);src:url(../webfonts/fa-regular-400.eot?#iefix) format("embedded-opentype"),url(../webfonts/fa-regular-400.woff2) format("woff2"),url(../webfonts/fa-regular-400.woff) format("woff"),url(../webfonts/fa-regular-400.ttf) format("truetype"),url(../webfonts/fa-regular-400.svg#fontawesome) format("svg")}.far{font-family:"Font Awesome 5 Free";font-weight:400}
\ No newline at end of file
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/solid.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/solid.css
new file mode 100644
index 0000000..aed56a2
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/solid.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
+@font-face{font-family:"Font Awesome 5 Free";font-style:normal;font-weight:900;src:url(../webfonts/fa-solid-900.eot);src:url(../webfonts/fa-solid-900.eot?#iefix) format("embedded-opentype"),url(../webfonts/fa-solid-900.woff2) format("woff2"),url(../webfonts/fa-solid-900.woff) format("woff"),url(../webfonts/fa-solid-900.ttf) format("truetype"),url(../webfonts/fa-solid-900.svg#fontawesome) format("svg")}.fa,.fas{font-family:"Font Awesome 5 Free";font-weight:900}
\ No newline at end of file
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/svg-with-js.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/svg-with-js.css
new file mode 100644
index 0000000..504203d
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/svg-with-js.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
+.svg-inline--fa,svg:not(:root).svg-inline--fa{overflow:visible}.svg-inline--fa{display:inline-block;font-size:inherit;height:1em;vertical-align:-.125em}.svg-inline--fa.fa-lg{vertical-align:-.225em}.svg-inline--fa.fa-w-1{width:.0625em}.svg-inline--fa.fa-w-2{width:.125em}.svg-inline--fa.fa-w-3{width:.1875em}.svg-inline--fa.fa-w-4{width:.25em}.svg-inline--fa.fa-w-5{width:.3125em}.svg-inline--fa.fa-w-6{width:.375em}.svg-inline--fa.fa-w-7{width:.4375em}.svg-inline--fa.fa-w-8{width:.5em}.svg-inline--fa.fa-w-9{width:.5625em}.svg-inline--fa.fa-w-10{width:.625em}.svg-inline--fa.fa-w-11{width:.6875em}.svg-inline--fa.fa-w-12{width:.75em}.svg-inline--fa.fa-w-13{width:.8125em}.svg-inline--fa.fa-w-14{width:.875em}.svg-inline--fa.fa-w-15{width:.9375em}.svg-inline--fa.fa-w-16{width:1em}.svg-inline--fa.fa-w-17{width:1.0625em}.svg-inline--fa.fa-w-18{width:1.125em}.svg-inline--fa.fa-w-19{width:1.1875em}.svg-inline--fa.fa-w-20{width:1.25em}.svg-inline--fa.fa-pull-left{margin-right:.3em;width:auto}.svg-inline--fa.fa-pull-right{margin-left:.3em;width:auto}.svg-inline--fa.fa-border{height:1.5em}.svg-inline--fa.fa-li{width:2em}.svg-inline--fa.fa-fw{width:1.25em}.fa-layers svg.svg-inline--fa{bottom:0;left:0;margin:auto;position:absolute;right:0;top:0}.fa-layers{display:inline-block;height:1em;position:relative;text-align:center;vertical-align:-.125em;width:1em}.fa-layers svg.svg-inline--fa{transform-origin:center center}.fa-layers-counter,.fa-layers-text{display:inline-block;position:absolute;text-align:center}.fa-layers-text{left:50%;top:50%;transform:translate(-50%,-50%);transform-origin:center center}.fa-layers-counter{background-color:#ff253a;border-radius:1em;box-sizing:border-box;color:#fff;height:1.5em;line-height:1;max-width:5em;min-width:1.5em;overflow:hidden;padding:.25em;right:0;text-overflow:ellipsis;top:0;transform:scale(.25);transform-origin:top right}.fa-layers-bottom-right{bottom:0;right:0;top:auto;transform:scale(.25);transform-origin:bottom right}.fa-layers-bottom-left{bottom:0;left:0;right:auto;top:auto;transform:scale(.25);transform-origin:bottom left}.fa-layers-top-right{right:0;top:0;transform:scale(.25);transform-origin:top right}.fa-layers-top-left{left:0;right:auto;top:0;transform:scale(.25);transform-origin:top left}.fa-lg{font-size:1.33333em;line-height:.75em;vertical-align:-.0667em}.fa-xs{font-size:.75em}.fa-sm{font-size:.875em}.fa-1x{font-size:1em}.fa-2x{font-size:2em}.fa-3x{font-size:3em}.fa-4x{font-size:4em}.fa-5x{font-size:5em}.fa-6x{font-size:6em}.fa-7x{font-size:7em}.fa-8x{font-size:8em}.fa-9x{font-size:9em}.fa-10x{font-size:10em}.fa-fw{text-align:center;width:1.25em}.fa-ul{list-style-type:none;margin-left:2.5em;padding-left:0}.fa-ul>li{position:relative}.fa-li{left:-2em;position:absolute;text-align:center;width:2em;line-height:inherit}.fa-border{border:.08em solid #eee;border-radius:.1em;padding:.2em .25em .15em}.fa-pull-left{float:left}.fa-pull-right{float:right}.fa.fa-pull-left,.fab.fa-pull-left,.fal.fa-pull-left,.far.fa-pull-left,.fas.fa-pull-left{margin-right:.3em}.fa.fa-pull-right,.fab.fa-pull-right,.fal.fa-pull-right,.far.fa-pull-right,.fas.fa-pull-right{margin-left:.3em}.fa-spin{animation:a 2s infinite linear}.fa-pulse{animation:a 1s infinite steps(8)}@keyframes a{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.fa-rotate-90{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=1)";transform:rotate(90deg)}.fa-rotate-180{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=2)";transform:rotate(180deg)}.fa-rotate-270{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=3)";transform:rotate(270deg)}.fa-flip-horizontal{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=0, mirror=1)";transform:scaleX(-1)}.fa-flip-vertical{transform:scaleY(-1)}.fa-flip-horizontal.fa-flip-vertical,.fa-flip-vertical{-ms-filter:"progid:DXImageTransform.Microsoft.BasicImage(rotation=2, mirror=1)"}.fa-flip-horizontal.fa-flip-vertical{transform:scale(-1)}:root .fa-flip-horizontal,:root .fa-flip-vertical,:root .fa-rotate-90,:root .fa-rotate-180,:root .fa-rotate-270{-webkit-filter:none;filter:none}.fa-stack{display:inline-block;height:2em;position:relative;width:2em}.fa-stack-1x,.fa-stack-2x{bottom:0;left:0;margin:auto;position:absolute;right:0;top:0}.svg-inline--fa.fa-stack-1x{height:1em;width:1em}.svg-inline--fa.fa-stack-2x{height:2em;width:2em}.fa-inverse{color:#fff}.sr-only{border:0;clip:rect(0,0,0,0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}.sr-only-focusable:active,.sr-only-focusable:focus{clip:auto;height:auto;margin:0;overflow:visible;position:static;width:auto}
\ No newline at end of file
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/v4-shims.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/v4-shims.css
new file mode 100644
index 0000000..b10f655
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/v4-shims.css
@@ -0,0 +1,2170 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
+.fa.fa-glass:before {
+  content: "\f000"; }
+
+.fa.fa-meetup {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-star-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-star-o:before {
+  content: "\f005"; }
+
+.fa.fa-remove:before {
+  content: "\f00d"; }
+
+.fa.fa-close:before {
+  content: "\f00d"; }
+
+.fa.fa-gear:before {
+  content: "\f013"; }
+
+.fa.fa-trash-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-trash-o:before {
+  content: "\f2ed"; }
+
+.fa.fa-file-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-file-o:before {
+  content: "\f15b"; }
+
+.fa.fa-clock-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-clock-o:before {
+  content: "\f017"; }
+
+.fa.fa-arrow-circle-o-down {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-arrow-circle-o-down:before {
+  content: "\f358"; }
+
+.fa.fa-arrow-circle-o-up {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-arrow-circle-o-up:before {
+  content: "\f35b"; }
+
+.fa.fa-play-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-play-circle-o:before {
+  content: "\f144"; }
+
+.fa.fa-repeat:before {
+  content: "\f01e"; }
+
+.fa.fa-rotate-right:before {
+  content: "\f01e"; }
+
+.fa.fa-refresh:before {
+  content: "\f021"; }
+
+.fa.fa-list-alt {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-dedent:before {
+  content: "\f03b"; }
+
+.fa.fa-video-camera:before {
+  content: "\f03d"; }
+
+.fa.fa-picture-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-picture-o:before {
+  content: "\f03e"; }
+
+.fa.fa-photo {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-photo:before {
+  content: "\f03e"; }
+
+.fa.fa-image {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-image:before {
+  content: "\f03e"; }
+
+.fa.fa-pencil:before {
+  content: "\f303"; }
+
+.fa.fa-map-marker:before {
+  content: "\f3c5"; }
+
+.fa.fa-pencil-square-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-pencil-square-o:before {
+  content: "\f044"; }
+
+.fa.fa-share-square-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-share-square-o:before {
+  content: "\f14d"; }
+
+.fa.fa-check-square-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-check-square-o:before {
+  content: "\f14a"; }
+
+.fa.fa-arrows:before {
+  content: "\f0b2"; }
+
+.fa.fa-times-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-times-circle-o:before {
+  content: "\f057"; }
+
+.fa.fa-check-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-check-circle-o:before {
+  content: "\f058"; }
+
+.fa.fa-mail-forward:before {
+  content: "\f064"; }
+
+.fa.fa-eye {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-eye-slash {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-warning:before {
+  content: "\f071"; }
+
+.fa.fa-calendar:before {
+  content: "\f073"; }
+
+.fa.fa-arrows-v:before {
+  content: "\f338"; }
+
+.fa.fa-arrows-h:before {
+  content: "\f337"; }
+
+.fa.fa-bar-chart {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-bar-chart:before {
+  content: "\f080"; }
+
+.fa.fa-bar-chart-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-bar-chart-o:before {
+  content: "\f080"; }
+
+.fa.fa-twitter-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-facebook-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-gears:before {
+  content: "\f085"; }
+
+.fa.fa-thumbs-o-up {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-thumbs-o-up:before {
+  content: "\f164"; }
+
+.fa.fa-thumbs-o-down {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-thumbs-o-down:before {
+  content: "\f165"; }
+
+.fa.fa-heart-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-heart-o:before {
+  content: "\f004"; }
+
+.fa.fa-sign-out:before {
+  content: "\f2f5"; }
+
+.fa.fa-linkedin-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-linkedin-square:before {
+  content: "\f08c"; }
+
+.fa.fa-thumb-tack:before {
+  content: "\f08d"; }
+
+.fa.fa-external-link:before {
+  content: "\f35d"; }
+
+.fa.fa-sign-in:before {
+  content: "\f2f6"; }
+
+.fa.fa-github-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-lemon-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-lemon-o:before {
+  content: "\f094"; }
+
+.fa.fa-square-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-square-o:before {
+  content: "\f0c8"; }
+
+.fa.fa-bookmark-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-bookmark-o:before {
+  content: "\f02e"; }
+
+.fa.fa-twitter {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-facebook {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-facebook:before {
+  content: "\f39e"; }
+
+.fa.fa-facebook-f {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-facebook-f:before {
+  content: "\f39e"; }
+
+.fa.fa-github {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-credit-card {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-feed:before {
+  content: "\f09e"; }
+
+.fa.fa-hdd-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-hdd-o:before {
+  content: "\f0a0"; }
+
+.fa.fa-hand-o-right {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-hand-o-right:before {
+  content: "\f0a4"; }
+
+.fa.fa-hand-o-left {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-hand-o-left:before {
+  content: "\f0a5"; }
+
+.fa.fa-hand-o-up {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-hand-o-up:before {
+  content: "\f0a6"; }
+
+.fa.fa-hand-o-down {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-hand-o-down:before {
+  content: "\f0a7"; }
+
+.fa.fa-arrows-alt:before {
+  content: "\f31e"; }
+
+.fa.fa-group:before {
+  content: "\f0c0"; }
+
+.fa.fa-chain:before {
+  content: "\f0c1"; }
+
+.fa.fa-scissors:before {
+  content: "\f0c4"; }
+
+.fa.fa-files-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-files-o:before {
+  content: "\f0c5"; }
+
+.fa.fa-floppy-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-floppy-o:before {
+  content: "\f0c7"; }
+
+.fa.fa-navicon:before {
+  content: "\f0c9"; }
+
+.fa.fa-reorder:before {
+  content: "\f0c9"; }
+
+.fa.fa-pinterest {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-pinterest-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-google-plus-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-google-plus {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-google-plus:before {
+  content: "\f0d5"; }
+
+.fa.fa-money {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-money:before {
+  content: "\f3d1"; }
+
+.fa.fa-unsorted:before {
+  content: "\f0dc"; }
+
+.fa.fa-sort-desc:before {
+  content: "\f0dd"; }
+
+.fa.fa-sort-asc:before {
+  content: "\f0de"; }
+
+.fa.fa-linkedin {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-linkedin:before {
+  content: "\f0e1"; }
+
+.fa.fa-rotate-left:before {
+  content: "\f0e2"; }
+
+.fa.fa-legal:before {
+  content: "\f0e3"; }
+
+.fa.fa-tachometer:before {
+  content: "\f3fd"; }
+
+.fa.fa-dashboard:before {
+  content: "\f3fd"; }
+
+.fa.fa-comment-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-comment-o:before {
+  content: "\f075"; }
+
+.fa.fa-comments-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-comments-o:before {
+  content: "\f086"; }
+
+.fa.fa-flash:before {
+  content: "\f0e7"; }
+
+.fa.fa-clipboard {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-paste {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-paste:before {
+  content: "\f328"; }
+
+.fa.fa-lightbulb-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-lightbulb-o:before {
+  content: "\f0eb"; }
+
+.fa.fa-exchange:before {
+  content: "\f362"; }
+
+.fa.fa-cloud-download:before {
+  content: "\f381"; }
+
+.fa.fa-cloud-upload:before {
+  content: "\f382"; }
+
+.fa.fa-bell-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-bell-o:before {
+  content: "\f0f3"; }
+
+.fa.fa-cutlery:before {
+  content: "\f2e7"; }
+
+.fa.fa-file-text-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-file-text-o:before {
+  content: "\f15c"; }
+
+.fa.fa-building-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-building-o:before {
+  content: "\f1ad"; }
+
+.fa.fa-hospital-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-hospital-o:before {
+  content: "\f0f8"; }
+
+.fa.fa-tablet:before {
+  content: "\f3fa"; }
+
+.fa.fa-mobile:before {
+  content: "\f3cd"; }
+
+.fa.fa-mobile-phone:before {
+  content: "\f3cd"; }
+
+.fa.fa-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-circle-o:before {
+  content: "\f111"; }
+
+.fa.fa-mail-reply:before {
+  content: "\f3e5"; }
+
+.fa.fa-github-alt {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-folder-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-folder-o:before {
+  content: "\f07b"; }
+
+.fa.fa-folder-open-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-folder-open-o:before {
+  content: "\f07c"; }
+
+.fa.fa-smile-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-smile-o:before {
+  content: "\f118"; }
+
+.fa.fa-frown-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-frown-o:before {
+  content: "\f119"; }
+
+.fa.fa-meh-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-meh-o:before {
+  content: "\f11a"; }
+
+.fa.fa-keyboard-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-keyboard-o:before {
+  content: "\f11c"; }
+
+.fa.fa-flag-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-flag-o:before {
+  content: "\f024"; }
+
+.fa.fa-mail-reply-all:before {
+  content: "\f122"; }
+
+.fa.fa-star-half-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-star-half-o:before {
+  content: "\f089"; }
+
+.fa.fa-star-half-empty {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-star-half-empty:before {
+  content: "\f089"; }
+
+.fa.fa-star-half-full {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-star-half-full:before {
+  content: "\f089"; }
+
+.fa.fa-code-fork:before {
+  content: "\f126"; }
+
+.fa.fa-chain-broken:before {
+  content: "\f127"; }
+
+.fa.fa-shield:before {
+  content: "\f3ed"; }
+
+.fa.fa-calendar-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-calendar-o:before {
+  content: "\f133"; }
+
+.fa.fa-maxcdn {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-html5 {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-css3 {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-ticket:before {
+  content: "\f3ff"; }
+
+.fa.fa-minus-square-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-minus-square-o:before {
+  content: "\f146"; }
+
+.fa.fa-level-up:before {
+  content: "\f3bf"; }
+
+.fa.fa-level-down:before {
+  content: "\f3be"; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-shirtsinbulk {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-skyatlas {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
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+  content: "\f3a5"; }
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+  content: "\f224"; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  content: "\f09a"; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  content: "\f236"; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  content: "\f23b"; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  content: "\f240"; }
+
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+  content: "\f240"; }
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+  content: "\f241"; }
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+  content: "\f242"; }
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+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  content: "\f254"; }
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+  content: "\f253"; }
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+  font-weight: 400; }
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+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  font-weight: 400; }
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+  content: "\f256"; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  content: "\f257"; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
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+  content: "\f258"; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
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+  content: "\f259"; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  content: "\f25a"; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  content: "\f25b"; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-chrome {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-opera {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-internet-explorer {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  content: "\f26c"; }
+
+.fa.fa-contao {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
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+  content: "\f271"; }
+
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-calendar-minus-o:before {
+  content: "\f272"; }
+
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-calendar-times-o:before {
+  content: "\f273"; }
+
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-calendar-check-o:before {
+  content: "\f274"; }
+
+.fa.fa-map-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-map-o:before {
+  content: "\f279"; }
+
+.fa.fa-commenting {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-commenting:before {
+  content: "\f4ad"; }
+
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
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+  content: "\f4ad"; }
+
+.fa.fa-houzz {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
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+  content: "\f27d"; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-fonticons {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-reddit-alien {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-edge {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-credit-card-alt:before {
+  content: "\f09d"; }
+
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+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-modx {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-fort-awesome {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-usb {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-product-hunt {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-mixcloud {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-scribd {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-pause-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-pause-circle-o:before {
+  content: "\f28b"; }
+
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+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-stop-circle-o:before {
+  content: "\f28d"; }
+
+.fa.fa-bluetooth {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-bluetooth-b {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-gitlab {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-wpbeginner {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-wpforms {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-envira {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-wheelchair-alt {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-wheelchair-alt:before {
+  content: "\f368"; }
+
+.fa.fa-question-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-question-circle-o:before {
+  content: "\f059"; }
+
+.fa.fa-volume-control-phone:before {
+  content: "\f2a0"; }
+
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+  content: "\f2a3"; }
+
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+  content: "\f2a4"; }
+
+.fa.fa-hard-of-hearing:before {
+  content: "\f2a4"; }
+
+.fa.fa-glide {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-glide-g {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-signing:before {
+  content: "\f2a7"; }
+
+.fa.fa-viadeo {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-viadeo-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-snapchat {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-snapchat-ghost {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-snapchat-square {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-pied-piper {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-first-order {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-yoast {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-themeisle {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-google-plus-official {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-google-plus-official:before {
+  content: "\f2b3"; }
+
+.fa.fa-google-plus-circle {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-google-plus-circle:before {
+  content: "\f2b3"; }
+
+.fa.fa-font-awesome {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-fa {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-fa:before {
+  content: "\f2b4"; }
+
+.fa.fa-handshake-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-handshake-o:before {
+  content: "\f2b5"; }
+
+.fa.fa-envelope-open-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-envelope-open-o:before {
+  content: "\f2b6"; }
+
+.fa.fa-linode {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-address-book-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-address-book-o:before {
+  content: "\f2b9"; }
+
+.fa.fa-vcard:before {
+  content: "\f2bb"; }
+
+.fa.fa-address-card-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-address-card-o:before {
+  content: "\f2bb"; }
+
+.fa.fa-vcard-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-vcard-o:before {
+  content: "\f2bb"; }
+
+.fa.fa-user-circle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-user-circle-o:before {
+  content: "\f2bd"; }
+
+.fa.fa-user-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-user-o:before {
+  content: "\f007"; }
+
+.fa.fa-id-badge {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-drivers-license:before {
+  content: "\f2c2"; }
+
+.fa.fa-id-card-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-id-card-o:before {
+  content: "\f2c2"; }
+
+.fa.fa-drivers-license-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-drivers-license-o:before {
+  content: "\f2c2"; }
+
+.fa.fa-quora {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-free-code-camp {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-telegram {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-thermometer-4:before {
+  content: "\f2c7"; }
+
+.fa.fa-thermometer:before {
+  content: "\f2c7"; }
+
+.fa.fa-thermometer-3:before {
+  content: "\f2c8"; }
+
+.fa.fa-thermometer-2:before {
+  content: "\f2c9"; }
+
+.fa.fa-thermometer-1:before {
+  content: "\f2ca"; }
+
+.fa.fa-thermometer-0:before {
+  content: "\f2cb"; }
+
+.fa.fa-bathtub:before {
+  content: "\f2cd"; }
+
+.fa.fa-s15:before {
+  content: "\f2cd"; }
+
+.fa.fa-window-maximize {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-window-restore {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-times-rectangle:before {
+  content: "\f410"; }
+
+.fa.fa-window-close-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-window-close-o:before {
+  content: "\f410"; }
+
+.fa.fa-times-rectangle-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-times-rectangle-o:before {
+  content: "\f410"; }
+
+.fa.fa-bandcamp {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-grav {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-etsy {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-imdb {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-ravelry {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-eercast {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-eercast:before {
+  content: "\f2da"; }
+
+.fa.fa-snowflake-o {
+  font-family: 'Font Awesome 5 Free';
+  font-weight: 400; }
+
+.fa.fa-snowflake-o:before {
+  content: "\f2dc"; }
+
+.fa.fa-superpowers {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-wpexplorer {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
+
+.fa.fa-spotify {
+  font-family: 'Font Awesome 5 Brands';
+  font-weight: 400; }
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/v4-shims.min.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/v4-shims.min.css
new file mode 100644
index 0000000..a47c8e2
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/font-awesome/css/v4-shims.min.css
@@ -0,0 +1,5 @@
+/*!
+ * Font Awesome Free 5.1.0 by @fontawesome - https://fontawesome.com
+ * License - https://fontawesome.com/license (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
+ */
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diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/plugin.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/plugin.js
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--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/plugin.js
@@ -0,0 +1,1985 @@
+/*****************************************************************
+ ** Author: Asvin Goel, goel@telematique.eu
+ **
+ ** A plugin for reveal.js adding a chalkboard.
+ **
+ ** Version: 2.1.0
+ **
+ ** License: MIT license (see LICENSE.md)
+ **
+ ** Credits:
+ ** Chalkboard effect by Mohamed Moustafa https://github.com/mmoustafa/Chalkboard
+ ** Multi color support initially added by Kurt Rinnert https://github.com/rinnert
+ ** Compatibility with reveal.js v4 by Hakim El Hattab https://github.com/hakimel
+ ******************************************************************/
+
+window.RevealChalkboard = window.RevealChalkboard || {
+	id: 'RevealChalkboard',
+	init: function ( deck ) {
+		initChalkboard( deck );
+	},
+	configure: function ( config ) {
+		configure( config );
+	},
+	toggleNotesCanvas: function () {
+		toggleNotesCanvas();
+	},
+	toggleChalkboard: function () {
+		toggleChalkboard();
+	},
+	colorIndex: function () {
+		colorIndex();
+	},
+	colorNext: function () {
+		colorNext();
+	},
+	colorPrev: function () {
+		colorPrev();
+	},
+	clear: function () {
+		clear();
+	},
+	reset: function () {
+		reset();
+	},
+	resetAll: function () {
+		resetAll();
+	},
+	updateStorage: function () {
+		updateStorage();
+	},
+	getData: function () {
+		return getData();
+	},
+	download: function () {
+		download();
+	},
+};
+
+function scriptPath() {
+	// obtain plugin path from the script element
+	var src;
+	if ( document.currentScript ) {
+		src = document.currentScript.src;
+	} else {
+		var sel = document.querySelector( 'script[src$="/chalkboard/plugin.js"]' )
+		if ( sel ) {
+			src = sel.src;
+		}
+	}
+	var path = ( src === undefined ) ? "" : src.slice( 0, src.lastIndexOf( "/" ) + 1 );
+//console.log("Path: " + path);
+	return path;
+}
+var path = scriptPath();
+
+const initChalkboard = function ( Reveal ) {
+//console.warn(path);
+	/* Feature detection for passive event handling*/
+	var passiveSupported = false;
+
+	try {
+		window.addEventListener( 'test', null, Object.defineProperty( {}, 'passive', {
+			get: function () {
+				passiveSupported = true;
+			}
+		} ) );
+	} catch ( err ) {}
+
+
+/*****************************************************************
+ ** Configuration
+ ******************************************************************/
+	var background, pen, draw, color;
+	var grid = false;
+	var boardmarkerWidth = 3;
+	var chalkWidth = 7;
+	var chalkEffect = 1.0;
+	var rememberColor = [ true, false ];
+	var eraser = {
+		src: path + 'img/sponge.png',
+		radius: 20
+	};
+	var boardmarkers = [ {
+			color: 'rgba(100,100,100,1)',
+			cursor: 'url(' + path + 'img/boardmarker-black.png), auto'
+		},
+		{
+			color: 'rgba(30,144,255, 1)',
+			cursor: 'url(' + path + 'img/boardmarker-blue.png), auto'
+		},
+		{
+			color: 'rgba(220,20,60,1)',
+			cursor: 'url(' + path + 'img/boardmarker-red.png), auto'
+		},
+		{
+			color: 'rgba(50,205,50,1)',
+			cursor: 'url(' + path + 'img/boardmarker-green.png), auto'
+		},
+		{
+			color: 'rgba(255,140,0,1)',
+			cursor: 'url(' + path + 'img/boardmarker-orange.png), auto'
+		},
+		{
+			color: 'rgba(150,0,20150,1)',
+			cursor: 'url(' + path + 'img/boardmarker-purple.png), auto'
+		},
+		{
+			color: 'rgba(255,220,0,1)',
+			cursor: 'url(' + path + 'img/boardmarker-yellow.png), auto'
+		}
+	];
+	var chalks = [ {
+			color: 'rgba(255,255,255,0.5)',
+			cursor: 'url(' + path + 'img/chalk-white.png), auto'
+		},
+		{
+			color: 'rgba(96, 154, 244, 0.5)',
+			cursor: 'url(' + path + 'img/chalk-blue.png), auto'
+		},
+		{
+			color: 'rgba(237, 20, 28, 0.5)',
+			cursor: 'url(' + path + 'img/chalk-red.png), auto'
+		},
+		{
+			color: 'rgba(20, 237, 28, 0.5)',
+			cursor: 'url(' + path + 'img/chalk-green.png), auto'
+		},
+		{
+			color: 'rgba(220, 133, 41, 0.5)',
+			cursor: 'url(' + path + 'img/chalk-orange.png), auto'
+		},
+		{
+			color: 'rgba(220,0,220,0.5)',
+			cursor: 'url(' + path + 'img/chalk-purple.png), auto'
+		},
+		{
+			color: 'rgba(255,220,0,0.5)',
+			cursor: 'url(' + path + 'img/chalk-yellow.png), auto'
+		}
+	];
+	var keyBindings = {
+		toggleNotesCanvas: {
+			keyCode: 67,
+			key: 'C',
+			description: 'Toggle notes canvas'
+		},
+		toggleChalkboard: {
+			keyCode: 66,
+			key: 'B',
+			description: 'Toggle chalkboard'
+		},
+		clear: {
+			keyCode: 46,
+			key: 'DEL',
+			description: 'Clear drawings on slide'
+		},
+/*
+		reset: {
+			keyCode: 173,
+			key: '-',
+			description: 'Reset drawings on slide'
+		},
+*/
+		resetAll: {
+			keyCode: 8,
+			key: 'BACKSPACE',
+			description: 'Reset all drawings'
+		},
+		colorNext: {
+			keyCode: 88,
+			key: 'X',
+			description: 'Next color'
+		},
+		colorPrev: {
+			keyCode: 89,
+			key: 'Y',
+			description: 'Previous color'
+		},
+		download: {
+			keyCode: 68,
+			key: 'D',
+			description: 'Download drawings'
+		}
+	};
+
+
+	var theme = 'chalkboard';
+	var color = [ 0, 0 ];
+	var toggleChalkboardButton = false;
+	var toggleNotesButton = false;
+	var colorButtons = true;
+	var boardHandle = true;
+	var transition = 800;
+
+	var readOnly = false;
+	var messageType = 'broadcast';
+
+	var config = configure( Reveal.getConfig().chalkboard || {} );
+	if ( config.keyBindings ) {
+		for ( var key in config.keyBindings ) {
+			keyBindings[ key ] = config.keyBindings[ key ];
+		};
+	}
+
+	function configure( config ) {
+
+		if ( config.boardmarkerWidth || config.penWidth ) boardmarkerWidth = config.boardmarkerWidth || config.penWidth;
+		if ( config.chalkWidth ) chalkWidth = config.chalkWidth;
+		if ( config.chalkEffect ) chalkEffect = config.chalkEffect;
+		if ( config.rememberColor ) rememberColor = config.rememberColor;
+		if ( config.eraser ) eraser = config.eraser;
+		if ( config.boardmarkers ) boardmarkers = config.boardmarkers;
+		if ( config.chalks ) chalks = config.chalks;
+
+		if ( config.theme ) theme = config.theme;
+		switch ( theme ) {
+		case 'whiteboard':
+			background = [ 'rgba(127,127,127,.1)', path + 'img/whiteboard.png' ];
+			draw = [ drawWithBoardmarker, drawWithBoardmarker ];
+			pens = [ boardmarkers, boardmarkers ];
+			grid = {
+				color: 'rgb(127,127,255,0.1)',
+				distance: 40,
+				width: 2
+			};
+			break;
+		case 'chalkboard':
+		default:
+			background = [ 'rgba(127,127,127,.1)', path + 'img/blackboard.png' ];
+			draw = [ drawWithBoardmarker, drawWithChalk ];
+			pens = [ boardmarkers, chalks ];
+			grid = {
+				color: 'rgb(50,50,10,0.5)',
+				distance: 80,
+				width: 2
+			};
+		}
+
+		if ( config.background ) background = config.background;
+		if ( config.grid != undefined ) grid = config.grid;
+
+		if ( config.toggleChalkboardButton != undefined ) toggleChalkboardButton = config.toggleChalkboardButton;
+		if ( config.toggleNotesButton != undefined ) toggleNotesButton = config.toggleNotesButton;
+		if ( config.colorButtons != undefined ) colorButtons = config.colorButtons;
+		if ( config.boardHandle != undefined ) boardHandle = config.boardHandle;
+		if ( config.transition ) transition = config.transition;
+
+		if ( config.readOnly != undefined ) readOnly = config.readOnly;
+		if ( config.messageType ) messageType = config.messageType;
+
+		if ( drawingCanvas && ( config.theme || config.background || config.grid ) ) {
+			var canvas = document.getElementById( drawingCanvas[ 1 ].id );
+			canvas.style.background = 'url("' + background[ 1 ] + '") repeat';
+			clearCanvas( 1 );
+			drawGrid();
+		}
+
+		return config;
+	}
+/*****************************************************************
+ ** Setup
+ ******************************************************************/
+
+	function whenReady( callback ) {
+		// wait for markdown to be parsed and code to be highlighted
+		if ( !document.querySelector( 'section[data-markdown]:not([data-markdown-parsed])' ) 
+		     && !document.querySelector( 'code[data-line-numbers*="|"]') 	
+		) {
+			callback();
+		} else {
+			console.log( "Wait for markdown to be parsed and code to be highlighted" );
+			setTimeout( whenReady, 500, callback )
+		}
+	}
+
+	function whenLoaded( callback ) {
+		// wait for drawings to be loaded and markdown to be parsed
+		if ( loaded !== null ) {
+			callback();
+		} else {
+			console.log( "Wait for drawings to be loaded" );
+			setTimeout( whenLoaded, 500, callback )
+		}
+	}
+
+	if ( toggleChalkboardButton ) {
+console.warn( "toggleChalkboardButton is deprecated, use customcontrols plugin instead!" );
+//console.log("toggleChalkboardButton")
+		var button = document.createElement( 'div' );
+		button.className = "chalkboard-button";
+		button.id = "toggle-chalkboard";
+		button.style.visibility = "visible";
+		button.style.position = "absolute";
+		button.style.zIndex = 30;
+		button.style.fontSize = "24px";
+
+		button.style.left = toggleChalkboardButton.left || "30px";
+		button.style.bottom = toggleChalkboardButton.bottom || "30px";
+		button.style.top = toggleChalkboardButton.top || "auto";
+		button.style.right = toggleChalkboardButton.right || "auto";
+
+		button.innerHTML = ''
+		document.querySelector( ".reveal" ).appendChild( button );
+	}
+	if ( toggleNotesButton ) {
+console.warn( "toggleNotesButton is deprecated, use customcontrols plugin instead!" );
+//console.log("toggleNotesButton")
+		var button = document.createElement( 'div' );
+		button.className = "chalkboard-button";
+		button.id = "toggle-notes";
+		button.style.position = "absolute";
+		button.style.zIndex = 30;
+		button.style.fontSize = "24px";
+
+		button.style.left = toggleNotesButton.left || "70px";
+		button.style.bottom = toggleNotesButton.bottom || "30px";
+		button.style.top = toggleNotesButton.top || "auto";
+		button.style.right = toggleNotesButton.right || "auto";
+
+		button.innerHTML = ''
+		document.querySelector( ".reveal" ).appendChild( button );
+	}
+
+	var drawingCanvas = [ {
+		id: 'notescanvas'
+	}, {
+		id: 'chalkboard'
+	} ];
+	setupDrawingCanvas( 0 );
+	setupDrawingCanvas( 1 );
+
+	var mode = 0; // 0: notes canvas, 1: chalkboard
+	var board = 0; // board index (only for chalkboard)
+
+	var mouseX = 0;
+	var mouseY = 0;
+	var lastX = null;
+	var lastY = null;
+
+	var drawing = false;
+	var erasing = false;
+
+	var slideStart = Date.now();
+	var slideIndices = {
+		h: 0,
+		v: 0
+	};
+
+	var timeouts = [
+		[],
+		[]
+	];
+	var touchTimeout = null;
+	var slidechangeTimeout = null;
+	var updateStorageTimeout = null;
+	var playback = false;
+
+	function createPalette( colors, length ) {
+		if ( length === true || length > colors.length ) {
+			length = colors.length;
+		}
+		var palette = document.createElement( 'div' );
+		palette.classList.add( 'palette' );
+		var list = document.createElement( 'ul' );
+		// color pickers
+		for ( var i = 0; i < length; i++ ) {
+			var colorButton = document.createElement( 'li' );
+			colorButton.setAttribute( 'data-color', i );
+			colorButton.innerHTML = '';
+			colorButton.style.color = colors[ i ].color;
+			colorButton.addEventListener( 'click', function ( e ) {
+				var element = e.target;
+				while ( !element.hasAttribute( 'data-color' ) ) {
+					element = element.parentElement;
+				}
+				colorIndex( parseInt( element.getAttribute( 'data-color' ) ) );
+			} );
+			colorButton.addEventListener( 'touchstart', function ( e ) {
+				var element = e.target;
+				while ( !element.hasAttribute( 'data-color' ) ) {
+					element = element.parentElement;
+				}
+				colorIndex( parseInt( element.getAttribute( 'data-color' ) ) );
+			} );
+			list.appendChild( colorButton );
+		}
+		palette.appendChild( list );
+		return palette;
+	};
+
+	function switchBoard( boardIdx ) {
+		selectBoard( boardIdx, true );
+		// broadcast
+		var message = new CustomEvent( messageType );
+			message.content = {
+			sender: 'chalkboard-plugin',
+			type: 'selectboard',
+			timestamp: Date.now() - slideStart,
+			mode,
+			board
+		};
+		document.dispatchEvent( message );	
+	}
+
+	function setupDrawingCanvas( id ) {
+		var container = document.createElement( 'div' );
+		container.id = drawingCanvas[ id ].id;
+		container.classList.add( 'overlay' );
+		container.setAttribute( 'data-prevent-swipe', 'true' );
+		container.oncontextmenu = function () {
+			return false;
+		}
+		container.style.cursor = pens[ id ][ color[ id ] ].cursor;
+
+		drawingCanvas[ id ].width = window.innerWidth;
+		drawingCanvas[ id ].height = window.innerHeight;
+		drawingCanvas[ id ].scale = 1;
+		drawingCanvas[ id ].xOffset = 0;
+		drawingCanvas[ id ].yOffset = 0;
+
+		if ( id == "0" ) {
+			container.style.background = 'rgba(0,0,0,0)';
+			container.style.zIndex = 24;
+			container.style.opacity = 1;
+			container.style.visibility = 'visible';
+			container.style.pointerEvents = 'none';
+
+			var slides = document.querySelector( '.slides' );
+			var aspectRatio = Reveal.getConfig().width / Reveal.getConfig().height;
+			if ( drawingCanvas[ id ].width > drawingCanvas[ id ].height * aspectRatio ) {
+				drawingCanvas[ id ].xOffset = ( drawingCanvas[ id ].width - drawingCanvas[ id ].height * aspectRatio ) / 2;
+			} else if ( drawingCanvas[ id ].height > drawingCanvas[ id ].width / aspectRatio ) {
+				drawingCanvas[ id ].yOffset = ( drawingCanvas[ id ].height - drawingCanvas[ id ].width / aspectRatio ) / 2;
+			}
+
+			if ( colorButtons ) {
+				var palette = createPalette( boardmarkers, colorButtons );
+				palette.style.visibility = 'hidden'; // only show palette in drawing mode
+				container.appendChild( palette );
+			}
+		} else {
+			container.style.background = 'url("' + background[ id ] + '") repeat';
+			container.style.zIndex = 26;
+			container.style.opacity = 0;
+			container.style.visibility = 'hidden';
+
+			if ( colorButtons ) {
+				var palette = createPalette( chalks, colorButtons );
+				container.appendChild( palette );
+			}
+			if ( boardHandle ) {
+				var handle = document.createElement( 'div' );
+				handle.classList.add( 'boardhandle' );
+				handle.innerHTML = '
';
+				handle.querySelector( '#previousboard' ).addEventListener( 'click', function ( e ) {
+					e.preventDefault();
+					switchBoard( board - 1 );
+				} );
+				handle.querySelector( '#nextboard' ).addEventListener( 'click', function ( e ) {
+					e.preventDefault();
+					switchBoard( board + 1 );
+				} );
+				handle.querySelector( '#previousboard' ).addEventListener( 'touchstart', function ( e ) {
+					e.preventDefault();
+					switchBoard( board - 1 );
+				} );
+				handle.querySelector( '#nextboard' ).addEventListener( 'touchstart', function ( e ) {
+					e.preventDefault();
+					switchBoard( board + 1 );
+				} );
+
+				container.appendChild( handle );
+			}
+		}
+
+
+		var sponge = document.createElement( 'img' );
+		sponge.src = eraser.src;
+		sponge.id = 'sponge';
+		sponge.style.visibility = 'hidden';
+		sponge.style.position = 'absolute';
+		container.appendChild( sponge );
+		drawingCanvas[ id ].sponge = sponge;
+
+		var canvas = document.createElement( 'canvas' );
+		canvas.width = drawingCanvas[ id ].width;
+		canvas.height = drawingCanvas[ id ].height;
+		canvas.setAttribute( 'data-chalkboard', id );
+		canvas.style.cursor = pens[ id ][ color[ id ] ].cursor;
+		container.appendChild( canvas );
+		drawingCanvas[ id ].canvas = canvas;
+
+		drawingCanvas[ id ].context = canvas.getContext( '2d' );
+
+		setupCanvasEvents( container );
+
+		document.querySelector( '.reveal' ).appendChild( container );
+		drawingCanvas[ id ].container = container;
+	}
+
+
+/*****************************************************************
+ ** Storage
+ ******************************************************************/
+
+	var storage = [ {
+			width: Reveal.getConfig().width,
+			height: Reveal.getConfig().height,
+			data: []
+		},
+		{
+			width: Reveal.getConfig().width,
+			height: Reveal.getConfig().height,
+			data: []
+		}
+	];
+
+	var loaded = null;
+
+	if ( config.storage ) {
+		// Get chalkboard drawings from session storage
+		loaded = initStorage( sessionStorage.getItem( config.storage ) );
+	}
+
+	if ( !loaded && config.src != null ) {
+		// Get chalkboard drawings from the given file
+		loadData( config.src );
+	}
+
+	/**
+	 * Initialize storage.
+	 */
+	function initStorage( json ) {
+		var success = false;
+		try {
+			var data = JSON.parse( json );
+			for ( var id = 0; id < data.length; id++ ) {
+				if ( drawingCanvas[ id ].width != data[ id ].width || drawingCanvas[ id ].height != data[ id ].height ) {
+					drawingCanvas[ id ].scale = Math.min( drawingCanvas[ id ].width / data[ id ].width, drawingCanvas[ id ].height / data[ id ].height );
+					drawingCanvas[ id ].xOffset = ( drawingCanvas[ id ].width - data[ id ].width * drawingCanvas[ id ].scale ) / 2;
+					drawingCanvas[ id ].yOffset = ( drawingCanvas[ id ].height - data[ id ].height * drawingCanvas[ id ].scale ) / 2;
+				}
+				if ( config.readOnly ) {
+					drawingCanvas[ id ].container.style.cursor = 'default';
+					drawingCanvas[ id ].canvas.style.cursor = 'default';
+				}
+			}
+			success = true;
+			storage = data;
+		} catch ( err ) {
+			console.warn( "Cannot initialise storage!" );
+		}
+		return success;
+	}
+
+
+	/**
+	 * Load data.
+	 */
+	function loadData( filename ) {
+		var xhr = new XMLHttpRequest();
+		xhr.onload = function () {
+			if ( xhr.readyState === 4 && xhr.status != 404 ) {
+				loaded = initStorage( xhr.responseText );
+				updateStorage();
+				console.log( "Drawings loaded from file" );
+			} else {
+				config.readOnly = undefined;
+				readOnly = undefined;
+				console.warn( 'Failed to get file ' + filename + '. ReadyState: ' + xhr.readyState + ', Status: ' + xhr.status );
+				loaded = false;
+			}
+		};
+
+		xhr.open( 'GET', filename, true );
+		try {
+			xhr.send();
+		} catch ( error ) {
+			config.readOnly = undefined;
+			readOnly = undefined;
+			console.warn( 'Failed to get file ' + filename + '. Make sure that the presentation and the file are served by a HTTP server and the file can be found there. ' + error );
+			loaded = false;
+		}
+	}
+
+
+	function storageChanged( now ) {
+		if ( !now ) {
+			// create or update timer
+			if ( updateStorageTimeout ) {
+				clearTimeout( updateStorageTimeout );
+			}
+			updateStorageTimeout = setTimeout( storageChanged, 1000, true);
+		}
+		else {
+// console.log("Update storage", updateStorageTimeout,  Date.now());
+			updateStorage();
+			updateStorageTimeout = null;
+		}
+	}
+
+	function updateStorage() {
+		var json = JSON.stringify( storage )
+		if ( config.storage ) {
+			sessionStorage.setItem( config.storage, json )
+		}
+		return json;
+	}
+
+	function recordEvent( event ) {
+//console.log(event);
+		event.time = Date.now() - slideStart;
+		if ( mode == 1 ) event.board = board;
+		var slideData = getSlideData();
+		var i = slideData.events.length;
+		while ( i > 0 && event.time < slideData.events[ i - 1 ].time ) {
+			i--;
+		}
+		slideData.events.splice( i, 0, event );
+		slideData.duration = Math.max( slideData.duration, Date.now() - slideStart ) + 1;
+
+		storageChanged();
+	}
+
+	/**
+	 * Get data as json string.
+	 */
+	function getData() {
+		// cleanup slide data without events
+		for ( var id = 0; id < 2; id++ ) {
+			for ( var i = storage[ id ].data.length - 1; i >= 0; i-- ) {
+				if ( storage[ id ].data[ i ].events.length == 0 ) {
+					storage[ id ].data.splice( i, 1 );
+				}
+			}
+		}
+
+		return updateStorage();
+	}
+
+	/**
+	 * Download data.
+	 */
+	function downloadData() {
+		var a = document.createElement( 'a' );
+		document.body.appendChild( a );
+		try {
+			a.download = 'chalkboard.json';
+			var blob = new Blob( [ getData() ], {
+				type: 'application/json'
+			} );
+			a.href = window.URL.createObjectURL( blob );
+		} catch ( error ) {
+			// https://stackoverflow.com/a/6234804
+			// escape data for proper handling of quotes and line breaks
+			// in case malicious gets a chance to craft the exception message
+			error = String(error).replace(/&/g, "&")
+					.replace(//g, ">")
+					.replace(/"/g, """)
+					.replace(/'/g, "'");
+
+			a.innerHTML += ' (' + error + ')';
+		}
+		a.click();
+		document.body.removeChild( a );
+	}
+
+	/**
+	 * Returns data object for the slide with the given indices.
+	 */
+	function getSlideData( indices, id ) {
+		if ( id == undefined ) id = mode;
+		if ( !indices ) indices = slideIndices;
+		var data;
+		for ( var i = 0; i < storage[ id ].data.length; i++ ) {
+			if ( storage[ id ].data[ i ].slide.h === indices.h && storage[ id ].data[ i ].slide.v === indices.v && storage[ id ].data[ i ].slide.f === indices.f ) {
+				data = storage[ id ].data[ i ];
+				return data;
+			}
+		}
+		var page = Number( Reveal.getCurrentSlide().getAttribute('data-pdf-page-number') ); 
+//console.log( indices, Reveal.getCurrentSlide() );
+		storage[ id ].data.push( {
+			slide: indices,
+			page,
+			events: [],
+			duration: 0
+		} );
+		data = storage[ id ].data[ storage[ id ].data.length - 1 ];
+		return data;
+	}
+
+	/**
+	 * Returns maximum duration of slide playback for both modes
+	 */
+	function getSlideDuration( indices ) {
+		if ( !indices ) indices = slideIndices;
+		var duration = 0;
+		for ( var id = 0; id < 2; id++ ) {
+			for ( var i = 0; i < storage[ id ].data.length; i++ ) {
+				if ( storage[ id ].data[ i ].slide.h === indices.h && storage[ id ].data[ i ].slide.v === indices.v && storage[ id ].data[ i ].slide.f === indices.f ) {
+					duration = Math.max( duration, storage[ id ].data[ i ].duration );
+					break;
+				}
+			}
+		}
+//console.log( duration );
+		return duration;
+	}
+
+/*****************************************************************
+ ** Print
+ ******************************************************************/
+	var printMode = ( /print-pdf/gi ).test( window.location.search );
+//console.log("createPrintout" + printMode)
+
+	function addPageNumbers() {
+		// determine page number for printouts with fragments serialised
+		var slides = Reveal.getSlides();
+		var page = 0;
+		for ( var i=0; i < slides.length; i++) {
+			slides[i].setAttribute('data-pdf-page-number',page.toString());
+			// add number of fragments without fragment indices
+			var count = slides[i].querySelectorAll('.fragment:not([data-fragment-index])').length;
+			var fragments = slides[i].querySelectorAll('.fragment[data-fragment-index]');
+			for ( var j=0; j < fragments.length; j++) {
+				// increasenumber of fragments by highest fragment index (which start at 0)
+				if ( Number(fragments[j].getAttribute('data-fragment-index')) + 1 > count ) {
+					count = Number(fragments[j].getAttribute('data-fragment-index')) + 1;
+				}
+			}
+//console.log(count,fragments.length,( slides[i].querySelector('h1,h2,h3,h4')||{}).innerHTML, page); 
+			page += count + 1;
+		}
+	}
+
+	function createPrintout() {
+		//console.warn(Reveal.getTotalSlides(),Reveal.getSlidesElement());
+		if ( storage[ 1 ].data.length == 0 ) return;
+		console.log( 'Create printout(s) for ' + storage[ 1 ].data.length + " slides" );
+		drawingCanvas[ 0 ].container.style.opacity = 0; // do not print notes canvas
+		drawingCanvas[ 0 ].container.style.visibility = 'hidden';
+
+		var patImg = new Image();
+		patImg.onload = function () {
+			var slides = Reveal.getSlides();
+//console.log(slides);
+			for ( var i = storage[ 1 ].data.length - 1; i >= 0; i-- ) {
+				console.log( 'Create printout for slide ' + storage[ 1 ].data[ i ].slide.h + '.' + storage[ 1 ].data[ i ].slide.v );
+				var slideData = getSlideData( storage[ 1 ].data[ i ].slide, 1 );
+				var drawings = createDrawings( slideData, patImg );
+//console.log("Page:", storage[ 1 ].data[ i ].page );
+//console.log("Slide:", slides[storage[ 1 ].data[ i ].page] );
+				addDrawings( slides[storage[ 1 ].data[ i ].page], drawings );
+
+			}
+//			Reveal.sync();
+		};
+		patImg.src = background[ 1 ];
+	}
+
+
+	function cloneCanvas( oldCanvas ) {
+		//create a new canvas
+		var newCanvas = document.createElement( 'canvas' );
+		var context = newCanvas.getContext( '2d' );
+		//set dimensions
+		newCanvas.width = oldCanvas.width;
+		newCanvas.height = oldCanvas.height;
+		//apply the old canvas to the new one
+		context.drawImage( oldCanvas, 0, 0 );
+		//return the new canvas
+		return newCanvas;
+	}
+
+	function getCanvas( template, container, board ) {
+		var idx = container.findIndex( element => element.board === board );
+		if ( idx === -1 ) {
+			var canvas = cloneCanvas( template );
+			if ( !container.length ) {
+				idx = 0;
+				container.push( {
+					board,
+					canvas
+				} );
+			} else if ( board < container[ 0 ].board ) {
+				idx = 0;
+				container.unshift( {
+					board,
+					canvas
+				} );
+			} else if ( board > container[ container.length - 1 ].board ) {
+				idx = container.length;
+				container.push( {
+					board,
+					canvas
+				} );
+			}
+		}
+
+		return container[ idx ].canvas;
+	}
+
+	function createDrawings( slideData, patImg ) {
+		var width = Reveal.getConfig().width;
+		var height = Reveal.getConfig().height;
+		var scale = 1;
+		var xOffset = 0;
+		var yOffset = 0;
+		if ( width != storage[ 1 ].width || height != storage[ 1 ].height ) {
+			scale = Math.min( width / storage[ 1 ].width, height / storage[ 1 ].height );
+			xOffset = ( width - storage[ 1 ].width * scale ) / 2;
+			yOffset = ( height - storage[ 1 ].height * scale ) / 2;
+		}
+		mode = 1;
+		board = 0;
+//		console.log( 'Create printout(s) for slide ', slideData );
+
+		var drawings = [];
+		var template = document.createElement( 'canvas' );
+		template.width = width;
+		template.height = height;
+
+		var imgCtx = template.getContext( '2d' );
+		imgCtx.fillStyle = imgCtx.createPattern( patImg, 'repeat' );
+		imgCtx.rect( 0, 0, width, height );
+		imgCtx.fill();
+
+		for ( var j = 0; j < slideData.events.length; j++ ) {
+			switch ( slideData.events[ j ].type ) {
+			case 'draw':
+				draw[ 1 ]( getCanvas( template, drawings, board ).getContext( '2d' ),
+					xOffset + slideData.events[ j ].x1 * scale,
+					yOffset + slideData.events[ j ].y1 * scale,
+					xOffset + slideData.events[ j ].x2 * scale,
+					yOffset + slideData.events[ j ].y2 * scale,
+					yOffset + slideData.events[ j ].color
+				);
+				break;
+			case 'erase':
+				eraseWithSponge( getCanvas( template, drawings, board ).getContext( '2d' ),
+					xOffset + slideData.events[ j ].x * scale,
+					yOffset + slideData.events[ j ].y * scale
+				);
+				break;
+			case 'selectboard':
+				selectBoard( slideData.events[ j ].board );
+				break;
+			case 'clear':
+				getCanvas( template, drawings, board ).getContext( '2d' ).clearRect( 0, 0, width, height );
+				getCanvas( template, drawings, board ).getContext( '2d' ).fill();
+				break;
+			default:
+				break;
+			}
+		}
+
+		drawings = drawings.sort( ( a, b ) => a.board > b.board && 1 || -1 );
+
+		mode = 0;
+
+		return drawings;
+	}
+
+	function addDrawings( slide, drawings ) {
+		var parent = slide.parentElement.parentElement;
+		var nextSlide = slide.parentElement.nextElementSibling;
+
+		for ( var i = 0; i < drawings.length; i++ ) {
+			var newPDFPage = document.createElement( 'div' );
+			newPDFPage.classList.add( 'pdf-page' );
+			newPDFPage.style.height = Reveal.getConfig().height;
+			newPDFPage.append( drawings[ i ].canvas );
+//console.log("Add drawing", newPDFPage);
+			if ( nextSlide != null ) {
+				parent.insertBefore( newPDFPage, nextSlide );
+			} else {
+				parent.append( newPDFPage );
+			}
+		}
+	}
+
+	/*****************************************************************
+	 ** Drawings
+	 ******************************************************************/
+
+	function drawWithBoardmarker( context, fromX, fromY, toX, toY, colorIdx ) {
+		if ( colorIdx == undefined ) colorIdx = color[ mode ];
+		context.lineWidth = boardmarkerWidth;
+		context.lineCap = 'round';
+		context.strokeStyle = boardmarkers[ colorIdx ].color;
+		context.beginPath();
+		context.moveTo( fromX, fromY );
+		context.lineTo( toX, toY );
+		context.stroke();
+	}
+
+	function drawWithChalk( context, fromX, fromY, toX, toY, colorIdx ) {
+		if ( colorIdx == undefined ) colorIdx = color[ mode ];
+		var brushDiameter = chalkWidth;
+		context.lineWidth = brushDiameter;
+		context.lineCap = 'round';
+		context.fillStyle = chalks[ colorIdx ].color; // 'rgba(255,255,255,0.5)';
+		context.strokeStyle = chalks[ colorIdx ].color;
+		/*var opacity = Math.min(0.8, Math.max(0,color[1].replace(/^.*,(.+)\)/,'$1') - 0.1)) + Math.random()*0.2;*/
+		var opacity = 1.0;
+		context.strokeStyle = context.strokeStyle.replace( /[\d\.]+\)$/g, opacity + ')' );
+		context.beginPath();
+		context.moveTo( fromX, fromY );
+		context.lineTo( toX, toY );
+		context.stroke();
+		// Chalk Effect
+		var length = Math.round( Math.sqrt( Math.pow( toX - fromX, 2 ) + Math.pow( toY - fromY, 2 ) ) / ( 5 / brushDiameter ) );
+		var xUnit = ( toX - fromX ) / length;
+		var yUnit = ( toY - fromY ) / length;
+		for ( var i = 0; i < length; i++ ) {
+			if ( chalkEffect > ( Math.random() * 0.9 ) ) {
+				var xCurrent = fromX + ( i * xUnit );
+				var yCurrent = fromY + ( i * yUnit );
+				var xRandom = xCurrent + ( Math.random() - 0.5 ) * brushDiameter * 1.2;
+				var yRandom = yCurrent + ( Math.random() - 0.5 ) * brushDiameter * 1.2;
+				context.clearRect( xRandom, yRandom, Math.random() * 2 + 2, Math.random() + 1 );
+			}
+		}
+	}
+ 
+	function eraseWithSponge( context, x, y ) {
+		context.save();
+		context.beginPath();
+		context.arc( x, y, eraser.radius, 0, 2 * Math.PI, false );
+		context.clip();
+		context.clearRect( x - eraser.radius - 1, y - eraser.radius - 1, eraser.radius * 2 + 2, eraser.radius * 2 + 2 );
+		context.restore();
+		if ( mode == 1 && grid ) {
+			redrawGrid( x, y, eraser.radius );
+		}
+	}
+
+
+	/**
+	 * Show an overlay for the chalkboard.
+	 */
+	function showChalkboard() {
+//console.log("showChalkboard");
+		clearTimeout( touchTimeout );
+		touchTimeout = null;
+		drawingCanvas[ 0 ].sponge.style.visibility = 'hidden'; // make sure that the sponge from touch events is hidden
+		drawingCanvas[ 1 ].sponge.style.visibility = 'hidden'; // make sure that the sponge from touch events is hidden
+		drawingCanvas[ 1 ].container.style.opacity = 1;
+		drawingCanvas[ 1 ].container.style.visibility = 'visible';
+		mode = 1;
+	}
+
+
+	/**
+	 * Closes open chalkboard.
+	 */
+	function closeChalkboard() {
+		clearTimeout( touchTimeout );
+		touchTimeout = null;
+		drawingCanvas[ 0 ].sponge.style.visibility = 'hidden'; // make sure that the sponge from touch events is hidden
+		drawingCanvas[ 1 ].sponge.style.visibility = 'hidden'; // make sure that the sponge from touch events is hidden
+		drawingCanvas[ 1 ].container.style.opacity = 0;
+		drawingCanvas[ 1 ].container.style.visibility = 'hidden';
+		lastX = null;
+		lastY = null;
+		mode = 0;
+	}
+
+	/**
+	 * Clear current canvas.
+	 */
+	function clearCanvas( id ) {
+		if ( id == 0 ) clearTimeout( slidechangeTimeout );
+		drawingCanvas[ id ].context.clearRect( 0, 0, drawingCanvas[ id ].width, drawingCanvas[ id ].height );
+		if ( id == 1 && grid ) drawGrid();
+	}
+
+	/**
+	 * Draw grid on background
+	 */
+	function drawGrid() {
+		var context = drawingCanvas[ 1 ].context;
+
+		drawingCanvas[ 1 ].scale = Math.min( drawingCanvas[ 1 ].width / storage[ 1 ].width, drawingCanvas[ 1 ].height / storage[ 1 ].height );
+		drawingCanvas[ 1 ].xOffset = ( drawingCanvas[ 1 ].width - storage[ 1 ].width * drawingCanvas[ 1 ].scale ) / 2;
+		drawingCanvas[ 1 ].yOffset = ( drawingCanvas[ 1 ].height - storage[ 1 ].height * drawingCanvas[ 1 ].scale ) / 2;
+
+		var scale = drawingCanvas[ 1 ].scale;
+		var xOffset = drawingCanvas[ 1 ].xOffset;
+		var yOffset = drawingCanvas[ 1 ].yOffset;
+
+		var distance = grid.distance * scale;
+
+		var fromX = drawingCanvas[ 1 ].width / 2 - distance / 2 - Math.floor( ( drawingCanvas[ 1 ].width - distance ) / 2 / distance ) * distance;
+		for ( var x = fromX; x < drawingCanvas[ 1 ].width; x += distance ) {
+			context.beginPath();
+			context.lineWidth = grid.width * scale;
+			context.lineCap = 'round';
+			context.fillStyle = grid.color;
+			context.strokeStyle = grid.color;
+			context.moveTo( x, 0 );
+			context.lineTo( x, drawingCanvas[ 1 ].height );
+			context.stroke();
+		}
+		var fromY = drawingCanvas[ 1 ].height / 2 - distance / 2 - Math.floor( ( drawingCanvas[ 1 ].height - distance ) / 2 / distance ) * distance;
+
+		for ( var y = fromY; y < drawingCanvas[ 1 ].height; y += distance ) {
+			context.beginPath();
+			context.lineWidth = grid.width * scale;
+			context.lineCap = 'round';
+			context.fillStyle = grid.color;
+			context.strokeStyle = grid.color;
+			context.moveTo( 0, y );
+			context.lineTo( drawingCanvas[ 1 ].width, y );
+			context.stroke();
+		}
+	}
+
+	function redrawGrid( centerX, centerY, diameter ) {
+		var context = drawingCanvas[ 1 ].context;
+
+		drawingCanvas[ 1 ].scale = Math.min( drawingCanvas[ 1 ].width / storage[ 1 ].width, drawingCanvas[ 1 ].height / storage[ 1 ].height );
+		drawingCanvas[ 1 ].xOffset = ( drawingCanvas[ 1 ].width - storage[ 1 ].width * drawingCanvas[ 1 ].scale ) / 2;
+		drawingCanvas[ 1 ].yOffset = ( drawingCanvas[ 1 ].height - storage[ 1 ].height * drawingCanvas[ 1 ].scale ) / 2;
+
+		var scale = drawingCanvas[ 1 ].scale;
+		var xOffset = drawingCanvas[ 1 ].xOffset;
+		var yOffset = drawingCanvas[ 1 ].yOffset;
+
+		var distance = grid.distance * scale;
+
+		var fromX = drawingCanvas[ 1 ].width / 2 - distance / 2 - Math.floor( ( drawingCanvas[ 1 ].width - distance ) / 2 / distance ) * distance;
+
+		for ( var x = fromX + distance * Math.ceil( ( centerX - diameter - fromX ) / distance ); x <= fromX + distance * Math.floor( ( centerX + diameter - fromX ) / distance ); x += distance ) {
+			context.beginPath();
+			context.lineWidth = grid.width * scale;
+			context.lineCap = 'round';
+			context.fillStyle = grid.color;
+			context.strokeStyle = grid.color;
+			context.moveTo( x, centerY - Math.sqrt( diameter * diameter - ( centerX - x ) * ( centerX - x ) ) );
+			context.lineTo( x, centerY + Math.sqrt( diameter * diameter - ( centerX - x ) * ( centerX - x ) ) );
+			context.stroke();
+		}
+		var fromY = drawingCanvas[ 1 ].height / 2 - distance / 2 - Math.floor( ( drawingCanvas[ 1 ].height - distance ) / 2 / distance ) * distance;
+		for ( var y = fromY + distance * Math.ceil( ( centerY - diameter - fromY ) / distance ); y <= fromY + distance * Math.floor( ( centerY + diameter - fromY ) / distance ); y += distance ) {
+			context.beginPath();
+			context.lineWidth = grid.width * scale;
+			context.lineCap = 'round';
+			context.fillStyle = grid.color;
+			context.strokeStyle = grid.color;
+			context.moveTo( centerX - Math.sqrt( diameter * diameter - ( centerY - y ) * ( centerY - y ) ), y );
+			context.lineTo( centerX + Math.sqrt( diameter * diameter - ( centerY - y ) * ( centerY - y ) ), y );
+			context.stroke();
+		}
+	}
+
+	/**
+	 * Set the  color
+	 */
+	function setColor( index, record ) {
+		// protect against out of bounds (this could happen when
+		// replaying events recorded with different color settings).
+		if ( index >= pens[ mode ].length ) index = 0;
+		color[ mode ] = index;
+		drawingCanvas[ mode ].canvas.style.cursor = pens[ mode ][ color[ mode ] ].cursor;
+	}
+
+	/**
+	 * Set the  board
+	 */
+	function selectBoard( boardIdx, record ) {
+//console.log("Set board",boardIdx);
+		if ( board == boardIdx ) return;
+
+		board = boardIdx;
+		redrawChalkboard( boardIdx );
+		if ( record ) {
+			recordEvent( { type: 'selectboard' } );
+		}
+	}
+
+	function redrawChalkboard( boardIdx ) {
+		clearCanvas( 1 );
+		var slideData = getSlideData( slideIndices, 1 );
+		var index = 0;
+		var play = ( boardIdx == 0 );
+		while ( index < slideData.events.length && slideData.events[ index ].time < Date.now() - slideStart ) {
+			if ( boardIdx == slideData.events[ index ].board ) {
+				playEvent( 1, slideData.events[ index ], Date.now() - slideStart );
+			}
+
+			index++;
+		}
+	}
+
+
+	/**
+	 * Forward cycle color
+	 */
+	function cycleColorNext() {
+		color[ mode ] = ( color[ mode ] + 1 ) % pens[ mode ].length;
+		return color[ mode ];
+	}
+
+	/**
+	 * Backward cycle color
+	 */
+	function cycleColorPrev() {
+		color[ mode ] = ( color[ mode ] + ( pens[ mode ].length - 1 ) ) % pens[ mode ].length;
+		return color[ mode ];
+	}
+
+/*****************************************************************
+ ** Broadcast
+ ******************************************************************/
+
+	var eventQueue = [];
+
+	document.addEventListener( 'received', function ( message ) {
+		if ( message.content && message.content.sender == 'chalkboard-plugin' ) {
+			// add message to queue
+			eventQueue.push( message );
+			console.log( JSON.stringify( message ) );
+		}
+		if ( eventQueue.length == 1 ) processQueue();
+	} );
+
+	function processQueue() {
+		// take first message from queue
+		var message = eventQueue.shift();
+
+		// synchronize time with seminar host
+		slideStart = Date.now() - message.content.timestamp;
+		// set status
+		if ( mode < message.content.mode ) {
+			// open chalkboard
+			showChalkboard();
+		} else if ( mode > message.content.mode ) {
+			// close chalkboard
+			closeChalkboard();
+		}
+		if ( board != message.content.board ) {
+			board = message.content.board;
+			redrawChalkboard( board );
+		};
+
+		switch ( message.content.type ) {
+		case 'showChalkboard':
+			showChalkboard();
+			break;
+		case 'closeChalkboard':
+			closeChalkboard();
+			break;
+		case 'erase':
+			erasePoint( message.content.x, message.content.y );
+			break;
+		case 'draw':
+			drawSegment( message.content.fromX, message.content.fromY, message.content.toX, message.content.toY, message.content.color );
+			break;
+		case 'clear':
+			clearSlide();
+			break;
+		case 'selectboard':
+			selectBoard( message.content.board, true );
+			break;
+		case 'resetSlide':
+			resetSlideDrawings();
+			break;
+		case 'init':
+			storage = message.content.storage;
+			for ( var id = 0; id < 2; id++ ) {
+				drawingCanvas[ id ].scale = Math.min( drawingCanvas[ id ].width / storage[ id ].width, drawingCanvas[ id ].height / storage[ id ].height );
+				drawingCanvas[ id ].xOffset = ( drawingCanvas[ id ].width - storage[ id ].width * drawingCanvas[ id ].scale ) / 2;
+				drawingCanvas[ id ].yOffset = ( drawingCanvas[ id ].height - storage[ id ].height * drawingCanvas[ id ].scale ) / 2;
+			}
+			clearCanvas( 0 );
+			clearCanvas( 1 );
+			if ( !playback ) {
+				slidechangeTimeout = setTimeout( startPlayback, transition, getSlideDuration(), 0 );
+			}
+			if ( mode == 1 && message.content.mode == 0 ) {
+				setTimeout( closeChalkboard, transition + 50 );
+			}
+			if ( mode == 0 && message.content.mode == 1 ) {
+				setTimeout( showChalkboard, transition + 50 );
+			}
+			mode = message.content.mode;
+			board = message.content.board;
+			break;
+		default:
+			break;
+		}
+
+		// continue with next message if queued
+		if ( eventQueue.length > 0 ) {
+			processQueue();
+		} else {
+			storageChanged();
+		}
+	}
+
+	document.addEventListener( 'welcome', function ( user ) {
+		// broadcast storage
+		var message = new CustomEvent( messageType );
+		message.content = {
+			sender: 'chalkboard-plugin',
+			recipient: user.id,
+			type: 'init',
+			timestamp: Date.now() - slideStart,
+			storage: storage,
+			mode,
+			board
+		};
+		document.dispatchEvent( message );
+	} );
+
+	/*****************************************************************
+	 ** Playback
+	 ******************************************************************/
+
+	document.addEventListener( 'seekplayback', function ( event ) {
+//console.log('event seekplayback ' + event.timestamp);
+		stopPlayback();
+		if ( !playback || event.timestamp == 0 ) {
+			// in other cases startplayback fires after seeked
+			startPlayback( event.timestamp );
+		}
+		//console.log('seeked');
+	} );
+
+
+	document.addEventListener( 'startplayback', function ( event ) {
+//console.log('event startplayback ' + event.timestamp);
+		stopPlayback();
+		playback = true;
+		startPlayback( event.timestamp );
+	} );
+
+	document.addEventListener( 'stopplayback', function ( event ) {
+//console.log('event stopplayback ' + (Date.now() - slideStart) );
+		playback = false;
+		stopPlayback();
+	} );
+
+	document.addEventListener( 'startrecording', function ( event ) {
+//console.log('event startrecording ' + event.timestamp);
+		startRecording();
+	} );
+
+
+	function startRecording() {
+		resetSlide( true );
+		slideStart = Date.now();
+	}
+
+	function startPlayback( timestamp, finalMode ) {
+//console.log("playback " + timestamp );
+		slideStart = Date.now() - timestamp;
+		closeChalkboard();
+		mode = 0;
+		board = 0;
+		for ( var id = 0; id < 2; id++ ) {
+			clearCanvas( id );
+			var slideData = getSlideData( slideIndices, id );
+//console.log( timestamp +" / " + JSON.stringify(slideData));
+			var index = 0;
+			while ( index < slideData.events.length && slideData.events[ index ].time < ( Date.now() - slideStart ) ) {
+				playEvent( id, slideData.events[ index ], timestamp );
+				index++;
+			}
+
+			while ( playback && index < slideData.events.length ) {
+				timeouts[ id ].push( setTimeout( playEvent, slideData.events[ index ].time - ( Date.now() - slideStart ), id, slideData.events[ index ], timestamp ) );
+				index++;
+			}
+		}
+//console.log("Mode: " + finalMode + "/" + mode );
+		if ( finalMode != undefined ) {
+			mode = finalMode;
+		}
+		if ( mode == 1 ) showChalkboard();
+//console.log("playback (ok)");
+
+	};
+
+	function stopPlayback() {
+//console.log("stopPlayback");
+//console.log("Timeouts: " + timeouts[0].length + "/"+ timeouts[1].length);
+		for ( var id = 0; id < 2; id++ ) {
+			for ( var i = 0; i < timeouts[ id ].length; i++ ) {
+				clearTimeout( timeouts[ id ][ i ] );
+			}
+			timeouts[ id ] = [];
+		}
+	};
+
+	function playEvent( id, event, timestamp ) {
+//console.log( timestamp +" / " + JSON.stringify(event));
+//console.log( id + ": " + timestamp +" / " +  event.time +" / " + event.type +" / " + mode );
+		switch ( event.type ) {
+		case 'open':
+			if ( timestamp <= event.time ) {
+				showChalkboard();
+			} else {
+				mode = 1;
+			}
+
+			break;
+		case 'close':
+			if ( timestamp < event.time ) {
+				closeChalkboard();
+			} else {
+				mode = 0;
+			}
+			break;
+		case 'clear':
+			clearCanvas( id );
+			break;
+		case 'selectboard':
+			selectBoard( event.board );
+			break;
+		case 'draw':
+			drawLine( id, event, timestamp );
+			break;
+		case 'erase':
+			eraseCircle( id, event, timestamp );
+			break;
+		}
+	};
+
+	function drawLine( id, event, timestamp ) {
+		var ctx = drawingCanvas[ id ].context;
+		var scale = drawingCanvas[ id ].scale;
+		var xOffset = drawingCanvas[ id ].xOffset;
+		var yOffset = drawingCanvas[ id ].yOffset;
+		draw[ id ]( ctx, xOffset + event.x1 * scale, yOffset + event.y1 * scale, xOffset + event.x2 * scale, yOffset + event.y2 * scale, event.color );
+	};
+
+	function eraseCircle( id, event, timestamp ) {
+		var ctx = drawingCanvas[ id ].context;
+		var scale = drawingCanvas[ id ].scale;
+		var xOffset = drawingCanvas[ id ].xOffset;
+		var yOffset = drawingCanvas[ id ].yOffset;
+
+		eraseWithSponge( ctx, xOffset + event.x * scale, yOffset + event.y * scale );
+	};
+
+	function startErasing( x, y ) {
+		drawing = false;
+		erasing = true;
+		drawingCanvas[ mode ].sponge.style.visibility = 'visible';
+		erasePoint( x, y );
+	}
+
+	function erasePoint( x, y ) {
+		var ctx = drawingCanvas[ mode ].context;
+		var scale = drawingCanvas[ mode ].scale;
+		var xOffset = drawingCanvas[ mode ].xOffset;
+		var yOffset = drawingCanvas[ mode ].yOffset;
+
+		// move sponge image
+		drawingCanvas[ mode ].sponge.style.left = ( x * scale + xOffset - eraser.radius ) + 'px';
+		drawingCanvas[ mode ].sponge.style.top = ( y * scale + yOffset - 2 * eraser.radius ) + 'px';
+
+		recordEvent( {
+			type: 'erase',
+			x,
+			y
+		} );
+
+		if (
+			x * scale + xOffset > 0 &&
+			y * scale + yOffset > 0 &&
+			x * scale + xOffset < drawingCanvas[ mode ].width &&
+			y * scale + yOffset < drawingCanvas[ mode ].height
+		) {
+			eraseWithSponge( ctx, x * scale + xOffset, y * scale + yOffset );
+		}
+	}
+
+	function stopErasing() {
+		erasing = false;
+		// hide sponge
+		drawingCanvas[ mode ].sponge.style.visibility = 'hidden';
+	}
+
+	function startDrawing( x, y ) {
+		drawing = true;
+
+		var ctx = drawingCanvas[ mode ].context;
+		var scale = drawingCanvas[ mode ].scale;
+		var xOffset = drawingCanvas[ mode ].xOffset;
+		var yOffset = drawingCanvas[ mode ].yOffset;
+		lastX = x * scale + xOffset;
+		lastY = y * scale + yOffset;
+	}
+
+	function drawSegment( fromX, fromY, toX, toY, colorIdx ) {
+		var ctx = drawingCanvas[ mode ].context;
+		var scale = drawingCanvas[ mode ].scale;
+		var xOffset = drawingCanvas[ mode ].xOffset;
+		var yOffset = drawingCanvas[ mode ].yOffset;
+
+		recordEvent( {
+			type: 'draw',
+			color: colorIdx,
+			x1: fromX,
+			y1: fromY,
+			x2: toX,
+			y2: toY
+		} );
+
+		if (
+			fromX * scale + xOffset > 0 &&
+			fromY * scale + yOffset > 0 &&
+			fromX * scale + xOffset < drawingCanvas[ mode ].width &&
+			fromY * scale + yOffset < drawingCanvas[ mode ].height &&
+			toX * scale + xOffset > 0 &&
+			toY * scale + yOffset > 0 &&
+			toX * scale + xOffset < drawingCanvas[ mode ].width &&
+			toY * scale + yOffset < drawingCanvas[ mode ].height
+		) {
+			draw[ mode ]( ctx, fromX * scale + xOffset, fromY * scale + yOffset, toX * scale + xOffset, toY * scale + yOffset, colorIdx );
+		}
+	}
+
+	function stopDrawing() {
+		drawing = false;
+	}
+
+
+/*****************************************************************
+ ** User interface
+ ******************************************************************/
+
+	function setupCanvasEvents( canvas ) {
+// TODO: check all touchevents
+		canvas.addEventListener( 'touchstart', function ( evt ) {
+			evt.preventDefault();
+//console.log("Touch start");
+			if ( !readOnly && evt.target.getAttribute( 'data-chalkboard' ) == mode ) {
+				var scale = drawingCanvas[ mode ].scale;
+				var xOffset = drawingCanvas[ mode ].xOffset;
+				var yOffset = drawingCanvas[ mode ].yOffset;
+
+				var touch = evt.touches[ 0 ];
+				mouseX = touch.pageX;
+				mouseY = touch.pageY;
+				startDrawing( ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale );
+				touchTimeout = setTimeout( startErasing, 500,  ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale );
+			}
+		}, passiveSupported ? {
+			passive: false
+		} : false );
+
+		canvas.addEventListener( 'touchmove', function ( evt ) {
+			evt.preventDefault();
+//console.log("Touch move");
+			clearTimeout( touchTimeout );
+			touchTimeout = null;
+			if ( drawing || erasing ) {
+				var scale = drawingCanvas[ mode ].scale;
+				var xOffset = drawingCanvas[ mode ].xOffset;
+				var yOffset = drawingCanvas[ mode ].yOffset;
+
+				var touch = evt.touches[ 0 ];
+				mouseX = touch.pageX;
+				mouseY = touch.pageY;
+				if ( mouseY < drawingCanvas[ mode ].height && mouseX < drawingCanvas[ mode ].width ) {
+					// move sponge
+					if ( event.type == 'erase' ) {
+						drawingCanvas[ mode ].sponge.style.left = ( mouseX - eraser.radius ) + 'px';
+						drawingCanvas[ mode ].sponge.style.top = ( mouseY - eraser.radius ) + 'px';
+					}
+				}
+
+				if ( drawing ) {
+					drawSegment( ( lastX - xOffset ) / scale, ( lastY - yOffset ) / scale, ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale, color[ mode ] );
+					// broadcast
+					var message = new CustomEvent( messageType );
+					message.content = {
+						sender: 'chalkboard-plugin',
+						type: 'draw',
+						timestamp: Date.now() - slideStart,
+						mode,
+						board,
+						fromX: ( lastX - xOffset ) / scale,
+						fromY: ( lastY - yOffset ) / scale,
+						toX: ( mouseX - xOffset ) / scale,
+						toY: ( mouseY - yOffset ) / scale,
+						color: color[ mode ]
+					};
+					document.dispatchEvent( message );
+
+					lastX = mouseX;
+					lastY = mouseY;
+				} else {
+					erasePoint( ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale );
+					// broadcast
+					var message = new CustomEvent( messageType );
+					message.content = {
+						sender: 'chalkboard-plugin',
+						type: 'erase',
+						timestamp: Date.now() - slideStart,
+						mode,
+						board,
+						x: ( mouseX - xOffset ) / scale,
+						y: ( mouseY - yOffset ) / scale
+					};
+					document.dispatchEvent( message );
+				}
+
+			}
+		}, false );
+
+
+		canvas.addEventListener( 'touchend', function ( evt ) {
+			evt.preventDefault();
+			clearTimeout( touchTimeout );
+			touchTimeout = null;
+			// hide sponge image
+			drawingCanvas[ mode ].sponge.style.visibility = 'hidden';
+			stopDrawing();
+		}, false );
+
+		canvas.addEventListener( 'mousedown', function ( evt ) {
+			evt.preventDefault();
+			if ( !readOnly && evt.target.getAttribute( 'data-chalkboard' ) == mode ) {
+//console.log( "mousedown: " + evt.button );
+				var scale = drawingCanvas[ mode ].scale;
+				var xOffset = drawingCanvas[ mode ].xOffset;
+				var yOffset = drawingCanvas[ mode ].yOffset;
+
+				mouseX = evt.pageX;
+				mouseY = evt.pageY;
+
+				if ( evt.button == 2 || evt.button == 1 ) {
+					startErasing( ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale );
+					// broadcast
+					var message = new CustomEvent( messageType );
+					message.content = {
+						sender: 'chalkboard-plugin',
+						type: 'erase',
+						timestamp: Date.now() - slideStart,
+						mode,
+						board,
+						x: ( mouseX - xOffset ) / scale,
+						y: ( mouseY - yOffset ) / scale
+					};
+					document.dispatchEvent( message );
+				} else {
+					startDrawing( ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale );
+				}
+			}
+		} );
+
+		canvas.addEventListener( 'mousemove', function ( evt ) {
+			evt.preventDefault();
+//console.log("Mouse move");
+			if ( drawing || erasing ) {
+				var scale = drawingCanvas[ mode ].scale;
+				var xOffset = drawingCanvas[ mode ].xOffset;
+				var yOffset = drawingCanvas[ mode ].yOffset;
+
+				mouseX = evt.pageX;
+				mouseY = evt.pageY;
+
+				if ( drawing ) {
+					drawSegment( ( lastX - xOffset ) / scale, ( lastY - yOffset ) / scale, ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale, color[ mode ] );
+					// broadcast
+					var message = new CustomEvent( messageType );
+					message.content = {
+						sender: 'chalkboard-plugin',
+						type: 'draw',
+						timestamp: Date.now() - slideStart,
+						mode,
+						board,
+						fromX: ( lastX - xOffset ) / scale,
+						fromY: ( lastY - yOffset ) / scale,
+						toX: ( mouseX - xOffset ) / scale,
+						toY: ( mouseY - yOffset ) / scale,
+						color: color[ mode ]
+					};
+					document.dispatchEvent( message );
+
+					lastX = mouseX;
+					lastY = mouseY;
+				} else {
+					erasePoint( ( mouseX - xOffset ) / scale, ( mouseY - yOffset ) / scale );
+					// broadcast
+					var message = new CustomEvent( messageType );
+					message.content = {
+						sender: 'chalkboard-plugin',
+						type: 'erase',
+						timestamp: Date.now() - slideStart,
+						mode,
+						board,
+						x: ( mouseX - xOffset ) / scale,
+						y: ( mouseY - yOffset ) / scale
+					};
+					document.dispatchEvent( message );
+				}
+
+			}
+		} );
+
+
+		canvas.addEventListener( 'mouseup', function ( evt ) {
+			evt.preventDefault();
+			drawingCanvas[ mode ].canvas.style.cursor = pens[ mode ][ color[ mode ] ].cursor;
+			if ( drawing || erasing ) {
+				stopDrawing();
+				stopErasing();
+			}
+		} );
+	}
+
+	function resize() {
+//console.log("resize");
+		// Resize the canvas and draw everything again
+		var timestamp = Date.now() - slideStart;
+		if ( !playback ) {
+			timestamp = getSlideDuration();
+		}
+
+//console.log( drawingCanvas[0].scale + "/" + drawingCanvas[0].xOffset + "/" +drawingCanvas[0].yOffset );
+		for ( var id = 0; id < 2; id++ ) {
+			drawingCanvas[ id ].width = window.innerWidth;
+			drawingCanvas[ id ].height = window.innerHeight;
+			drawingCanvas[ id ].canvas.width = drawingCanvas[ id ].width;
+			drawingCanvas[ id ].canvas.height = drawingCanvas[ id ].height;
+			drawingCanvas[ id ].context.canvas.width = drawingCanvas[ id ].width;
+			drawingCanvas[ id ].context.canvas.height = drawingCanvas[ id ].height;
+
+			drawingCanvas[ id ].scale = Math.min( drawingCanvas[ id ].width / storage[ id ].width, drawingCanvas[ id ].height / storage[ id ].height );
+			drawingCanvas[ id ].xOffset = ( drawingCanvas[ id ].width - storage[ id ].width * drawingCanvas[ id ].scale ) / 2;
+			drawingCanvas[ id ].yOffset = ( drawingCanvas[ id ].height - storage[ id ].height * drawingCanvas[ id ].scale ) / 2;
+//console.log( drawingCanvas[id].scale + "/" + drawingCanvas[id].xOffset + "/" +drawingCanvas[id].yOffset );
+		}
+//console.log( window.innerWidth + "/" + window.innerHeight);
+		startPlayback( timestamp, mode, true );
+	}
+
+	Reveal.addEventListener( 'pdf-ready', function ( evt ) {
+//		console.log( "Create printouts when ready" );
+		whenLoaded( createPrintout );
+	});
+
+	Reveal.addEventListener( 'ready', function ( evt ) {
+//console.log('ready');
+		if ( !printMode ) {
+			window.addEventListener( 'resize', resize );
+
+			slideStart = Date.now() - getSlideDuration();
+			slideIndices = Reveal.getIndices();
+			if ( !playback ) {
+				startPlayback( getSlideDuration(), 0 );
+			}
+			if ( Reveal.isAutoSliding() ) {
+				var event = new CustomEvent( 'startplayback' );
+				event.timestamp = 0;
+				document.dispatchEvent( event );
+			}
+			updateStorage();
+			whenReady( addPageNumbers );
+		}
+	} );
+	Reveal.addEventListener( 'slidechanged', function ( evt ) {
+//		clearTimeout( slidechangeTimeout );
+//console.log('slidechanged');
+		if ( !printMode ) {
+			slideStart = Date.now() - getSlideDuration();
+			slideIndices = Reveal.getIndices();
+			closeChalkboard();
+			board = 0;
+			clearCanvas( 0 );
+			clearCanvas( 1 );
+			if ( !playback ) {
+				slidechangeTimeout = setTimeout( startPlayback, transition, getSlideDuration(), 0 );
+			}
+			if ( Reveal.isAutoSliding() ) {
+				var event = new CustomEvent( 'startplayback' );
+				event.timestamp = 0;
+				document.dispatchEvent( event );
+			}
+		}
+	} );
+	Reveal.addEventListener( 'fragmentshown', function ( evt ) {
+//		clearTimeout( slidechangeTimeout );
+//console.log('fragmentshown');
+		if ( !printMode ) {
+			slideStart = Date.now() - getSlideDuration();
+			slideIndices = Reveal.getIndices();
+			closeChalkboard();
+			board = 0;
+			clearCanvas( 0 );
+			clearCanvas( 1 );
+			if ( Reveal.isAutoSliding() ) {
+				var event = new CustomEvent( 'startplayback' );
+				event.timestamp = 0;
+				document.dispatchEvent( event );
+			} else if ( !playback ) {
+				startPlayback( getSlideDuration(), 0 );
+//				closeChalkboard();
+			}
+		}
+	} );
+	Reveal.addEventListener( 'fragmenthidden', function ( evt ) {
+//		clearTimeout( slidechangeTimeout );
+//console.log('fragmenthidden');
+		if ( !printMode ) {
+			slideStart = Date.now() - getSlideDuration();
+			slideIndices = Reveal.getIndices();
+			closeChalkboard();
+			board = 0;
+			clearCanvas( 0 );
+			clearCanvas( 1 );
+			if ( Reveal.isAutoSliding() ) {
+				document.dispatchEvent( new CustomEvent( 'stopplayback' ) );
+			} else if ( !playback ) {
+				startPlayback( getSlideDuration() );
+				closeChalkboard();
+			}
+		}
+	} );
+
+	Reveal.addEventListener( 'autoslideresumed', function ( evt ) {
+//console.log('autoslideresumed');
+		var event = new CustomEvent( 'startplayback' );
+		event.timestamp = 0;
+		document.dispatchEvent( event );
+	} );
+	Reveal.addEventListener( 'autoslidepaused', function ( evt ) {
+//console.log('autoslidepaused');
+		document.dispatchEvent( new CustomEvent( 'stopplayback' ) );
+
+		// advance to end of slide
+//		closeChalkboard();
+		startPlayback( getSlideDuration(), 0 );
+	} );
+
+	function toggleNotesCanvas() {
+		if ( !readOnly ) {
+			if ( mode == 1 ) {
+				toggleChalkboard();
+				notescanvas.style.background = background[ 0 ]; //'rgba(255,0,0,0.5)';
+				notescanvas.style.pointerEvents = 'auto';
+			}
+			else {
+				if ( notescanvas.style.pointerEvents != 'none' ) {
+					// hide notes canvas
+					if ( colorButtons ) {
+						notescanvas.querySelector( '.palette' ).style.visibility = 'hidden';
+					}
+					notescanvas.style.background = 'rgba(0,0,0,0)';
+					notescanvas.style.pointerEvents = 'none';
+				}
+				else {
+					// show notes canvas
+					if ( colorButtons ) {
+						notescanvas.querySelector( '.palette' ).style.visibility = 'visible';
+					}
+					notescanvas.style.background = background[ 0 ]; //'rgba(255,0,0,0.5)';
+					notescanvas.style.pointerEvents = 'auto';
+
+					var idx = 0;
+					if ( color[ mode ] ) {
+						idx = color[ mode ];
+					}
+
+					setColor( idx, true );
+				}
+			}
+		}
+	};
+
+	function toggleChalkboard() {
+//console.log("toggleChalkboard " + mode);
+		if ( mode == 1 ) {
+			if ( !readOnly ) {
+				recordEvent( { type: 'close' } );
+			}
+			closeChalkboard();
+
+			// broadcast
+			var message = new CustomEvent( messageType );
+			message.content = {
+				sender: 'chalkboard-plugin',
+				type: 'closeChalkboard',
+				timestamp: Date.now() - slideStart,
+				mode: 0,
+				board
+			};
+			document.dispatchEvent( message );
+
+
+		} else {
+			showChalkboard();
+			if ( !readOnly ) {
+				recordEvent( { type: 'open' } );
+				// broadcast
+				var message = new CustomEvent( messageType );
+				message.content = {
+					sender: 'chalkboard-plugin',
+					type: 'showChalkboard',
+					timestamp: Date.now() - slideStart,
+					mode: 1,
+					board
+				};
+				document.dispatchEvent( message );
+
+				var idx = 0;
+
+				if ( rememberColor[ mode ] ) {
+					idx = color[ mode ];
+				}
+
+				setColor( idx, true );
+			}
+		}
+	};
+
+	function clearSlide() {
+		recordEvent( { type: 'clear' } );
+		clearCanvas( mode );
+	}
+
+	function clear() {
+		if ( !readOnly ) {
+			clearSlide();
+			// broadcast
+			var message = new CustomEvent( messageType );
+			message.content = {
+				sender: 'chalkboard-plugin',
+				type: 'clear',
+				timestamp: Date.now() - slideStart,
+				mode,
+				board
+			};
+			document.dispatchEvent( message );
+		}
+	};
+
+	function colorIndex( idx ) {
+		if ( !readOnly ) {
+			setColor( idx, true );
+		}
+	}
+
+	function colorNext() {
+		if ( !readOnly ) {
+			let idx = cycleColorNext();
+			setColor( idx, true );
+		}
+	}
+
+	function colorPrev() {
+		if ( !readOnly ) {
+			let idx = cycleColorPrev();
+			setColor( idx, true );
+		}
+	}
+
+	function resetSlideDrawings() {
+		slideStart = Date.now();
+		closeChalkboard();
+
+		clearCanvas( 0 );
+		clearCanvas( 1 );
+
+		mode = 1;
+		var slideData = getSlideData();
+		slideData.duration = 0;
+		slideData.events = [];
+		mode = 0;
+		var slideData = getSlideData();
+		slideData.duration = 0;
+		slideData.events = [];
+
+		updateStorage();
+	}
+
+	function resetSlide( force ) {
+		var ok = force || confirm( "Please confirm to delete chalkboard drawings on this slide!" );
+		if ( ok ) {
+//console.log("resetSlide ");
+			stopPlayback();
+			resetSlideDrawings();
+			// broadcast
+			var message = new CustomEvent( messageType );
+			message.content = {
+				sender: 'chalkboard-plugin',
+				type: 'resetSlide',
+				timestamp: Date.now() - slideStart,
+				mode,
+				board
+			};
+			document.dispatchEvent( message );
+		}
+	};
+
+	function resetStorage( force ) {
+		var ok = force || confirm( "Please confirm to delete all chalkboard drawings!" );
+		if ( ok ) {
+			stopPlayback();
+			slideStart = Date.now();
+			clearCanvas( 0 );
+			clearCanvas( 1 );
+			if ( mode == 1 ) {
+				closeChalkboard();
+			}
+
+			storage = [ {
+					width: Reveal.getConfig().width,
+					height: Reveal.getConfig().height,
+					data: []
+				},
+				{
+					width: Reveal.getConfig().width,
+					height: Reveal.getConfig().height,
+					data: []
+				}
+			];
+
+			if ( config.storage ) {
+				sessionStorage.setItem( config.storage, null )
+			}
+			// broadcast
+			var message = new CustomEvent( messageType );
+			message.content = {
+				sender: 'chalkboard-plugin',
+				type: 'init',
+				timestamp: Date.now() - slideStart,
+				storage,
+				mode,
+				board
+			};
+			document.dispatchEvent( message );
+		}
+	};
+
+	this.toggleNotesCanvas = toggleNotesCanvas;
+	this.toggleChalkboard = toggleChalkboard;
+	this.colorIndex = colorIndex;
+	this.colorNext = colorNext;
+	this.colorPrev = colorPrev;
+	this.clear = clear;
+	this.reset = resetSlide;
+	this.resetAll = resetStorage;
+	this.download = downloadData;
+	this.updateStorage = updateStorage;
+	this.getData = getData;
+	this.configure = configure;
+
+
+	for ( var key in keyBindings ) {
+		if ( keyBindings[ key ] ) {
+			Reveal.addKeyBinding( keyBindings[ key ], RevealChalkboard[ key ] );
+		}
+	};
+
+	return this;
+};
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/plugin.yml b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/plugin.yml
new file mode 100644
index 0000000..b0568c2
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/plugin.yml
@@ -0,0 +1,7 @@
+name: RevealChalkboard
+script: plugin.js
+stylesheet: ["font-awesome/css/all.css", "style.css"]
+self-contained: false
+config:
+  chalkboard:
+    buttons: true
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/style.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/style.css
new file mode 100644
index 0000000..08765e7
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-chalkboard/style.css
@@ -0,0 +1,44 @@
+div.palette, div.boardhandle {
+  position: absolute;
+/*
+  height: 260px;
+  margin: -130px 0 0 0px;
+*/  
+  top: 50%;
+  transform: translateY(-50%);
+  font-size: 24px;
+  border-radius: 10px;
+  border-top:    4px solid #222; 
+  border-right:  4px solid #222; 
+  border-bottom: 4px solid #222;
+  background: black;
+  transition: transform 0.3s;
+}
+
+div.palette  {
+  left: -10px;
+  padding-left:10px;
+}
+
+div.boardhandle {
+  right: -10px;
+  padding-right:10px;
+}
+
+div.palette > ul,
+div.boardhandle > ul {
+  list-style-type: none;
+  margin: 0;
+  padding: 0;
+}
+
+div.palette > ul > li,
+div.boardhandle > ul > li {
+  margin: 10px;
+}
+
+@media print {
+	div.palette, div.boardhandle, .chalkboard-button { 
+		display: none!important; 
+	}
+}
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/menu.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/menu.css
new file mode 100644
index 0000000..5a300fd
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/menu.css
@@ -0,0 +1,346 @@
+.slide-menu-wrapper {
+  font-family: 'Source Sans Pro', Helvetica, sans-serif;
+}
+
+.slide-menu-wrapper .slide-menu {
+  background-color: #333;
+  z-index: 200;
+  position: fixed;
+  top: 0;
+  width: 300px;
+  height: 100%;
+  /*overflow-y: scroll;*/
+  transition: transform 0.3s;
+  font-size: 16px;
+  font-weight: normal;
+}
+
+.slide-menu-wrapper .slide-menu.slide-menu--wide {
+  width: 500px;
+}
+
+.slide-menu-wrapper .slide-menu.slide-menu--third {
+  width: 33%;
+}
+
+.slide-menu-wrapper .slide-menu.slide-menu--half {
+  width: 50%;
+}
+
+.slide-menu-wrapper .slide-menu.slide-menu--full {
+  width: 95%;
+}
+
+/*
+ * Slides menu
+ */
+
+.slide-menu-wrapper .slide-menu-items {
+  margin: 0;
+  padding: 0;
+  width: 100%;
+  border-bottom: solid 1px #555;
+}
+
+.slide-menu-wrapper .slide-menu-item,
+.slide-menu-wrapper .slide-menu-item-vertical {
+  display: block;
+  text-align: left;
+  padding: 10px 18px;
+  color: #aaa;
+  cursor: pointer;
+}
+
+.slide-menu-wrapper .slide-menu-item-vertical {
+  padding-left: 30px;
+}
+
+.slide-menu-wrapper .slide-menu--wide .slide-menu-item-vertical,
+.slide-menu-wrapper .slide-menu--third .slide-menu-item-vertical,
+.slide-menu-wrapper .slide-menu--half .slide-menu-item-vertical,
+.slide-menu-wrapper .slide-menu--full .slide-menu-item-vertical,
+.slide-menu-wrapper .slide-menu--custom .slide-menu-item-vertical {
+  padding-left: 50px;
+}
+
+.slide-menu-wrapper .slide-menu-item {
+  border-top: solid 1px #555;
+}
+
+.slide-menu-wrapper .active-menu-panel li.selected {
+  background-color: #222;
+  color: white;
+}
+
+.slide-menu-wrapper .active-menu-panel li.active {
+  color: #eee;
+}
+
+.slide-menu-wrapper .slide-menu-item.no-title .slide-menu-item-title,
+.slide-menu-wrapper .slide-menu-item-vertical.no-title .slide-menu-item-title {
+  font-style: italic;
+}
+
+.slide-menu-wrapper .slide-menu-item-number {
+  color: #999;
+  padding-right: 6px;
+}
+
+.slide-menu-wrapper .slide-menu-item i.far,
+.slide-menu-wrapper .slide-menu-item i.fas,
+.slide-menu-wrapper .slide-menu-item-vertical i.far,
+.slide-menu-wrapper .slide-menu-item-vertical i.fas,
+.slide-menu-wrapper .slide-menu-item svg.svg-inline--fa,
+.slide-menu-wrapper .slide-menu-item-vertical svg.svg-inline--fa {
+  padding-right: 12px;
+  display: none;
+}
+
+.slide-menu-wrapper .slide-menu-item.past i.fas.past,
+.slide-menu-wrapper .slide-menu-item-vertical.past i.fas.past,
+.slide-menu-wrapper .slide-menu-item.active i.fas.active,
+.slide-menu-wrapper .slide-menu-item-vertical.active i.fas.active,
+.slide-menu-wrapper .slide-menu-item.future i.far.future,
+.slide-menu-wrapper .slide-menu-item-vertical.future i.far.future,
+.slide-menu-wrapper .slide-menu-item.past svg.svg-inline--fa.past,
+.slide-menu-wrapper .slide-menu-item-vertical.past svg.svg-inline--fa.past,
+.slide-menu-wrapper .slide-menu-item.active svg.svg-inline--fa.active,
+.slide-menu-wrapper .slide-menu-item-vertical.active svg.svg-inline--fa.active,
+.slide-menu-wrapper .slide-menu-item.future svg.svg-inline--fa.future,
+.slide-menu-wrapper .slide-menu-item-vertical.future svg.svg-inline--fa.future {
+  display: inline-block;
+}
+
+.slide-menu-wrapper .slide-menu-item.past i.fas.past,
+.slide-menu-wrapper .slide-menu-item-vertical.past i.fas.past,
+.slide-menu-wrapper .slide-menu-item.future i.far.future,
+.slide-menu-wrapper .slide-menu-item-vertical.future i.far.future,
+.slide-menu-wrapper .slide-menu-item.past svg.svg-inline--fa.past,
+.slide-menu-wrapper .slide-menu-item-vertical.past svg.svg-inline--fa.past,
+.slide-menu-wrapper .slide-menu-item.future svg.svg-inline--fa.future,
+.slide-menu-wrapper .slide-menu-item-vertical.future svg.svg-inline--fa.future {
+  opacity: 0.4;
+}
+
+.slide-menu-wrapper .slide-menu-item.active i.fas.active,
+.slide-menu-wrapper .slide-menu-item-vertical.active i.fas.active,
+.slide-menu-wrapper .slide-menu-item.active svg.svg-inline--fa.active,
+.slide-menu-wrapper .slide-menu-item-vertical.active svg.svg-inline--fa.active {
+  opacity: 0.8;
+}
+
+.slide-menu-wrapper .slide-menu--left {
+  left: 0;
+  -webkit-transform: translateX(-100%);
+  -ms-transform: translateX(-100%);
+  transform: translateX(-100%);
+}
+
+.slide-menu-wrapper .slide-menu--left.active {
+  -webkit-transform: translateX(0);
+  -ms-transform: translateX(0);
+  transform: translateX(0);
+}
+
+.slide-menu-wrapper .slide-menu--right {
+  right: 0;
+  -webkit-transform: translateX(100%);
+  -ms-transform: translateX(100%);
+  transform: translateX(100%);
+}
+
+.slide-menu-wrapper .slide-menu--right.active {
+  -webkit-transform: translateX(0);
+  -ms-transform: translateX(0);
+  transform: translateX(0);
+}
+
+.slide-menu-wrapper {
+  transition: transform 0.3s;
+}
+
+/*
+ * Toolbar
+ */
+.slide-menu-wrapper .slide-menu-toolbar {
+  height: 60px;
+  width: 100%;
+  font-size: 12px;
+  display: table;
+  table-layout: fixed; /* ensures equal width */
+  margin: 0;
+  padding: 0;
+  border-bottom: solid 2px #666;
+}
+
+.slide-menu-wrapper .slide-menu-toolbar > li {
+  display: table-cell;
+  line-height: 150%;
+  text-align: center;
+  vertical-align: middle;
+  cursor: pointer;
+  color: #aaa;
+  border-radius: 3px;
+}
+
+.slide-menu-wrapper .slide-menu-toolbar > li.toolbar-panel-button i,
+.slide-menu-wrapper
+  .slide-menu-toolbar
+  > li.toolbar-panel-button
+  svg.svg-inline--fa {
+  font-size: 1.7em;
+}
+
+.slide-menu-wrapper .slide-menu-toolbar > li.active-toolbar-button {
+  color: white;
+  text-shadow: 0 1px black;
+  text-decoration: underline;
+}
+
+.slide-menu-toolbar > li.toolbar-panel-button:hover {
+  color: white;
+}
+
+.slide-menu-toolbar
+  > li.toolbar-panel-button:hover
+  span.slide-menu-toolbar-label,
+.slide-menu-wrapper
+  .slide-menu-toolbar
+  > li.active-toolbar-button
+  span.slide-menu-toolbar-label {
+  visibility: visible;
+}
+
+/*
+ * Panels
+ */
+.slide-menu-wrapper .slide-menu-panel {
+  position: absolute;
+  width: 100%;
+  visibility: hidden;
+  height: calc(100% - 60px);
+  overflow-x: hidden;
+  overflow-y: auto;
+  color: #aaa;
+}
+
+.slide-menu-wrapper .slide-menu-panel.active-menu-panel {
+  visibility: visible;
+}
+
+.slide-menu-wrapper .slide-menu-panel h1,
+.slide-menu-wrapper .slide-menu-panel h2,
+.slide-menu-wrapper .slide-menu-panel h3,
+.slide-menu-wrapper .slide-menu-panel h4,
+.slide-menu-wrapper .slide-menu-panel h5,
+.slide-menu-wrapper .slide-menu-panel h6 {
+  margin: 20px 0 10px 0;
+  color: #fff;
+  line-height: 1.2;
+  letter-spacing: normal;
+  text-shadow: none;
+}
+
+.slide-menu-wrapper .slide-menu-panel h1 {
+  font-size: 1.6em;
+}
+.slide-menu-wrapper .slide-menu-panel h2 {
+  font-size: 1.4em;
+}
+.slide-menu-wrapper .slide-menu-panel h3 {
+  font-size: 1.3em;
+}
+.slide-menu-wrapper .slide-menu-panel h4 {
+  font-size: 1.1em;
+}
+.slide-menu-wrapper .slide-menu-panel h5 {
+  font-size: 1em;
+}
+.slide-menu-wrapper .slide-menu-panel h6 {
+  font-size: 0.9em;
+}
+
+.slide-menu-wrapper .slide-menu-panel p {
+  margin: 10px 0 5px 0;
+}
+
+.slide-menu-wrapper .slide-menu-panel a {
+  color: #ccc;
+  text-decoration: underline;
+}
+
+.slide-menu-wrapper .slide-menu-panel a:hover {
+  color: white;
+}
+
+.slide-menu-wrapper .slide-menu-item a {
+  text-decoration: none;
+}
+
+.slide-menu-wrapper .slide-menu-custom-panel {
+  width: calc(100% - 20px);
+  padding-left: 10px;
+  padding-right: 10px;
+}
+
+.slide-menu-wrapper .slide-menu-custom-panel .slide-menu-items {
+  width: calc(100% + 20px);
+  margin-left: -10px;
+  margin-right: 10px;
+}
+
+/*
+ * Theme and Transitions buttons
+ */
+
+.slide-menu-wrapper div[data-panel='Themes'] li,
+.slide-menu-wrapper div[data-panel='Transitions'] li {
+  display: block;
+  text-align: left;
+  cursor: pointer;
+  color: #848484;
+}
+
+/*
+ * Menu controls
+ */
+.reveal .slide-menu-button {
+  position: fixed;
+  left: 30px;
+  bottom: 30px;
+  z-index: 30;
+  font-size: 24px;
+}
+
+/*
+ * Menu overlay
+ */
+
+.slide-menu-wrapper .slide-menu-overlay {
+  position: fixed;
+  z-index: 199;
+  top: 0;
+  left: 0;
+  overflow: hidden;
+  width: 0;
+  height: 0;
+  background-color: #000;
+  opacity: 0;
+  transition: opacity 0.3s, width 0s 0.3s, height 0s 0.3s;
+}
+
+.slide-menu-wrapper .slide-menu-overlay.active {
+  width: 100%;
+  height: 100%;
+  opacity: 0.7;
+  transition: opacity 0.3s;
+}
+
+/*
+ * Hide menu for pdf printing
+ */
+body.print-pdf .slide-menu-wrapper .slide-menu,
+body.print-pdf .reveal .slide-menu-button,
+body.print-pdf .slide-menu-wrapper .slide-menu-overlay {
+  display: none;
+}
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/menu.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/menu.js
new file mode 100644
index 0000000..5369df3
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/menu.js
@@ -0,0 +1 @@
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";e.panel.innerHTML=t};r.custom.forEach((function(e,t,n){var r=k("div",{"data-panel":"Custom"+t,class:"slide-menu-panel slide-menu-custom-panel"});e.content?(r.innerHTML=e.content,C(r)):e.src&&function(e,t){var n=new XMLHttpRequest;n.panel=e,n.arguments=Array.prototype.slice.call(arguments,2),n.onload=h,n.onerror=E,n.open("get",t,!0),n.send(null)}(r,e.src),u.appendChild(r)}))}if(r.themes){var P=k("div",{class:"slide-menu-panel","data-panel":"Themes"});u.appendChild(P);var M=k("ul",{class:"slide-menu-items"});P.appendChild(M),r.themes.forEach((function(e,t){var n={class:"slide-menu-item","data-item":""+(t+1)};e.theme&&(n["data-theme"]=e.theme),e.highlightTheme&&(n["data-highlight-theme"]=e.highlightTheme);var r=k("li",n,e.name);M.appendChild(r),r.onclick=x}))}if(r.transitions){P=k("div",{class:"slide-menu-panel","data-panel":"Transitions"});u.appendChild(P);M=k("ul",{class:"slide-menu-items"});P.appendChild(M),r.transitions.forEach((function(e,t){var n=k("li",{class:"slide-menu-item","data-transition":e.toLowerCase(),"data-item":""+(t+1)},e);M.appendChild(n),n.onclick=x}))}if(r.openButton){var R=k("div",{class:"slide-menu-button"}),j=k("a",{href:"#"});j.appendChild(k("i",{class:"fas fa-bars"})),R.appendChild(j),O(".reveal").appendChild(R),R.onclick=v}if(r.openSlideNumber)O("div.slide-number").onclick=v;A(".slide-menu-panel .slide-menu-items li").forEach((function(e){e.addEventListener("mouseenter",o)}))}if(r.keyboard){if(document.addEventListener("keydown",m,!1),window.addEventListener("message",(function(e){var t;try{t=JSON.parse(e.data)}catch(e){}t&&"triggerKey"===t.method&&m({keyCode:t.args[0],stopImmediatePropagation:function(){}})})),n.keyboardCondition&&"function"==typeof n.keyboardCondition){var N=n.keyboardCondition;n.keyboardCondition=function(e){return N(e)&&(!b()||77==e.keyCode)}}else n.keyboardCondition=function(e){return!b()||77==e.keyCode};t.addKeyBinding({keyCode:77,key:"M",description:"Toggle menu"},y)}r.openOnInit&&v(),a=!0}function O(e,t){return t||(t=document),t.querySelector(e)}function A(e,t){return t||(t=document),Array.prototype.slice.call(t.querySelectorAll(e))}function k(e,t,n){var r=document.createElement(e);return t&&Object.getOwnPropertyNames(t).forEach((function(e){r.setAttribute(e,t[e])})),n&&(r.innerHTML=n),r}function I(e,t){var n=O("link#"+e),r=n.parentElement,i=n.nextElementSibling;n.remove();var a=n.cloneNode();a.setAttribute("href",t),a.onload=function(){L()},r.insertBefore(a,i)}function P(e,t,n){n.call()}function M(){var e,a,o,s=!i||i>=9;t.isSpeakerNotes()&&window.location.search.endsWith("controls=false")&&(s=!1),s&&(r.delayInit||C(),e="menu-ready",(o=document.createEvent("HTMLEvents",1,2)).initEvent(e,!0,!0),function(e,t){for(var n in t)e[n]=t[n]}(o,a),document.querySelector(".reveal").dispatchEvent(o),n.postMessageEvents&&window.parent!==window.self&&window.parent.postMessage(JSON.stringify({namespace:"reveal",eventName:e,state:t.getState()}),"*"))}return{id:"menu",init:function(e){o(n=(t=e).getConfig()),P(r.path+"menu.css","stylesheet",(function(){void 0===r.loadIcons||r.loadIcons?P(r.path+"font-awesome/css/all.css","stylesheet",M):M()}))},toggle:y,openMenu:v,closeMenu:g,openPanel:S,isOpen:b,initialiseMenu:C,isMenuInitialised:function(){return a}}}}));
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/plugin.yml b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/plugin.yml
new file mode 100644
index 0000000..3f4b90a
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/plugin.yml
@@ -0,0 +1,9 @@
+name: RevealMenu
+script: [menu.js, quarto-menu.js]
+stylesheet: [menu.css, quarto-menu.css]
+config:
+  menu:
+    side: "left"
+    useTextContentForMissingTitles: true
+    markers: false
+    loadIcons: false
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/quarto-menu.css b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/quarto-menu.css
new file mode 100644
index 0000000..eec145c
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/quarto-menu.css
@@ -0,0 +1,68 @@
+.slide-menu-wrapper .slide-tool-item {
+  display: block;
+  text-align: left;
+  padding: 10px 18px;
+  color: #aaa;
+  cursor: pointer;
+  border-top: solid 1px #555;
+}
+
+.slide-menu-wrapper .slide-tool-item a {
+  text-decoration: none;
+}
+
+.slide-menu-wrapper .slide-tool-item kbd {
+  font-family: monospace;
+  margin-right: 10px;
+  padding: 3px 8px;
+  color: inherit;
+  border: 1px solid;
+  border-radius: 5px;
+  border-color: #555;
+}
+
+.slide-menu-wrapper .slide-menu-toolbar > li.active-toolbar-button {
+  text-decoration: none;
+}
+
+.reveal .slide-menu-button {
+  left: 8px;
+  bottom: 8px;
+}
+
+.reveal .slide-menu-button .fas::before,
+.reveal .slide-chalkboard-buttons .fas::before,
+.slide-menu-wrapper .slide-menu-toolbar .fas::before {
+  display: inline-block;
+  height: 2.2rem;
+  width: 2.2rem;
+  content: "";
+  vertical-align: -0.125em;
+  background-repeat: no-repeat;
+  background-size: 2.2rem 2.2rem;
+}
+
+.reveal .slide-chalkboard-buttons .fas::before {
+  height: 1.45rem;
+  width: 1.45rem;
+  background-size: 1.45rem 1.45rem;
+  vertical-align: 0.1em;
+}
+
+.slide-menu-wrapper .slide-menu-toolbar .fas::before {
+  height: 1.8rem;
+  width: 1.8rem;
+  background-size: 1.8rem 1.8rem;
+}
+
+.slide-menu-wrapper .slide-menu-toolbar .fa-images::before {
+  background-image: url('data:image/svg+xml,');
+}
+
+.slide-menu-wrapper .slide-menu-toolbar .fa-gear::before {
+  background-image: url('data:image/svg+xml,');
+}
+
+.slide-menu-wrapper .slide-menu-toolbar .fa-times::before {
+  background-image: url('data:image/svg+xml,');
+}
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/quarto-menu.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/quarto-menu.js
new file mode 100644
index 0000000..9674053
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/reveal-menu/quarto-menu.js
@@ -0,0 +1,43 @@
+window.revealMenuToolHandler = function (handler) {
+  return function (event) {
+    event.preventDefault();
+    handler();
+    Reveal.getPlugin("menu").closeMenu();
+  };
+};
+
+window.RevealMenuToolHandlers = {
+  fullscreen: revealMenuToolHandler(function () {
+    const element = document.documentElement;
+    const requestMethod =
+      element.requestFullscreen ||
+      element.webkitRequestFullscreen ||
+      element.webkitRequestFullScreen ||
+      element.mozRequestFullScreen ||
+      element.msRequestFullscreen;
+    if (requestMethod) {
+      requestMethod.apply(element);
+    }
+  }),
+  speakerMode: revealMenuToolHandler(function () {
+    Reveal.getPlugin("notes").open();
+  }),
+  keyboardHelp: revealMenuToolHandler(function () {
+    Reveal.toggleHelp(true);
+  }),
+  overview: revealMenuToolHandler(function () {
+    Reveal.toggleOverview(true);
+  }),
+  toggleChalkboard: revealMenuToolHandler(function () {
+    RevealChalkboard.toggleChalkboard();
+  }),
+  toggleNotesCanvas: revealMenuToolHandler(function () {
+    RevealChalkboard.toggleNotesCanvas();
+  }),
+  downloadDrawings: revealMenuToolHandler(function () {
+    RevealChalkboard.download();
+  }),
+  togglePdfExport: revealMenuToolHandler(function () {
+    PdfExport.togglePdfExport();
+  }),
+};
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/search/plugin.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/search/plugin.js
new file mode 100644
index 0000000..5d09ce6
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/search/plugin.js
@@ -0,0 +1,243 @@
+/*!
+ * Handles finding a text string anywhere in the slides and showing the next occurrence to the user
+ * by navigatating to that slide and highlighting it.
+ *
+ * @author Jon Snyder , February 2013
+ */
+
+const Plugin = () => {
+
+	// The reveal.js instance this plugin is attached to
+	let deck;
+
+	let searchElement;
+	let searchButton;
+	let searchInput;
+
+	let matchedSlides;
+	let currentMatchedIndex;
+	let searchboxDirty;
+	let hilitor;
+
+	function render() {
+
+		searchElement = document.createElement( 'div' );
+		searchElement.classList.add( 'searchbox' );
+		searchElement.style.position = 'absolute';
+		searchElement.style.top = '10px';
+		searchElement.style.right = '10px';
+		searchElement.style.zIndex = 10;
+
+		//embedded base64 search icon Designed by Sketchdock - http://www.sketchdock.com/:
+		searchElement.innerHTML = `
+		`;
+
+		searchInput = searchElement.querySelector( '.searchinput' );
+		searchInput.style.width = '240px';
+		searchInput.style.fontSize = '14px';
+		searchInput.style.padding = '4px 6px';
+		searchInput.style.color = '#000';
+		searchInput.style.background = '#fff';
+		searchInput.style.borderRadius = '2px';
+		searchInput.style.border = '0';
+		searchInput.style.outline = '0';
+		searchInput.style.boxShadow = '0 2px 18px rgba(0, 0, 0, 0.2)';
+		searchInput.style['-webkit-appearance']  = 'none';
+
+		deck.getRevealElement().appendChild( searchElement );
+
+		// searchButton.addEventListener( 'click', function(event) {
+		// 	doSearch();
+		// }, false );
+
+		searchInput.addEventListener( 'keyup', function( event ) {
+			switch (event.keyCode) {
+				case 13:
+					event.preventDefault();
+					doSearch();
+					searchboxDirty = false;
+					break;
+				default:
+					searchboxDirty = true;
+			}
+		}, false );
+
+		closeSearch();
+
+	}
+
+	function openSearch() {
+		if( !searchElement ) render();
+
+		searchElement.style.display = 'inline';
+		searchInput.focus();
+		searchInput.select();
+	}
+
+	function closeSearch() {
+		if( !searchElement ) render();
+
+		searchElement.style.display = 'none';
+		if(hilitor) hilitor.remove();
+	}
+
+	function toggleSearch() {
+		if( !searchElement ) render();
+
+		if (searchElement.style.display !== 'inline') {
+			openSearch();
+		}
+		else {
+			closeSearch();
+		}
+	}
+
+	function doSearch() {
+		//if there's been a change in the search term, perform a new search:
+		if (searchboxDirty) {
+			var searchstring = searchInput.value;
+
+			if (searchstring === '') {
+				if(hilitor) hilitor.remove();
+				matchedSlides = null;
+			}
+			else {
+				//find the keyword amongst the slides
+				hilitor = new Hilitor("slidecontent");
+				matchedSlides = hilitor.apply(searchstring);
+				currentMatchedIndex = 0;
+			}
+		}
+
+		if (matchedSlides) {
+			//navigate to the next slide that has the keyword, wrapping to the first if necessary
+			if (matchedSlides.length && (matchedSlides.length <= currentMatchedIndex)) {
+				currentMatchedIndex = 0;
+			}
+			if (matchedSlides.length > currentMatchedIndex) {
+				deck.slide(matchedSlides[currentMatchedIndex].h, matchedSlides[currentMatchedIndex].v);
+				currentMatchedIndex++;
+			}
+		}
+	}
+
+	// Original JavaScript code by Chirp Internet: www.chirp.com.au
+	// Please acknowledge use of this code by including this header.
+	// 2/2013 jon: modified regex to display any match, not restricted to word boundaries.
+	function Hilitor(id, tag) {
+
+		var targetNode = document.getElementById(id) || document.body;
+		var hiliteTag = tag || "EM";
+		var skipTags = new RegExp("^(?:" + hiliteTag + "|SCRIPT|FORM)$");
+		var colors = ["#ff6", "#a0ffff", "#9f9", "#f99", "#f6f"];
+		var wordColor = [];
+		var colorIdx = 0;
+		var matchRegex = "";
+		var matchingSlides = [];
+
+		this.setRegex = function(input)
+		{
+			input = input.replace(/^[^\w]+|[^\w]+$/g, "").replace(/[^\w'-]+/g, "|");
+			matchRegex = new RegExp("(" + input + ")","i");
+		}
+
+		this.getRegex = function()
+		{
+			return matchRegex.toString().replace(/^\/\\b\(|\)\\b\/i$/g, "").replace(/\|/g, " ");
+		}
+
+		// recursively apply word highlighting
+		this.hiliteWords = function(node)
+		{
+			if(node == undefined || !node) return;
+			if(!matchRegex) return;
+			if(skipTags.test(node.nodeName)) return;
+
+			if(node.hasChildNodes()) {
+				for(var i=0; i < node.childNodes.length; i++)
+					this.hiliteWords(node.childNodes[i]);
+			}
+			if(node.nodeType == 3) { // NODE_TEXT
+				var nv, regs;
+				if((nv = node.nodeValue) && (regs = matchRegex.exec(nv))) {
+					//find the slide's section element and save it in our list of matching slides
+					var secnode = node;
+					while (secnode != null && secnode.nodeName != 'SECTION') {
+						secnode = secnode.parentNode;
+					}
+
+					var slideIndex = deck.getIndices(secnode);
+					var slidelen = matchingSlides.length;
+					var alreadyAdded = false;
+					for (var i=0; i < slidelen; i++) {
+						if ( (matchingSlides[i].h === slideIndex.h) && (matchingSlides[i].v === slideIndex.v) ) {
+							alreadyAdded = true;
+						}
+					}
+					if (! alreadyAdded) {
+						matchingSlides.push(slideIndex);
+					}
+
+					if(!wordColor[regs[0].toLowerCase()]) {
+						wordColor[regs[0].toLowerCase()] = colors[colorIdx++ % colors.length];
+					}
+
+					var match = document.createElement(hiliteTag);
+					match.appendChild(document.createTextNode(regs[0]));
+					match.style.backgroundColor = wordColor[regs[0].toLowerCase()];
+					match.style.fontStyle = "inherit";
+					match.style.color = "#000";
+
+					var after = node.splitText(regs.index);
+					after.nodeValue = after.nodeValue.substring(regs[0].length);
+					node.parentNode.insertBefore(match, after);
+				}
+			}
+		};
+
+		// remove highlighting
+		this.remove = function()
+		{
+			var arr = document.getElementsByTagName(hiliteTag);
+			var el;
+			while(arr.length && (el = arr[0])) {
+				el.parentNode.replaceChild(el.firstChild, el);
+			}
+		};
+
+		// start highlighting at target node
+		this.apply = function(input)
+		{
+			if(input == undefined || !input) return;
+			this.remove();
+			this.setRegex(input);
+			this.hiliteWords(targetNode);
+			return matchingSlides;
+		};
+
+	}
+
+	return {
+
+		id: 'search',
+
+		init: reveal => {
+
+			deck = reveal;
+			deck.registerKeyboardShortcut( 'CTRL + Shift + F', 'Search' );
+
+			document.addEventListener( 'keydown', function( event ) {
+				if( event.key == "F" && (event.ctrlKey || event.metaKey) ) { //Control+Shift+f
+					event.preventDefault();
+					toggleSearch();
+				}
+			}, false );
+
+		},
+
+		open: openSearch
+
+	}
+};
+
+export default Plugin;
\ No newline at end of file
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/search/search.esm.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/search/search.esm.js
new file mode 100644
index 0000000..b401a70
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/search/search.esm.js
@@ -0,0 +1,7 @@
+var e="undefined"!=typeof globalThis?globalThis:"undefined"!=typeof window?window:"undefined"!=typeof global?global:"undefined"!=typeof self?self:{},t=function(e){try{return!!e()}catch(e){return!0}},n=!t((function(){return 7!=Object.defineProperty({},1,{get:function(){return 7}})[1]})),r=function(e){return e&&e.Math==Math&&e},o=r("object"==typeof globalThis&&globalThis)||r("object"==typeof window&&window)||r("object"==typeof self&&self)||r("object"==typeof e&&e)||function(){return this}()||Function("return this")(),i=t,c=/#|\.prototype\./,a=function(e,t){var n=l[u(e)];return n==s||n!=f&&("function"==typeof t?i(t):!!t)},u=a.normalize=function(e){return String(e).replace(c,".").toLowerCase()},l=a.data={},f=a.NATIVE="N",s=a.POLYFILL="P",p=a,g=function(e){return"object"==typeof e?null!==e:"function"==typeof e},d=g,h=function(e){if(!d(e))throw TypeError(String(e)+" is not an object");return e},y=g,v=h,x=function(e){if(!y(e)&&null!==e)throw TypeError("Can't set "+String(e)+" as a 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+/*!
+	 * Handles finding a text string anywhere in the slides and showing the next occurrence to the user
+	 * by navigatating to that slide and highlighting it.
+	 *
+	 * @author Jon Snyder , February 2013
+	 */;return function(){var e,t,n,r,o,i,c;function a(){(t=document.createElement("div")).classList.add("searchbox"),t.style.position="absolute",t.style.top="10px",t.style.right="10px",t.style.zIndex=10,t.innerHTML='\n\t\t',(n=t.querySelector(".searchinput")).style.width="240px",n.style.fontSize="14px",n.style.padding="4px 6px",n.style.color="#000",n.style.background="#fff",n.style.borderRadius="2px",n.style.border="0",n.style.outline="0",n.style.boxShadow="0 2px 18px rgba(0, 0, 0, 0.2)",n.style["-webkit-appearance"]="none",e.getRevealElement().appendChild(t),n.addEventListener("keyup",(function(t){switch(t.keyCode){case 13:t.preventDefault(),function(){if(i){var t=n.value;""===t?(c&&c.remove(),r=null):(c=new f("slidecontent"),r=c.apply(t),o=0)}r&&(r.length&&r.length<=o&&(o=0),r.length>o&&(e.slide(r[o].h,r[o].v),o++))}(),i=!1;break;default:i=!0}}),!1),l()}function u(){t||a(),t.style.display="inline",n.focus(),n.select()}function l(){t||a(),t.style.display="none",c&&c.remove()}function f(t,n){var r=document.getElementById(t)||document.body,o=n||"EM",i=new RegExp("^(?:"+o+"|SCRIPT|FORM)$"),c=["#ff6","#a0ffff","#9f9","#f99","#f6f"],a=[],u=0,l="",f=[];this.setRegex=function(e){e=e.replace(/^[^\w]+|[^\w]+$/g,"").replace(/[^\w'-]+/g,"|"),l=new RegExp("("+e+")","i")},this.getRegex=function(){return l.toString().replace(/^\/\\b\(|\)\\b\/i$/g,"").replace(/\|/g," ")},this.hiliteWords=function(t){if(null!=t&&t&&l&&!i.test(t.nodeName)){if(t.hasChildNodes())for(var n=0;n {
+
+		zoom.reset();
+
+	}
+
+};
+
+export default () => Plugin;
+
+/*!
+ * zoom.js 0.3 (modified for use with reveal.js)
+ * http://lab.hakim.se/zoom-js
+ * MIT licensed
+ *
+ * Copyright (C) 2011-2014 Hakim El Hattab, http://hakim.se
+ */
+var zoom = (function(){
+
+	// The current zoom level (scale)
+	var level = 1;
+
+	// The current mouse position, used for panning
+	var mouseX = 0,
+		mouseY = 0;
+
+	// Timeout before pan is activated
+	var panEngageTimeout = -1,
+		panUpdateInterval = -1;
+
+	// Check for transform support so that we can fallback otherwise
+	var supportsTransforms = 	'transform' in document.body.style;
+
+	if( supportsTransforms ) {
+		// The easing that will be applied when we zoom in/out
+		document.body.style.transition = 'transform 0.8s ease';
+	}
+
+	// Zoom out if the user hits escape
+	document.addEventListener( 'keyup', function( event ) {
+		if( level !== 1 && event.keyCode === 27 ) {
+			zoom.out();
+		}
+	} );
+
+	// Monitor mouse movement for panning
+	document.addEventListener( 'mousemove', function( event ) {
+		if( level !== 1 ) {
+			mouseX = event.clientX;
+			mouseY = event.clientY;
+		}
+	} );
+
+	/**
+	 * Applies the CSS required to zoom in, prefers the use of CSS3
+	 * transforms but falls back on zoom for IE.
+	 *
+	 * @param {Object} rect
+	 * @param {Number} scale
+	 */
+	function magnify( rect, scale ) {
+
+		var scrollOffset = getScrollOffset();
+
+		// Ensure a width/height is set
+		rect.width = rect.width || 1;
+		rect.height = rect.height || 1;
+
+		// Center the rect within the zoomed viewport
+		rect.x -= ( window.innerWidth - ( rect.width * scale ) ) / 2;
+		rect.y -= ( window.innerHeight - ( rect.height * scale ) ) / 2;
+
+		if( supportsTransforms ) {
+			// Reset
+			if( scale === 1 ) {
+				document.body.style.transform = '';
+			}
+			// Scale
+			else {
+				var origin = scrollOffset.x +'px '+ scrollOffset.y +'px',
+					transform = 'translate('+ -rect.x +'px,'+ -rect.y +'px) scale('+ scale +')';
+
+				document.body.style.transformOrigin = origin;
+				document.body.style.transform = transform;
+			}
+		}
+		else {
+			// Reset
+			if( scale === 1 ) {
+				document.body.style.position = '';
+				document.body.style.left = '';
+				document.body.style.top = '';
+				document.body.style.width = '';
+				document.body.style.height = '';
+				document.body.style.zoom = '';
+			}
+			// Scale
+			else {
+				document.body.style.position = 'relative';
+				document.body.style.left = ( - ( scrollOffset.x + rect.x ) / scale ) + 'px';
+				document.body.style.top = ( - ( scrollOffset.y + rect.y ) / scale ) + 'px';
+				document.body.style.width = ( scale * 100 ) + '%';
+				document.body.style.height = ( scale * 100 ) + '%';
+				document.body.style.zoom = scale;
+			}
+		}
+
+		level = scale;
+
+		if( document.documentElement.classList ) {
+			if( level !== 1 ) {
+				document.documentElement.classList.add( 'zoomed' );
+			}
+			else {
+				document.documentElement.classList.remove( 'zoomed' );
+			}
+		}
+	}
+
+	/**
+	 * Pan the document when the mosue cursor approaches the edges
+	 * of the window.
+	 */
+	function pan() {
+		var range = 0.12,
+			rangeX = window.innerWidth * range,
+			rangeY = window.innerHeight * range,
+			scrollOffset = getScrollOffset();
+
+		// Up
+		if( mouseY < rangeY ) {
+			window.scroll( scrollOffset.x, scrollOffset.y - ( 1 - ( mouseY / rangeY ) ) * ( 14 / level ) );
+		}
+		// Down
+		else if( mouseY > window.innerHeight - rangeY ) {
+			window.scroll( scrollOffset.x, scrollOffset.y + ( 1 - ( window.innerHeight - mouseY ) / rangeY ) * ( 14 / level ) );
+		}
+
+		// Left
+		if( mouseX < rangeX ) {
+			window.scroll( scrollOffset.x - ( 1 - ( mouseX / rangeX ) ) * ( 14 / level ), scrollOffset.y );
+		}
+		// Right
+		else if( mouseX > window.innerWidth - rangeX ) {
+			window.scroll( scrollOffset.x + ( 1 - ( window.innerWidth - mouseX ) / rangeX ) * ( 14 / level ), scrollOffset.y );
+		}
+	}
+
+	function getScrollOffset() {
+		return {
+			x: window.scrollX !== undefined ? window.scrollX : window.pageXOffset,
+			y: window.scrollY !== undefined ? window.scrollY : window.pageYOffset
+		}
+	}
+
+	return {
+		/**
+		 * Zooms in on either a rectangle or HTML element.
+		 *
+		 * @param {Object} options
+		 *   - element: HTML element to zoom in on
+		 *   OR
+		 *   - x/y: coordinates in non-transformed space to zoom in on
+		 *   - width/height: the portion of the screen to zoom in on
+		 *   - scale: can be used instead of width/height to explicitly set scale
+		 */
+		to: function( options ) {
+
+			// Due to an implementation limitation we can't zoom in
+			// to another element without zooming out first
+			if( level !== 1 ) {
+				zoom.out();
+			}
+			else {
+				options.x = options.x || 0;
+				options.y = options.y || 0;
+
+				// If an element is set, that takes precedence
+				if( !!options.element ) {
+					// Space around the zoomed in element to leave on screen
+					var padding = 20;
+					var bounds = options.element.getBoundingClientRect();
+
+					options.x = bounds.left - padding;
+					options.y = bounds.top - padding;
+					options.width = bounds.width + ( padding * 2 );
+					options.height = bounds.height + ( padding * 2 );
+				}
+
+				// If width/height values are set, calculate scale from those values
+				if( options.width !== undefined && options.height !== undefined ) {
+					options.scale = Math.max( Math.min( window.innerWidth / options.width, window.innerHeight / options.height ), 1 );
+				}
+
+				if( options.scale > 1 ) {
+					options.x *= options.scale;
+					options.y *= options.scale;
+
+					magnify( options, options.scale );
+
+					if( options.pan !== false ) {
+
+						// Wait with engaging panning as it may conflict with the
+						// zoom transition
+						panEngageTimeout = setTimeout( function() {
+							panUpdateInterval = setInterval( pan, 1000 / 60 );
+						}, 800 );
+
+					}
+				}
+			}
+		},
+
+		/**
+		 * Resets the document zoom state to its default.
+		 */
+		out: function() {
+			clearTimeout( panEngageTimeout );
+			clearInterval( panUpdateInterval );
+
+			magnify( { x: 0, y: 0 }, 1 );
+
+			level = 1;
+		},
+
+		// Alias
+		magnify: function( options ) { this.to( options ) },
+		reset: function() { this.out() },
+
+		zoomLevel: function() {
+			return level;
+		}
+	}
+
+})();
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/zoom/zoom.esm.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/zoom/zoom.esm.js
new file mode 100644
index 0000000..c0e8d7b
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/zoom/zoom.esm.js
@@ -0,0 +1,4 @@
+/*!
+ * reveal.js Zoom plugin
+ */
+var e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(n){var o=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:o)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;n[i]&&!e.isOverview()&&(n.preventDefault(),t.to({x:n.clientX,y:n.clientY,scale:d,pan:!1}))}))},destroy:function(){t.reset()}},t=function(){var e=1,n=0,o=0,i=-1,d=-1,l="transform"in document.body.style;function s(t,n){var o=r();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*n)/2,t.y-=(window.innerHeight-t.height*n)/2,l)if(1===n)document.body.style.transform="";else{var i=o.x+"px "+o.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+n+")";document.body.style.transformOrigin=i,document.body.style.transform=d}else 1===n?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(o.x+t.x)/n+"px",document.body.style.top=-(o.y+t.y)/n+"px",document.body.style.width=100*n+"%",document.body.style.height=100*n+"%",document.body.style.zoom=n);e=n,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function c(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=r();owindow.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-o)/i)*(14/e)),nwindow.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-n)/t)*(14/e),d.y)}function r(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return l&&(document.body.style.transition="transform 0.8s ease"),document.addEventListener("keyup",(function(n){1!==e&&27===n.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(n=t.clientX,o=t.clientY)})),{to:function(n){if(1!==e)t.out();else{if(n.x=n.x||0,n.y=n.y||0,n.element){var o=n.element.getBoundingClientRect();n.x=o.left-20,n.y=o.top-20,n.width=o.width+40,n.height=o.height+40}void 0!==n.width&&void 0!==n.height&&(n.scale=Math.max(Math.min(window.innerWidth/n.width,window.innerHeight/n.height),1)),n.scale>1&&(n.x*=n.scale,n.y*=n.scale,s(n,n.scale),!1!==n.pan&&(i=setTimeout((function(){d=setInterval(c,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),s({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();export default function(){return e}
diff --git a/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/zoom/zoom.js b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/zoom/zoom.js
new file mode 100644
index 0000000..b52804d
--- /dev/null
+++ b/doc/talks/2024-simep/pres/site_libs/revealjs/plugin/zoom/zoom.js
@@ -0,0 +1,4 @@
+!function(e,t){"object"==typeof exports&&"undefined"!=typeof module?module.exports=t():"function"==typeof define&&define.amd?define(t):(e="undefined"!=typeof globalThis?globalThis:e||self).RevealZoom=t()}(this,(function(){"use strict";
+/*!
+	 * reveal.js Zoom plugin
+	 */var e={id:"zoom",init:function(e){e.getRevealElement().addEventListener("mousedown",(function(o){var n=/Linux/.test(window.navigator.platform)?"ctrl":"alt",i=(e.getConfig().zoomKey?e.getConfig().zoomKey:n)+"Key",d=e.getConfig().zoomLevel?e.getConfig().zoomLevel:2;o[i]&&!e.isOverview()&&(o.preventDefault(),t.to({x:o.clientX,y:o.clientY,scale:d,pan:!1}))}))},destroy:function(){t.reset()}},t=function(){var e=1,o=0,n=0,i=-1,d=-1,l="transform"in document.body.style;function s(t,o){var n=r();if(t.width=t.width||1,t.height=t.height||1,t.x-=(window.innerWidth-t.width*o)/2,t.y-=(window.innerHeight-t.height*o)/2,l)if(1===o)document.body.style.transform="";else{var i=n.x+"px "+n.y+"px",d="translate("+-t.x+"px,"+-t.y+"px) scale("+o+")";document.body.style.transformOrigin=i,document.body.style.transform=d}else 1===o?(document.body.style.position="",document.body.style.left="",document.body.style.top="",document.body.style.width="",document.body.style.height="",document.body.style.zoom=""):(document.body.style.position="relative",document.body.style.left=-(n.x+t.x)/o+"px",document.body.style.top=-(n.y+t.y)/o+"px",document.body.style.width=100*o+"%",document.body.style.height=100*o+"%",document.body.style.zoom=o);e=o,document.documentElement.classList&&(1!==e?document.documentElement.classList.add("zoomed"):document.documentElement.classList.remove("zoomed"))}function c(){var t=.12*window.innerWidth,i=.12*window.innerHeight,d=r();nwindow.innerHeight-i&&window.scroll(d.x,d.y+(1-(window.innerHeight-n)/i)*(14/e)),owindow.innerWidth-t&&window.scroll(d.x+(1-(window.innerWidth-o)/t)*(14/e),d.y)}function r(){return{x:void 0!==window.scrollX?window.scrollX:window.pageXOffset,y:void 0!==window.scrollY?window.scrollY:window.pageYOffset}}return l&&(document.body.style.transition="transform 0.8s ease"),document.addEventListener("keyup",(function(o){1!==e&&27===o.keyCode&&t.out()})),document.addEventListener("mousemove",(function(t){1!==e&&(o=t.clientX,n=t.clientY)})),{to:function(o){if(1!==e)t.out();else{if(o.x=o.x||0,o.y=o.y||0,o.element){var n=o.element.getBoundingClientRect();o.x=n.left-20,o.y=n.top-20,o.width=n.width+40,o.height=n.height+40}void 0!==o.width&&void 0!==o.height&&(o.scale=Math.max(Math.min(window.innerWidth/o.width,window.innerHeight/o.height),1)),o.scale>1&&(o.x*=o.scale,o.y*=o.scale,s(o,o.scale),!1!==o.pan&&(i=setTimeout((function(){d=setInterval(c,1e3/60)}),800)))}},out:function(){clearTimeout(i),clearInterval(d),s({x:0,y:0},1),e=1},magnify:function(e){this.to(e)},reset:function(){this.out()},zoomLevel:function(){return e}}}();return function(){return e}}));