diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 6d80cdd8..630083a0 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -13,10 +13,10 @@ jobs:
 
     steps:
       - uses: actions/checkout@v3
-      - name: Set up JDK 11
+      - name: Set up JDK 21
         uses: actions/setup-java@v3
         with:
-          java-version: '17'
+          java-version: '21'
           distribution: 'temurin'
       - name: Build with Gradle
         uses: gradle/gradle-build-action@v2.4.2
@@ -24,6 +24,6 @@ jobs:
           arguments: shadowJar
       - name: Upload jarfiles
         if: github.event_name != 'pull_request'
-        uses: actions/upload-artifact@v3
+        uses: actions/upload-artifact@v4
         with:
           path: plugin/build/libs/*.jar
diff --git a/api/build.gradle.kts b/api/build.gradle.kts
index 601cc03b..a8f0afb3 100644
--- a/api/build.gradle.kts
+++ b/api/build.gradle.kts
@@ -3,7 +3,7 @@ import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
 plugins {
     id("chatchat.base-conventions")
     id("chatchat.publish-conventions")
-    id("com.github.johnrengelman.shadow") version "7.1.2"
+    id("com.gradleup.shadow") version "8.3.5"
 }
 
 repositories {
diff --git a/build-logic/src/main/kotlin/chatchat.base-conventions.gradle.kts b/build-logic/src/main/kotlin/chatchat.base-conventions.gradle.kts
index b97e556d..2f0b84bd 100644
--- a/build-logic/src/main/kotlin/chatchat.base-conventions.gradle.kts
+++ b/build-logic/src/main/kotlin/chatchat.base-conventions.gradle.kts
@@ -4,12 +4,12 @@ plugins {
 
 repositories {
     mavenCentral()
-    maven("https://papermc.io/repo/repository/maven-public/")
+    maven("https://repo.papermc.io/repository/maven-public/")
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_11
-    targetCompatibility = JavaVersion.VERSION_11
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
     withSourcesJar()
     withJavadocJar()
 }
diff --git a/build-logic/src/main/kotlin/chatchat.parent-conventions.gradle.kts b/build-logic/src/main/kotlin/chatchat.parent-conventions.gradle.kts
index 408156c4..8d3362e7 100644
--- a/build-logic/src/main/kotlin/chatchat.parent-conventions.gradle.kts
+++ b/build-logic/src/main/kotlin/chatchat.parent-conventions.gradle.kts
@@ -7,6 +7,6 @@ repositories {
 }
 
 java {
-    sourceCompatibility = JavaVersion.VERSION_11
-    targetCompatibility = JavaVersion.VERSION_11
-}
\ No newline at end of file
+    sourceCompatibility = JavaVersion.VERSION_21
+    targetCompatibility = JavaVersion.VERSION_21
+}
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index 43afebf0..7745e73d 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,15 +1,15 @@
 [versions]
 # Minecraft
-spigot = "1.20.1-R0.1-SNAPSHOT"
+spigot = "1.21.4-R0.1-SNAPSHOT"
 
 # Adventure
 minimessage = "4.16.0"
-adventure-platform = "4.3.3-SNAPSHOT"
+adventure-platform = "4.3.4"
 
 # Other
 configurate = "4.1.2"
 cmds = "2.0.0-SNAPSHOT"
-papi = "2.11.1"
+papi = "2.11.6"
 towny = "0.98.1.3"
 discordsrv = "1.25.1"
 supervanish = "6.2.17"
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 41d9927a..a4b76b95 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 8049c684..9355b415 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.10-bin.zip
+networkTimeout=10000
+validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index 1b6c7873..f5feea6d 100755
--- a/gradlew
+++ b/gradlew
@@ -15,6 +15,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 #
+# SPDX-License-Identifier: Apache-2.0
+#
 
 ##############################################################################
 #
@@ -55,7 +57,7 @@
 #       Darwin, MinGW, and NonStop.
 #
 #   (3) This script is generated from the Groovy template
-#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       https://github.com/gradle/gradle/blob/HEAD/platforms/jvm/plugins-application/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
 #       within the Gradle project.
 #
 #       You can find Gradle at https://github.com/gradle/gradle/.
@@ -80,13 +82,12 @@ do
     esac
 done
 
-APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
-
-APP_NAME="Gradle"
+# This is normally unused
+# shellcheck disable=SC2034
 APP_BASE_NAME=${0##*/}
-
-# 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"'
+# Discard cd standard output in case $CDPATH is set (https://github.com/gradle/gradle/issues/25036)
+APP_HOME=$( cd -P "${APP_HOME:-./}" > /dev/null && printf '%s
+' "$PWD" ) || exit
 
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
@@ -133,22 +134,29 @@ 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.
+    if ! command -v java >/dev/null 2>&1
+    then
+        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
 fi
 
 # Increase the maximum file descriptors if we can.
 if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
+        # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
     case $MAX_FD in  #(
       '' | soft) :;; #(
       *)
+        # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
+        # shellcheck disable=SC2039,SC3045
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -193,11 +201,15 @@ if "$cygwin" || "$msys" ; then
     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.
+
+# 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"'
+
+# Collect all arguments for the java command:
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, JAVA_OPTS, and optsEnvironmentVar are not allowed to contain shell fragments,
+#     and any embedded shellness will be escaped.
+#   * For example: A user cannot expect ${Hostname} to be expanded, as it is an environment variable and will be
+#     treated as '${Hostname}' itself on the command line.
 
 set -- \
         "-Dorg.gradle.appname=$APP_BASE_NAME" \
@@ -205,6 +217,12 @@ set -- \
         org.gradle.wrapper.GradleWrapperMain \
         "$@"
 
+# 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.
diff --git a/gradlew.bat b/gradlew.bat
index 107acd32..9d21a218 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -13,8 +13,10 @@
 @rem See the License for the specific language governing permissions and
 @rem limitations under the License.
 @rem
+@rem SPDX-License-Identifier: Apache-2.0
+@rem
 
-@if "%DEBUG%" == "" @echo off
+@if "%DEBUG%"=="" @echo off
 @rem ##########################################################################
 @rem
 @rem  Gradle startup script for Windows
@@ -25,7 +27,8 @@
 if "%OS%"=="Windows_NT" setlocal
 
 set DIRNAME=%~dp0
-if "%DIRNAME%" == "" set DIRNAME=.
+if "%DIRNAME%"=="" set DIRNAME=.
+@rem This is normally unused
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
@@ -40,13 +43,13 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto execute
+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.
+echo. 1>&2
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -56,11 +59,11 @@ 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.
+echo. 1>&2
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 1>&2
+echo. 1>&2
+echo Please set the JAVA_HOME variable in your environment to match the 1>&2
+echo location of your Java installation. 1>&2
 
 goto fail
 
@@ -75,13 +78,15 @@ set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
 :end
 @rem End local scope for the variables with windows NT shell
-if "%ERRORLEVEL%"=="0" goto mainEnd
+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!
-if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
-exit /b 1
+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
diff --git a/plugin/build.gradle.kts b/plugin/build.gradle.kts
index a6b1d025..302e5466 100644
--- a/plugin/build.gradle.kts
+++ b/plugin/build.gradle.kts
@@ -1,10 +1,14 @@
-import dev.triumphteam.helper.*
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import dev.triumphteam.helper.papi
+import dev.triumphteam.helper.triumphSnapshots
+import xyz.jpenilla.resourcefactory.bukkit.Permission
+import xyz.jpenilla.resourcefactory.bukkit.bukkitPluginYaml
 
 plugins {
     id("chatchat.base-conventions")
-    id("com.github.johnrengelman.shadow") version "7.1.2"
+    id("com.gradleup.shadow") version "8.3.5"
     id("me.mattstudios.triumph") version "0.2.8"
+    id("xyz.jpenilla.resource-factory") version "1.2.0"
 }
 
 version = "${rootProject.version}-${System.getenv("BUILD_NUMBER")}"
@@ -41,164 +45,177 @@ dependencies {
     compileOnly(libs.griefprevention)
 }
 
-bukkit {
+val yaml = bukkitPluginYaml {
+    // Defaults for name, version, and description are inherited from the Gradle project
+    main = "at.helpch.chatchat.ChatChatPlugin"
+    authors.add("HelpChat")
     name = "ChatChat"
+    apiVersion = "1.21.4"
     description = "DelucksChat 2.0 or smth like that"
-    authors = listOf("HelpChat")
     depend = listOf("PlaceholderAPI")
-    softdepend = listOf("Towny", "DiscordSRV", "SuperVanish", "PremiumVanish", "GriefPrevention")
-    loadbefore = listOf("Essentials")
-    apiVersion = "1.13"
+
+    dependencies {
+        softDepend = listOf("Towny", "DiscordSRV", "SuperVanish", "PremiumVanish", "GriefPrevention")
+        loadBefore = listOf("Essentials")
+    }
+
     permissions {
-        permission("chatchat.admin") {
+        create("chatchat.admin") {
             description = "Execute admin commands"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.socialspy") {
+        create("chatchat.socialspy") {
             description = "Spy on private messages"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.test.format") {
+        create("chatchat.test.format") {
             description = "Test formats"
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.pm") {
+        create("chatchat.pm") {
             description = "Send or reply to private messages"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.pm.toggle") {
+        create("chatchat.pm.toggle") {
             description = "Toggle private messages"
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.ignore") {
+        create("chatchat.ignore") {
             description = "Permission to use /ignore to toggle ignoring a user"
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.ignore.bypass") {
+        create("chatchat.ignore.bypass") {
             description = "Bypass being ignored."
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.ignorelist") {
+        create("chatchat.ignorelist") {
             description = "List all the players that you are ignoring."
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.utf") {
+        create("chatchat.utf") {
             description = "Send any char in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.url") {
+        create("chatchat.url") {
             description = "Send clickable URLs in chat"
-            default = "false"
+            default = Permission.Default.FALSE
         }
-        permission("chatchat.channel.bypass-radius") {
+        create("chatchat.channel.bypass-radius") {
             description = "Bypass the channel radius"
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.mention.personal") {
+        create("chatchat.mention.personal") {
             description = "Mention other players"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.mention.everyone") {
+        create("chatchat.mention.everyone") {
             description = "Mention the whole channel"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.mention.personal.block") {
+        create("chatchat.mention.personal.block") {
             description = "Don't get mentioned by other players"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.mention.everyone.block") {
+        create("chatchat.mention.everyone.block") {
             description = "Don't get mentioned when there's a channel ping"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.mention.personal.block.override") {
+        create("chatchat.mention.personal.block.override") {
             description = "Mention other players even when they have mentions blocked"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.mention.everyone.block.override") {
+        create("chatchat.mention.everyone.block.override") {
             description = "Mention the whole channel even those that have channel mentions blocked"
-            default = "op"
+            default = Permission.Default.OP
         }
 
-        permission("chatchat.tag.item") {
+        create("chatchat.tag.item") {
             description = "Use the <item> tag in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.click") {
+        create("chatchat.tag.click") {
             description = "Use the <click> tag in chat"
-            default = "false"
+            default = Permission.Default.FALSE
         }
-        permission("chatchat.tag.color") {
+        create("chatchat.tag.color") {
             description = "Use the <color> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.font") {
+        create("chatchat.tag.font") {
             description = "Use the <font> tag in chat"
-            default = "false"
+            default = Permission.Default.FALSE
         }
-        permission("chatchat.tag.gradient") {
+        create("chatchat.tag.gradient") {
             description = "Use the <gradient> tag in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.hover") {
+        create("chatchat.tag.hover") {
             description = "Use the <hover> tag in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.insertion") {
+        create("chatchat.tag.insertion") {
             description = "Use the <insert> tag in chat"
-            default = "false"
+            default = Permission.Default.FALSE
         }
-        permission("chatchat.tag.keybind") {
+        create("chatchat.tag.keybind") {
             description = "Use the <key> tag in chat"
-            default = "false"
+            default = Permission.Default.FALSE
         }
-        permission("chatchat.tag.newline") {
+        create("chatchat.tag.newline") {
             description = "Use the <newline> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.rainbow") {
+        create("chatchat.tag.rainbow") {
             description = "Use the <rainbow> tag in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.reset") {
+        create("chatchat.tag.reset") {
             description = "Use the <reset> tag in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.translatable") {
+        create("chatchat.tag.translatable") {
             description = "Use the <translatable> tags in chat"
-            default = "false"
+            default = Permission.Default.FALSE
         }
-        permission("chatchat.tag.obfuscated") {
+        create("chatchat.tag.obfuscated") {
             description = "Use the <obfuscated> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.bold") {
+        create("chatchat.tag.bold") {
             description = "Use the <bold> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.strikethrough") {
+        create("chatchat.tag.strikethrough") {
             description = "Use the <strikethrough> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.underlined") {
+        create("chatchat.tag.underlined") {
             description = "Use the <underlined> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
-        permission("chatchat.tag.italic") {
+        create("chatchat.tag.italic") {
             description = "Use the <italic> tags in chat"
-            default = "op"
+            default = Permission.Default.OP
         }
     }
 }
 
+sourceSets.main {
+    resourceFactory {
+        factory(yaml.resourceFactory())
+    }
+}
+
 tasks {
     withType<ShadowJar> {
-        listOf("net.kyori",
+        listOf(
+            "net.kyori",
             "dev.triumphteam",
             "org.spongepowered",
             "io.leangen",