diff --git a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/package.json b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/package.json
index c387b89e..1b767a71 100644
--- a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/package.json
+++ b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/package.json
@@ -36,7 +36,8 @@
 		"_build:dev:watch": "monorepo-script--build-typescript-package --watch --module=esm",
 		"dev": "run-s clean _build:dev:watch",
 
-		"demo": "node ./dist/src.es2023.esm/demo/index.js"
+		"demo": "node ./dist/src.es2023.esm/demo/index.js",
+		"demoh": "node ./dist/src.es2023.esm/hateoas/index.js"
 	},
 
 	"devDependencies": {
diff --git a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/demo/index.ts b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/demo/index.ts
index 47ca37a2..5f64a707 100644
--- a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/demo/index.ts
+++ b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/demo/index.ts
@@ -43,6 +43,7 @@ function loop() {
 	console.log('/////////////////////////////////////////////////')
 	// always first
 	const $doc = State.getꓽrecap(state.u_state) // TODO clarify recap/mode
+	console.log(prettifyꓽjson($doc))
 	console.log(to_terminal($doc))
 
 	console.log('/////////////////////////////////////////////////')
@@ -73,45 +74,7 @@ function loop() {
 }
 
 /////////////////////////////////////////////////
-/*
+
 loop()
 state = State.play(state)
 loop()
-*/
-/////////////////////////////////////////////////
-// https://github.com/kevinswiber/siren
-
-interface Link {
-	rel: string // https://www.iana.org/assignments/link-relations/link-relations.xhtml TODO array?
-
-	cta: string
-	href: string
-}
-
-interface Response {
-	data: {
-
-		$doc: RichText.Document
-
-	}
-
-	links: {
-		// self must be present
-
-
-		[rel: string]: Link
-	}
-}
-
-
-function HATEOASᐧGETꓽⳇmodeⳇ() {
-
-}
-
-function HATEOASᐧGET(link: string = '/'): Response {
-
-	switch (link) {
-		default:
-			throw new Error(`Unknown resource "${link}"!`)
-	}
-}
diff --git a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/hateoas/index.ts b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/hateoas/index.ts
new file mode 100644
index 00000000..d0c90d1a
--- /dev/null
+++ b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/hateoas/index.ts
@@ -0,0 +1,39 @@
+import { Immutable } from '@offirmo-private/state-utils'
+import { type Hyperlink } from '@offirmo-private/ts-types-web'
+import * as RichText from '@offirmo-private/rich-text-format'
+
+import to_terminal from '@offirmo-private/rich-text-format--to-terminal'
+
+import * as State from '@tbrpg/state'
+import * as RRT from '@tbrpg/ui--rich-text'
+
+import { prettifyꓽjson } from '../services/misc.js'
+
+/////////////////////////////////////////////////
+
+let state = State.create()
+// TODO reseed
+state = State.on_start_session(state, true)
+state = State.update_to_now(state)
+
+/////////////////////////////////////////////////
+
+function HATEOASᐧGET(state: Immutable<State.State>, link: Hyperlink['href'] = ''): RichText.Document {
+	console.log(`HATEOASᐧGET("${link}")`)
+
+//	const $doc = State.getꓽrecap(state.u_state) // TODO clarify recap/mode
+
+
+	switch (link) {
+		case '':
+			return State.getꓽrecap(state.u_state)
+		default:
+			throw new Error(`Unknown resource "${link}"!`)
+	}
+}
+
+console.log('/////////////////////////////////////////////////')
+let current_uri: Hyperlink['href'] = ''
+const $doc = HATEOASᐧGET(state, current_uri)
+console.log(prettifyꓽjson($doc))
+//console.log(to_terminal($doc))
diff --git a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/services/misc.ts b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/services/misc.ts
index 5932ca30..54c14b6c 100644
--- a/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/services/misc.ts
+++ b/stack--current/A-apps--core/the-boring-rpg/xx-sandbox/src/services/misc.ts
@@ -4,5 +4,9 @@ root_logger.setLevel('silly')
 
 
 import chalk from 'chalk'
-import { injectꓽlibꓽchalk } from '@offirmo-private/prettify-any'
+import { injectꓽlibꓽchalk, prettifyꓽjson } from '@offirmo-private/prettify-any'
 injectꓽlibꓽchalk(chalk)
+
+export {
+	prettifyꓽjson,
+}