diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..2ca3795
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,40 @@
+# Automatically build the project and run any configured tests for every push
+# and submitted pull request. This can help catch issues that only occur on
+# certain platforms or Java versions, and provides a first line of defence
+# against bad commits.
+
+name: build
+on: [pull_request, push]
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        # Use these Java versions
+        java: [
+          17,    # Current Java LTS & minimum supported by Minecraft
+        ]
+        # and run on both Linux and Windows
+        os: [ubuntu-22.04, windows-2022]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: checkout repository
+        uses: actions/checkout@v3
+      - name: validate gradle wrapper
+        uses: gradle/wrapper-validation-action@v1
+      - name: setup jdk ${{ matrix.java }}
+        uses: actions/setup-java@v3
+        with:
+          java-version: ${{ matrix.java }}
+          distribution: 'microsoft'
+      - name: make gradle wrapper executable
+        if: ${{ runner.os != 'Windows' }}
+        run: chmod +x ./gradlew
+      - name: build
+        run: ./gradlew build
+      - name: capture build artifacts
+        if: ${{ runner.os == 'Linux' && matrix.java == '17' }} # Only upload artifacts built from latest java on one OS
+        uses: actions/upload-artifact@v3
+        with:
+          name: Artifacts
+          path: build/libs/
\ No newline at end of file
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c476faf
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,40 @@
+# gradle
+
+.gradle/
+build/
+out/
+classes/
+
+# eclipse
+
+*.launch
+
+# idea
+
+.idea/
+*.iml
+*.ipr
+*.iws
+
+# vscode
+
+.settings/
+.vscode/
+bin/
+.classpath
+.project
+
+# macos
+
+*.DS_Store
+
+# fabric
+
+run/
+
+# java
+
+hs_err_*.log
+replay_*.log
+*.hprof
+*.jfr
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..1625c17
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,121 @@
+Creative Commons Legal Code
+
+CC0 1.0 Universal
+
+    CREATIVE COMMONS CORPORATION IS NOT A LAW FIRM AND DOES NOT PROVIDE
+    LEGAL SERVICES. DISTRIBUTION OF THIS DOCUMENT DOES NOT CREATE AN
+    ATTORNEY-CLIENT RELATIONSHIP. CREATIVE COMMONS PROVIDES THIS
+    INFORMATION ON AN "AS-IS" BASIS. CREATIVE COMMONS MAKES NO WARRANTIES
+    REGARDING THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS
+    PROVIDED HEREUNDER, AND DISCLAIMS LIABILITY FOR DAMAGES RESULTING FROM
+    THE USE OF THIS DOCUMENT OR THE INFORMATION OR WORKS PROVIDED
+    HEREUNDER.
+
+Statement of Purpose
+
+The laws of most jurisdictions throughout the world automatically confer
+exclusive Copyright and Related Rights (defined below) upon the creator
+and subsequent owner(s) (each and all, an "owner") of an original work of
+authorship and/or a database (each, a "Work").
+
+Certain owners wish to permanently relinquish those rights to a Work for
+the purpose of contributing to a commons of creative, cultural and
+scientific works ("Commons") that the public can reliably and without fear
+of later claims of infringement build upon, modify, incorporate in other
+works, reuse and redistribute as freely as possible in any form whatsoever
+and for any purposes, including without limitation commercial purposes.
+These owners may contribute to the Commons to promote the ideal of a free
+culture and the further production of creative, cultural and scientific
+works, or to gain reputation or greater distribution for their Work in
+part through the use and efforts of others.
+
+For these and/or other purposes and motivations, and without any
+expectation of additional consideration or compensation, the person
+associating CC0 with a Work (the "Affirmer"), to the extent that he or she
+is an owner of Copyright and Related Rights in the Work, voluntarily
+elects to apply CC0 to the Work and publicly distribute the Work under its
+terms, with knowledge of his or her Copyright and Related Rights in the
+Work and the meaning and intended legal effect of CC0 on those rights.
+
+1. Copyright and Related Rights. A Work made available under CC0 may be
+protected by copyright and related or neighboring rights ("Copyright and
+Related Rights"). Copyright and Related Rights include, but are not
+limited to, the following:
+
+  i. the right to reproduce, adapt, distribute, perform, display,
+     communicate, and translate a Work;
+ ii. moral rights retained by the original author(s) and/or performer(s);
+iii. publicity and privacy rights pertaining to a person's image or
+     likeness depicted in a Work;
+ iv. rights protecting against unfair competition in regards to a Work,
+     subject to the limitations in paragraph 4(a), below;
+  v. rights protecting the extraction, dissemination, use and reuse of data
+     in a Work;
+ vi. database rights (such as those arising under Directive 96/9/EC of the
+     European Parliament and of the Council of 11 March 1996 on the legal
+     protection of databases, and under any national implementation
+     thereof, including any amended or successor version of such
+     directive); and
+vii. other similar, equivalent or corresponding rights throughout the
+     world based on applicable law or treaty, and any national
+     implementations thereof.
+
+2. Waiver. To the greatest extent permitted by, but not in contravention
+of, applicable law, Affirmer hereby overtly, fully, permanently,
+irrevocably and unconditionally waives, abandons, and surrenders all of
+Affirmer's Copyright and Related Rights and associated claims and causes
+of action, whether now known or unknown (including existing as well as
+future claims and causes of action), in the Work (i) in all territories
+worldwide, (ii) for the maximum duration provided by applicable law or
+treaty (including future time extensions), (iii) in any current or future
+medium and for any number of copies, and (iv) for any purpose whatsoever,
+including without limitation commercial, advertising or promotional
+purposes (the "Waiver"). Affirmer makes the Waiver for the benefit of each
+member of the public at large and to the detriment of Affirmer's heirs and
+successors, fully intending that such Waiver shall not be subject to
+revocation, rescission, cancellation, termination, or any other legal or
+equitable action to disrupt the quiet enjoyment of the Work by the public
+as contemplated by Affirmer's express Statement of Purpose.
+
+3. Public License Fallback. Should any part of the Waiver for any reason
+be judged legally invalid or ineffective under applicable law, then the
+Waiver shall be preserved to the maximum extent permitted taking into
+account Affirmer's express Statement of Purpose. In addition, to the
+extent the Waiver is so judged Affirmer hereby grants to each affected
+person a royalty-free, non transferable, non sublicensable, non exclusive,
+irrevocable and unconditional license to exercise Affirmer's Copyright and
+Related Rights in the Work (i) in all territories worldwide, (ii) for the
+maximum duration provided by applicable law or treaty (including future
+time extensions), (iii) in any current or future medium and for any number
+of copies, and (iv) for any purpose whatsoever, including without
+limitation commercial, advertising or promotional purposes (the
+"License"). The License shall be deemed effective as of the date CC0 was
+applied by Affirmer to the Work. Should any part of the License for any
+reason be judged legally invalid or ineffective under applicable law, such
+partial invalidity or ineffectiveness shall not invalidate the remainder
+of the License, and in such case Affirmer hereby affirms that he or she
+will not (i) exercise any of his or her remaining Copyright and Related
+Rights in the Work or (ii) assert any associated claims and causes of
+action with respect to the Work, in either case contrary to Affirmer's
+express Statement of Purpose.
+
+4. Limitations and Disclaimers.
+
+ a. No trademark or patent rights held by Affirmer are waived, abandoned,
+    surrendered, licensed or otherwise affected by this document.
+ b. Affirmer offers the Work as-is and makes no representations or
+    warranties of any kind concerning the Work, express, implied,
+    statutory or otherwise, including without limitation warranties of
+    title, merchantability, fitness for a particular purpose, non
+    infringement, or the absence of latent or other defects, accuracy, or
+    the present or absence of errors, whether or not discoverable, all to
+    the greatest extent permissible under applicable law.
+ c. Affirmer disclaims responsibility for clearing rights of other persons
+    that may apply to the Work or any use thereof, including without
+    limitation any person's Copyright and Related Rights in the Work.
+    Further, Affirmer disclaims responsibility for obtaining any necessary
+    consents, permissions or other rights required for any use of the
+    Work.
+ d. Affirmer understands and acknowledges that Creative Commons is not a
+    party to this document and has no duty or obligation with respect to
+    this CC0 or use of the Work.
\ No newline at end of file
diff --git a/build.gradle b/build.gradle
new file mode 100644
index 0000000..756f261
--- /dev/null
+++ b/build.gradle
@@ -0,0 +1,101 @@
+plugins {
+	id 'fabric-loom' version '1.1-SNAPSHOT'
+	id 'maven-publish'
+	id "org.jetbrains.kotlin.jvm" version "1.8.20"
+	id 'org.jetbrains.kotlin.plugin.serialization' version '1.5.10'
+}
+
+sourceCompatibility = JavaVersion.VERSION_17
+targetCompatibility = JavaVersion.VERSION_17
+
+archivesBaseName = project.archives_base_name
+version = project.mod_version
+group = project.maven_group
+
+repositories {
+	// Add repositories to retrieve artifacts from in here.
+	// You should only use this when depending on other mods because
+	// Loom adds the essential maven repositories to download Minecraft and libraries from automatically.
+	// See https://docs.gradle.org/current/userguide/declaring_repositories.html
+	// for more information about repositories.
+	maven { url 'https://maven.nucleoid.xyz' }
+}
+
+loom {
+    splitEnvironmentSourceSets()
+
+    mods {
+        modid {
+            sourceSet sourceSets.main
+            sourceSet sourceSets.client
+        }
+    }
+
+}
+
+dependencies {
+	// To change the versions see the gradle.properties file
+	minecraft "com.mojang:minecraft:${project.minecraft_version}"
+	mappings "net.fabricmc:yarn:${project.yarn_mappings}:v2"
+	modImplementation "net.fabricmc:fabric-loader:${project.loader_version}"
+
+	// Fabric API. This is technically optional, but you probably want it anyway.
+	modImplementation "net.fabricmc.fabric-api:fabric-api:${project.fabric_version}"
+	modImplementation "net.fabricmc:fabric-language-kotlin:${project.fabric_kotlin_version}"
+	// Uncomment the following line to enable the deprecated Fabric API modules. 
+	// These are included in the Fabric API production distribution and allow you to update your mod to the latest modules at a later more convenient time.
+	// modImplementation "net.fabricmc.fabric-api:fabric-api-deprecated:${project.fabric_version}"
+
+	implementation 'com.google.code.gson:gson:2.8.9'
+	implementation 'org.jetbrains.kotlinx:kotlinx-serialization-json:1.3.0'
+
+	compileOnly 'net.luckperms:api:5.4'
+}
+
+processResources {
+	inputs.property "version", project.version
+
+	filesMatching("fabric.mod.json") {
+		expand "version": project.version
+	}
+}
+
+tasks.withType(JavaCompile).configureEach {
+	it.options.release = 17
+}
+
+tasks.withType(org.jetbrains.kotlin.gradle.tasks.KotlinCompile).all {
+	kotlinOptions {
+		jvmTarget = 17
+	}
+}
+
+java {
+	// Loom will automatically attach sourcesJar to a RemapSourcesJar task and to the "build" task
+	// if it is present.
+	// If you remove this line, sources will not be generated.
+	withSourcesJar()
+}
+
+jar {
+	from("LICENSE") {
+		rename { "${it}_${project.archivesBaseName}"}
+	}
+}
+
+// configure the maven publication
+publishing {
+	publications {
+		mavenJava(MavenPublication) {
+			from components.java
+		}
+	}
+
+	// See https://docs.gradle.org/current/userguide/publishing_maven.html for information on how to set up publishing.
+	repositories {
+		// Add repositories to publish to here.
+		// Notice: This block does NOT have the same function as the block in the top level.
+		// The repositories here will be used for publishing your artifact, not for
+		// retrieving dependencies.
+	}
+}
\ No newline at end of file
diff --git a/gradle.properties b/gradle.properties
new file mode 100644
index 0000000..87199d9
--- /dev/null
+++ b/gradle.properties
@@ -0,0 +1,18 @@
+# Done to increase the memory available to gradle.
+org.gradle.jvmargs=-Xmx1G
+org.gradle.parallel=true
+
+# Fabric Properties
+# check these on https://fabricmc.net/develop
+minecraft_version=1.19.2
+yarn_mappings=1.19.2+build.28
+loader_version=0.14.19
+fabric_kotlin_version=1.9.3+kotlin.1.8.20
+
+# Mod Properties
+mod_version=1.0.0
+maven_group=tech.sethi.pebbles.backpack
+archives_base_name=pebbles-backpack
+
+# Dependencies
+fabric_version=0.76.0+1.19.2
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..943f0cb
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..f398c33
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-bin.zip
+networkTimeout=10000
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100644
index 0000000..65dcd68
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,244 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/HEAD/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+# This is normally unused
+# shellcheck disable=SC2034
+APP_BASE_NAME=${0##*/}
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC3045 
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Stop when "xargs" is not available.
+if ! command -v xargs >/dev/null 2>&1
+then
+    die "xargs is not available"
+fi
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..93e3f59
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,92 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%"=="" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if %ERRORLEVEL% equ 0 goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if %ERRORLEVEL% equ 0 goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+set EXIT_CODE=%ERRORLEVEL%
+if %EXIT_CODE% equ 0 set EXIT_CODE=1
+if not ""=="%GRADLE_EXIT_CONSOLE%" exit %EXIT_CODE%
+exit /b %EXIT_CODE%
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle b/settings.gradle
new file mode 100644
index 0000000..56266b4
--- /dev/null
+++ b/settings.gradle
@@ -0,0 +1,10 @@
+pluginManagement {
+    repositories {
+        maven {
+            name = 'Fabric'
+            url = 'https://maven.fabricmc.net/'
+        }
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
\ No newline at end of file
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackCommands.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackCommands.kt
new file mode 100644
index 0000000..b12748a
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackCommands.kt
@@ -0,0 +1,291 @@
+package tech.sethi.pebbles.backpack
+
+import com.google.gson.GsonBuilder
+import com.google.gson.JsonParser
+import com.mojang.brigadier.CommandDispatcher
+import com.mojang.brigadier.arguments.IntegerArgumentType
+import com.mojang.brigadier.arguments.StringArgumentType
+import net.luckperms.api.LuckPerms
+import net.luckperms.api.LuckPermsProvider
+import net.minecraft.command.CommandSource
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.item.ItemStack
+import net.minecraft.item.Items
+import net.minecraft.nbt.NbtHelper
+import net.minecraft.screen.SimpleNamedScreenHandlerFactory
+import net.minecraft.server.MinecraftServer
+import net.minecraft.server.command.CommandManager
+import net.minecraft.server.command.ServerCommandSource
+import net.minecraft.text.Text
+import net.minecraft.util.Formatting
+import java.io.File
+import net.minecraft.util.WorldSavePath
+
+
+object BackpackCommands {
+    val backpacks = mutableMapOf<Int, BackpackInventory>()
+
+    fun register(dispatcher: CommandDispatcher<ServerCommandSource>) {
+        val padminCommand = CommandManager.literal("padmin").requires { source ->
+            val player = source.player as? PlayerEntity
+            player != null && (source.hasPermissionLevel(2) || isLuckPermsPresent() && getLuckPermsApi()?.userManager?.getUser(
+                player.uuid
+            )!!.cachedData.permissionData.checkPermission("pebbles.admin").asBoolean()) || source.entity == null
+        }
+
+        val createBackpackCommand = CommandManager.literal("bp").then(CommandManager.literal("create")
+            .then(CommandManager.argument("tier", StringArgumentType.word()).suggests { _, builder ->
+                builder.suggest("leather").suggest("copper").suggest("iron").suggest("gold").suggest("diamond")
+                    .suggest("netherite").buildFuture()
+            }.then(CommandManager.argument("playerName", StringArgumentType.string()).suggests { context, builder ->
+                CommandSource.suggestMatching(
+                    context.source.server.playerManager.playerList.map { it.name.string }, builder
+                )
+            }.executes { ctx ->
+                val nextId = (backpacks.keys.maxOrNull() ?: 0) + 1
+                val playerName = StringArgumentType.getString(ctx, "playerName")
+                val playerEntity = ctx.source.server.playerManager.getPlayer(playerName)
+
+                if (playerEntity == null) {
+                    ctx.source.sendError(Text.literal("Player '$playerName' not found."))
+                    return@executes 0
+                }
+
+                val tier = StringArgumentType.getString(ctx, "tier")
+                val size = when (tier) {
+                    "leather" -> 9
+                    "copper" -> 18
+                    "iron" -> 27
+                    "gold" -> 36
+                    "diamond" -> 45
+                    "netherite" -> 54
+                    else -> 9
+                }
+                val skullStack = ItemStack(Items.PLAYER_HEAD)
+
+                val backpackNbt = NbtHelper.fromNbtProviderString(getBackpackNbt(tier))
+                skullStack.nbt = backpackNbt
+
+                val skullMeta = skullStack.orCreateNbt
+                skullMeta.putInt("BackpackID", nextId)
+
+                playerEntity.giveItemStack(skullStack)
+
+                val backpackInventory = BackpackInventory(size)
+                backpackInventory.playerName = playerName // Set the playerName property
+                backpacks[nextId] = backpackInventory
+
+                ctx.source.sendFeedback(
+                    Text.literal("Backpack created with ID: $nextId for $playerName"), false
+                )
+
+                val backpacksFile = getBackpacksFile(ctx.source.server)
+                val player = ctx.source.server.playerManager.getPlayer(playerName)
+                if (player != null) {
+                    saveBackpacksData(backpacksFile)
+                }
+
+                return@executes 1
+            })
+            )
+        )
+
+        val getBackpackCommand = CommandManager.literal("bp").then(
+            CommandManager.literal("get")
+                .then(CommandManager.argument("id", IntegerArgumentType.integer(1)).suggests { _, builder ->
+                    CommandSource.suggestMatching(backpacks.keys.map { it.toString() }, builder)
+                }.executes { ctx ->
+                    val id = IntegerArgumentType.getInteger(ctx, "id")
+                    val playerEntity = ctx.source.player as? PlayerEntity
+
+                    //get all backpack IDs
+                    val backpackIds = backpacks.keys
+                    if (!backpackIds.contains(id)) {
+                        ctx.source.sendError(Text.literal("Backpack with ID $id not found."))
+                        return@executes 0
+                    }
+
+                    if (playerEntity == null) {
+                        ctx.source.sendError(Text.literal("Invalid player"))
+                        return@executes 0
+                    }
+
+                    val tier = when (backpacks[id]?.getRows()) {
+                        1 -> "leather"
+                        2 -> "copper"
+                        3 -> "iron"
+                        4 -> "gold"
+                        5 -> "diamond"
+                        6 -> "netherite"
+                        else -> "leather"
+                    }
+                    val size = when (tier) {
+                        "leather" -> 9
+                        "copper" -> 18
+                        "iron" -> 27
+                        "gold" -> 36
+                        "diamond" -> 45
+                        "netherite" -> 54
+                        else -> 9
+                    }
+
+                    val skullStack = ItemStack(Items.PLAYER_HEAD)
+
+                    val backpackNbt = NbtHelper.fromNbtProviderString(getBackpackNbt(tier))
+                    skullStack.nbt = backpackNbt
+
+                    val skullMeta = skullStack.orCreateNbt
+                    skullMeta.putInt("BackpackID", id)
+
+                    playerEntity.giveItemStack(skullStack)
+
+                    val backpackInventory = BackpackInventory(size)
+                    backpacks[id] = backpackInventory
+                    ctx.source.sendFeedback(
+                        Text.literal("Backpack retrieved with: $id"), false
+                    )
+
+                    return@executes 1
+                })
+        )
+
+
+
+        padminCommand.then(getBackpackCommand)
+
+
+        val openBackpackCommand = CommandManager.literal("bp").then(CommandManager.argument(
+            "id", IntegerArgumentType.integer(1)
+        ).executes { ctx ->
+            val id = IntegerArgumentType.getInteger(ctx, "id")
+            if (openBackpack(ctx.source.player!!, id)) {
+                return@executes 1
+            } else {
+                ctx.source.sendError(Text.literal("Backpack with ID $id not found."))
+                return@executes 0
+            }
+        })
+
+        padminCommand.then(createBackpackCommand)
+        padminCommand.then(openBackpackCommand)
+
+        dispatcher.register(padminCommand)
+    }
+
+    private fun getBackpackTier(rowSize: Int): String {
+        return when (rowSize) {
+            1 -> "leather"
+            2 -> "copper"
+            3 -> "iron"
+            4 -> "gold"
+            5 -> "diamond"
+            6 -> "netherite"
+            else -> "leather"
+        }
+    }
+
+
+    fun getBackpacksFile(server: MinecraftServer): File {
+        val worldDir = server.getSavePath(WorldSavePath.ROOT).toFile()
+        return File(worldDir, "pebbles_backpacks.json")
+    }
+
+    private val gson = GsonBuilder().registerTypeAdapter(ItemStack::class.java, ItemStackTypeAdapter()).create()
+
+    fun saveBackpacksData(file: File) {
+        val backpacksData = backpacks.map { (id, backpackInventory) ->
+            backpackInventory.toData(id)
+        }
+
+        file.writer().use { writer ->
+            gson.toJson(backpacksData, writer)
+        }
+    }
+
+
+    fun loadBackpacksData(file: File): Map<Int, BackpackInventory> {
+        val backpackInventories = mutableMapOf<Int, BackpackInventory>()
+
+        file.reader().use { reader ->
+            val jsonElement = JsonParser.parseReader(reader)
+            val backpackDataArray = jsonElement.asJsonArray
+
+            for (backpackDataJson in backpackDataArray) {
+                val backpackData = gson.fromJson(backpackDataJson, BackpackData::class.java)
+                val backpackInventory = BackpackInventory(backpackData.size)
+
+                // Load the ItemStacks into the BackpackInventory
+                backpackData.items.forEachIndexed { index, itemStack ->
+                    backpackInventory.setStack(index, itemStack)
+                }
+
+                backpackInventories[backpackData.id] = backpackInventory
+            }
+        }
+
+        // Debug print
+        println("Loaded backpacks data: $backpackInventories")
+
+        return backpackInventories
+    }
+
+    fun openBackpack(player: PlayerEntity, id: Int): Boolean {
+        val backpack = backpacks[id]
+        val backpackTier = backpack?.getRows()
+        // get names based on tier
+        val backpackName = when (backpackTier) {
+            1 -> "Leather"
+            2 -> "Copper"
+            3 -> "Iron"
+            4 -> "Gold"
+            5 -> "Diamond"
+            6 -> "Netherite"
+            else -> "Leather"
+        }
+        return if (backpack != null) {
+            val rows = backpack.getRows()
+            player.openHandledScreen(
+                SimpleNamedScreenHandlerFactory(
+                    { syncId, inv, _ ->
+                        BackpackScreenHandler(syncId, inv, backpack, rows)
+                    }, Text.literal("$backpackName Backpack").formatted(Formatting.DARK_RED)
+                )
+            )
+            true
+        } else {
+            false
+        }
+    }
+
+
+    private fun isLuckPermsPresent(): Boolean {
+        return try {
+            Class.forName("net.luckperms.api.LuckPerms")
+            true
+        } catch (e: ClassNotFoundException) {
+            false
+        }
+    }
+
+    private fun getLuckPermsApi(): LuckPerms? {
+        return try {
+            LuckPermsProvider.get()
+        } catch (e: IllegalStateException) {
+            null
+        }
+    }
+
+
+    private fun getBackpackNbt(tier: String): String {
+        return when (tier) {
+            "leather" -> "{display:{Name:\"{\\\"text\\\":\\\"Leather Backpack\\\"}\"},SkullOwner:{Id:[I;-1865738760,-355187999,-1172757398,374987400],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvNDBiMWI1MzY3NDkxODM5MWEwN2E5ZDAwNTgyYzA1OGY5MjgwYmM1MjZhNzE2Yzc5NmVlNWVhYjRiZTEwYTc2MCJ9fX0=\"}]}}}"
+            "copper" -> "{display:{Name:\"{\\\"text\\\":\\\"Copper Backpack\\\"}\"},SkullOwner:{Id:[I;1162937850,1879723887,-1267568232,-499049394],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMWU1ODNjYjc3MTU4MWQzYjI3YjIzZjYxN2M3YjhhNDNkY2Q3MjIwNDQ3ZmY5NWZmMTk2MDQxNGQyMzUwYmRiOSJ9fX0=\"}]}}}"
+            "iron" -> "{display:{Name:\"{\\\"text\\\":\\\"Iron Backpack\\\"}\"},SkullOwner:{Id:[I;1804696949,1735083680,-1716683629,-1934495154],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZGRhZjhlZGMzMmFmYjQ2MWFlZTA3MTMwNTgwMjMxMDFmOTI0ZTJhN2VmYTg4M2RhZTcyZDVkNTdkNGMwNTNkNyJ9fX0=\"}]}}}"
+            "gold" -> "{display:{Name:\"{\\\"text\\\":\\\"Gold Backpack\\\"}\"},SkullOwner:{Id:[I;1780200479,157369315,-1565115920,-961015289],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvY2Y4NzUyNWFkODRlZmQxNjgwNmEyNmNhMDE5ODRiMjgwZTViYTY0MDM1MDViNmY2Yzk4MDNjMjQ2NDJhYmZjNyJ9fX0=\"}]}}}"
+            "diamond" -> "{display:{Name:\"{\\\"text\\\":\\\"Diamond Backpack\\\"}\"},SkullOwner:{Id:[I;-104595003,-2052699552,-1909633784,2079891327],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMTBkMWIwNzMyYmY3YTcwZGU0ZGMwMTU1OWNjNWM5ODExMDY4ZWY3YjYwOTUwMTAzODI3MDlmOTQwOTM5MjdmNiJ9fX0=\"}]}}}"
+            "netherite" -> "{display:{Name:\"{\\\"text\\\":\\\"Netherite Backpack\\\"}\"},SkullOwner:{Id:[I;-814574281,-1699395768,-1993160043,-1564669232],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvODM1ZDdjYzA5ZmZmYmNhM2UxYzAwZDQyMWFmYWE0MzJjZjcxZmNiMDk1NTVmNTQ1MjNlNTIyMGQxYWYwZjk3ZCJ9fX0=\"}]}}}"
+            "gucci" -> "{display:{Name:\"{\\\"text\\\":\\\"Gucci Backpack\\\"}\"},SkullOwner:{Id:[I;945208130,1552895596,-2057951394,2057894273],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvZTIwOGY1ODk3ZjEyZTVmY2IyZThiNDM4MWY1NDQ1YTc3MTFlODQ3MjFlYzRhN2ZjMTAxZDViNzQwYjg2ZjhmYSJ9fX0=\"}]}}}"
+            else -> "{display:{Name:\"{\\\"text\\\":\\\"Bag\\\"}\"},SkullOwner:{Id:[I;-1980288287,-640760459,800809409,-1213206538],Properties:{textures:[{Value:\"eyJ0ZXh0dXJlcyI6eyJTS0lOIjp7InVybCI6Imh0dHA6Ly90ZXh0dXJlcy5taW5lY3JhZnQubmV0L3RleHR1cmUvMzViMTE2ZGM3NjlkNmQ1NzI2ZjEyYTI0ZjNmMTg2ZjgzOTQyNzMyMWU4MmY0MTM4Nzc1YTRjNDAzNjdhNDkifX19\"}]}}}"
+        }
+    }
+}
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackData.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackData.kt
new file mode 100644
index 0000000..9b3b600
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackData.kt
@@ -0,0 +1,13 @@
+package tech.sethi.pebbles.backpack
+
+import net.minecraft.item.ItemStack
+
+data class BackpackData(val id: Int, val size: Int, val items: List<ItemStack>, var playerName: String? = null)
+
+fun BackpackInventory.toData(id: Int): BackpackData {
+    val items = mutableListOf<ItemStack>()
+    for (i in 0 until this.size()) {
+        items.add(this.getStack(i))
+    }
+    return BackpackData(id, this.size(), items, this.playerName)
+}
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackInventory.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackInventory.kt
new file mode 100644
index 0000000..335f33f
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackInventory.kt
@@ -0,0 +1,12 @@
+package tech.sethi.pebbles.backpack
+
+import net.minecraft.inventory.SimpleInventory
+
+class BackpackInventory(size: Int) : SimpleInventory(size) {
+
+    var playerName: String? = null
+
+    fun getRows(): Int {
+        return this.size() / 9
+    }
+}
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackScreenHandler.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackScreenHandler.kt
new file mode 100644
index 0000000..8c561ae
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/BackpackScreenHandler.kt
@@ -0,0 +1,167 @@
+package tech.sethi.pebbles.backpack
+
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.entity.player.PlayerInventory
+import net.minecraft.inventory.Inventory
+import net.minecraft.item.ItemStack
+import net.minecraft.item.Items
+import net.minecraft.screen.ScreenHandler
+import net.minecraft.screen.ScreenHandlerType
+import net.minecraft.screen.slot.Slot
+import net.minecraft.screen.slot.SlotActionType
+import net.minecraft.server.MinecraftServer
+import tech.sethi.pebbles.backpack.BackpackCommands.getBackpacksFile
+import tech.sethi.pebbles.backpack.BackpackCommands.saveBackpacksData
+import java.util.concurrent.Executors
+import java.util.concurrent.TimeUnit
+import java.util.concurrent.atomic.AtomicBoolean
+
+
+class BackpackScreenHandler(
+    syncId: Int,
+    private val playerInventory: PlayerInventory,
+    private val backpackInventory: BackpackInventory,
+    rows: Int
+) : ScreenHandler(getScreenHandlerTypeForRows(rows), syncId) {
+
+    companion object {
+        fun getScreenHandlerTypeForRows(rows: Int): ScreenHandlerType<*> {
+            return when (rows) {
+                2 -> ScreenHandlerType.GENERIC_9X2
+                3 -> ScreenHandlerType.GENERIC_9X3
+                4 -> ScreenHandlerType.GENERIC_9X4
+                5 -> ScreenHandlerType.GENERIC_9X5
+                6 -> ScreenHandlerType.GENERIC_9X6
+                else -> ScreenHandlerType.GENERIC_3X3
+            }
+        }
+
+        private val saveExecutor = Executors.newScheduledThreadPool(1)
+
+    }
+
+    private val saveScheduled = AtomicBoolean(false)
+
+    init {
+        // Backpack slots
+        for (m in 0 until rows) {
+            for (l in 0..8) {
+                this.addSlot(Slot(backpackInventory, l + m * 9, 8 + l * 18, 18 + m * 18))
+            }
+        }
+
+        // Player inventory slots
+        val playerInventoryYOffset = 18 + (rows - 1) * 18 + 12
+        for (m in 0..2) {
+            for (l in 0..8) {
+                this.addSlot(Slot(playerInventory, l + m * 9 + 9, 8 + l * 18, playerInventoryYOffset + m * 18))
+            }
+        }
+
+        // Player hotbar slots
+        for (l in 0..8) {
+            this.addSlot(Slot(playerInventory, l, 8 + l * 18, playerInventoryYOffset + 58))
+        }
+    }
+
+    override fun transferSlot(player: PlayerEntity?, index: Int): ItemStack {
+        var itemStack = ItemStack.EMPTY
+        val slot = this.slots[index]
+        if (slot.hasStack()) {
+            val itemStack2 = slot.stack
+            itemStack = itemStack2.copy()
+            if (index < this.backpackInventory.size()) {
+                if (!this.insertItem(itemStack2, this.backpackInventory.size(), this.slots.size, true)) {
+                    return ItemStack.EMPTY
+                }
+            } else if (!this.insertItem(itemStack2, 0, this.backpackInventory.size(), false)) {
+                return ItemStack.EMPTY
+            }
+
+            if (itemStack2.isEmpty) {
+                slot.stack = ItemStack.EMPTY
+            } else {
+                slot.markDirty()
+            }
+        }
+
+        if (player != null) {
+            if (!player.world.isClient) {
+                val backpacksFile = getBackpacksFile(player.server as MinecraftServer)
+                saveBackpacksData(backpacksFile)
+            }
+        }
+
+        return itemStack
+    }
+
+    override fun insertItem(stack: ItemStack, startIndex: Int, endIndex: Int, fromLast: Boolean): Boolean {
+        if (isBackpack(stack)) {
+            return false // Do not insert the item if it's a backpack
+        }
+        return super.insertItem(stack, startIndex, endIndex, fromLast)
+    }
+
+    override fun canUse(player: PlayerEntity): Boolean {
+        return this.backpackInventory.canPlayerUse(player)
+    }
+
+    private fun isBackpack(itemStack: ItemStack): Boolean {
+        return itemStack.item == Items.PLAYER_HEAD && itemStack.nbt?.contains("BackpackID") == true
+    }
+
+    override fun onContentChanged(inventory: Inventory?) {
+        val player = playerInventory.player
+        this.backpackInventory.markDirty()
+        super.onContentChanged(inventory)
+        if (!player.world.isClient) {
+            if (!saveScheduled.get()) {
+                saveScheduled.set(true)
+                saveExecutor.schedule({
+                    saveBackpackData(player)
+                    saveScheduled.set(false)
+                }, 20, TimeUnit.SECONDS)
+            }
+        }
+    }
+
+    override fun close(player: PlayerEntity) {
+        saveScheduled.set(false)
+        super.close(player)
+        saveBackpackData(player)
+    }
+
+
+    override fun onSlotClick(slotIndex: Int, button: Int, actionType: SlotActionType?, player: PlayerEntity?) {
+        if (slotIndex < 0) {
+            return
+        }
+        val stack = this.slots[slotIndex].stack
+        if (isBackpack(stack)) {
+            return // Do not insert the item if it's a backpack
+        }
+
+        this.backpackInventory.markDirty()
+        super.onSlotClick(slotIndex, button, actionType, player)
+
+        if (player != null) {
+            if (!player.world.isClient) {
+                if (!saveScheduled.get()) {
+                    saveScheduled.set(true)
+                    saveExecutor.schedule({
+                        saveBackpackData(player)
+                        saveScheduled.set(false)
+                    }, 20, TimeUnit.SECONDS)
+                }
+            }
+        }
+    }
+
+
+    private fun saveBackpackData(player: PlayerEntity) {
+        if (!player.world.isClient) {
+            val backpacksFile = getBackpacksFile(player.server as MinecraftServer)
+            saveBackpacksData(backpacksFile)
+        }
+    }
+}
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/ItemStackTypeAdapter.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/ItemStackTypeAdapter.kt
new file mode 100644
index 0000000..118edf8
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/ItemStackTypeAdapter.kt
@@ -0,0 +1,43 @@
+package tech.sethi.pebbles.backpack
+
+import com.google.gson.*
+import net.minecraft.item.Item
+import net.minecraft.item.ItemStack
+import net.minecraft.item.Items
+import net.minecraft.nbt.NbtCompound
+import net.minecraft.nbt.StringNbtReader
+import net.minecraft.util.Identifier
+import net.minecraft.util.registry.Registry
+import java.lang.reflect.Type
+
+class ItemStackTypeAdapter : JsonSerializer<ItemStack>, JsonDeserializer<ItemStack> {
+    override fun serialize(src: ItemStack, typeOfSrc: Type, context: JsonSerializationContext): JsonElement {
+        val jsonObject = JsonObject()
+        jsonObject.addProperty("item", Registry.ITEM.getId(src.item).toString())
+        jsonObject.addProperty("count", src.count)
+
+        if (src.hasNbt()) {
+            jsonObject.addProperty("nbt", src.nbt.toString())
+        }
+
+        return jsonObject
+    }
+
+    @Throws(JsonParseException::class)
+    override fun deserialize(json: JsonElement, typeOfT: Type, context: JsonDeserializationContext): ItemStack {
+        val jsonObject = json.asJsonObject
+        val item = Registry.ITEM.get(Identifier(jsonObject["item"].asString))
+        val count = jsonObject["count"].asInt
+
+        val stack = ItemStack(item, count)
+
+        if (jsonObject.has("nbt")) {
+            val nbtString = jsonObject["nbt"].asString
+            val nbt = StringNbtReader.parse(nbtString)
+            stack.nbt = nbt
+        }
+
+        return stack
+    }
+}
+
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/JsonUtil.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/JsonUtil.kt
new file mode 100644
index 0000000..6004621
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/JsonUtil.kt
@@ -0,0 +1,17 @@
+package tech.sethi.pebbles.backpack
+
+import kotlinx.serialization.decodeFromString
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+
+object JsonUtil {
+    val json = Json { encodeDefaults = false }
+
+    inline fun <reified T> toJson(obj: T): String {
+        return json.encodeToString(obj)
+    }
+
+    inline fun <reified T> fromJson(jsonStr: String): T {
+        return json.decodeFromString(jsonStr)
+    }
+}
diff --git a/src/main/kotlin/tech/sethi/pebbles/backpack/PebblesBackpackInitializer.kt b/src/main/kotlin/tech/sethi/pebbles/backpack/PebblesBackpackInitializer.kt
new file mode 100644
index 0000000..2470a4c
--- /dev/null
+++ b/src/main/kotlin/tech/sethi/pebbles/backpack/PebblesBackpackInitializer.kt
@@ -0,0 +1,95 @@
+package tech.sethi.pebbles.backpack
+
+import net.fabricmc.api.ModInitializer
+import net.fabricmc.fabric.api.event.lifecycle.v1.ServerLifecycleEvents
+import net.fabricmc.fabric.api.event.player.UseBlockCallback
+import net.fabricmc.fabric.api.event.player.UseItemCallback
+import net.minecraft.entity.player.PlayerEntity
+import net.minecraft.item.ItemStack
+import net.minecraft.util.*
+import net.minecraft.util.registry.Registry
+import net.minecraft.world.World
+import org.slf4j.LoggerFactory
+import java.io.IOException
+
+class PebblesBackpackInitializer : ModInitializer {
+    private val logger = LoggerFactory.getLogger("pebbles-backpack")
+
+    override fun onInitialize() {
+        logger.info("Registering Pebble's Backpack Commands!")
+
+        ServerLifecycleEvents.SERVER_STARTED.register { server ->
+            BackpackCommands.register(server.commandManager.dispatcher)
+        }
+
+        ServerLifecycleEvents.SERVER_STARTING.register(ServerLifecycleEvents.ServerStarting { server ->
+            val backpacksFile = BackpackCommands.getBackpacksFile(server)
+            if (backpacksFile.exists()) {
+                BackpackCommands.backpacks.putAll(BackpackCommands.loadBackpacksData(backpacksFile))
+            } else {
+                try {
+                    backpacksFile.createNewFile()
+                } catch (e: IOException) {
+                    e.printStackTrace()
+                }
+            }
+        })
+
+
+        UseBlockCallback.EVENT.register(UseBlockCallback { player, world, hand, _ ->
+            if (world.isClient) {
+                return@UseBlockCallback ActionResult.PASS
+            }
+
+            val itemStack = player.getStackInHand(hand)
+
+            val skullItem = Registry.ITEM.get(Identifier("minecraft:player_head"))
+
+            if (itemStack.item != skullItem) {
+                return@UseBlockCallback ActionResult.PASS
+            }
+
+            // check if the head has nbt data "backpackID"
+            val backpackID = itemStack.nbt!!.getInt("BackpackID")
+
+            // check if the backpackID is in the backpacks map
+            val backpack = BackpackCommands.backpacks[backpackID]
+
+            if (backpack != null) {
+                // Open the backpack for the player
+                BackpackCommands.openBackpack(player, backpackID)
+                return@UseBlockCallback ActionResult.SUCCESS
+            }
+
+            return@UseBlockCallback ActionResult.PASS
+        })
+
+        // check if player right clicks with a backpack
+        val backpackInteraction = let@{ player: PlayerEntity, _: World, _: Hand, stack: ItemStack ->
+            val skullItem = Registry.ITEM.get(Identifier("minecraft:player_head"))
+
+            if (stack.item != skullItem) {
+                return@let TypedActionResult.pass(stack)
+            }
+
+            val backpackID = stack.nbt?.getInt("BackpackID") ?: return@let TypedActionResult.pass(stack)
+
+            val backpack = BackpackCommands.backpacks[backpackID]
+
+            if (backpack != null) {
+                BackpackCommands.openBackpack(player, backpackID)
+                return@let TypedActionResult.success(stack, true)
+            }
+
+            TypedActionResult.pass(stack)
+        }
+
+
+        UseItemCallback.EVENT.register(UseItemCallback { player, world, hand ->
+            backpackInteraction(player, world, hand, player.getStackInHand(hand))
+        })
+
+
+        logger.info("Pebble's Backpack loaded!")
+    }
+}
diff --git a/src/main/resources/assets/pebbles-backpack/icon.png b/src/main/resources/assets/pebbles-backpack/icon.png
new file mode 100644
index 0000000..047b91f
Binary files /dev/null and b/src/main/resources/assets/pebbles-backpack/icon.png differ
diff --git a/src/main/resources/fabric.mod.json b/src/main/resources/fabric.mod.json
new file mode 100644
index 0000000..6a9d9dc
--- /dev/null
+++ b/src/main/resources/fabric.mod.json
@@ -0,0 +1,34 @@
+{
+	"schemaVersion": 1,
+	"id": "pebbles-backpack",
+	"version": "${version}",
+	"name": "Pebble's Backpack",
+	"description": "Full server-sided fabric backpack mod for Fabric 1.19.2",
+	"authors": [
+		"navneetset"
+	],
+	"contact": {
+		"sources": "https://github.com/navneetset/pebbles-backpack"
+	},
+	"license": "CC0-1.0",
+	"icon": "assets/pebbles-backpack/icon.png",
+	"environment": "*",
+	"entrypoints": {
+		"main": [
+			{
+				"value": "tech.sethi.pebbles.backpack.PebblesBackpackInitializer",
+				"adapter": "kotlin"
+			}
+		]
+	},
+	"depends": {
+		"fabricloader": ">=0.13.3",
+		"minecraft": "~1.19.2",
+		"java": ">=17",
+		"fabric-api": "*",
+		"fabric-language-kotlin": ">=1.8.20"
+	},
+	"suggests": {
+		"another-mod": "*"
+	}
+}
\ No newline at end of file