diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..34d600a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,42 @@
+# 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
+
+remappedSrc/
diff --git a/build.gradle b/build.gradle
index 84a69d1..383e374 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,5 @@
 plugins {
-	id 'fabric-loom' version '1.6-SNAPSHOT'
+	id 'fabric-loom' version "${loom_version}"
 	id 'maven-publish'
 }
 
@@ -19,8 +19,8 @@ repositories {
 }
 
 dependencies {
-	compileOnly 'org.projectlombok:lombok:1.18.24'
-	annotationProcessor 'org.projectlombok:lombok:1.18.24'
+	compileOnly 'org.projectlombok:lombok:1.18.38'
+	annotationProcessor 'org.projectlombok:lombok:1.18.38'
 
 	//add joml
 	modImplementation 'org.joml:joml:1.10.4'
@@ -45,7 +45,7 @@ processResources {
 }
 
 tasks.withType(JavaCompile).configureEach {
-	it.options.release = 17
+	it.options.release = 21
 }
 
 java {
@@ -54,8 +54,8 @@ java {
 	// If you remove this line, sources will not be generated.
 	withSourcesJar()
 
-	sourceCompatibility = JavaVersion.VERSION_17
-	targetCompatibility = JavaVersion.VERSION_17
+	sourceCompatibility = JavaVersion.VERSION_21
+	targetCompatibility = JavaVersion.VERSION_21
 }
 
 jar {
diff --git a/gradle.properties b/gradle.properties
index be55ec6..8feaa20 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -4,14 +4,15 @@ org.gradle.parallel=true
 
 # Fabric Properties
 # check these on https://fabricmc.net/develop
-minecraft_version=1.20.1
-yarn_mappings=1.20.1+build.3
-loader_version=0.15.10
+minecraft_version=1.21
+yarn_mappings=1.21+build.9
+loader_version=0.16.14
+loom_version=1.10-SNAPSHOT
 
-#Fabric api
-fabric_version=0.97.0+1.20.4
+# Fabric API
+fabric_version=0.102.0+1.21
 
 # Mod Properties
-mod_version = 1.1.2+1.20.1
+mod_version = 1.1.2+1.21
 maven_group = themixray.repeating.mod
 archives_base_name = repeating-mod
\ No newline at end of file
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index e644113..a4b76b9 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 b82aa23..e18bc25 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.12.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME
diff --git a/shell.nix b/shell.nix
new file mode 100644
index 0000000..27efeb0
--- /dev/null
+++ b/shell.nix
@@ -0,0 +1,6 @@
+{ pkgs ? import <nixpkgs> {} }:
+pkgs.mkShell {
+  shellHook = ''
+    export LD_LIBRARY_PATH="''${LD_LIBRARY_PATH}''${LD_LIBRARY_PATH:+:}${pkgs.libglvnd}/lib"
+  '';
+}
\ No newline at end of file
diff --git a/src/main/java/themixray/repeating/mod/RepeatingScreen.java b/src/main/java/themixray/repeating/mod/RepeatingScreen.java
index 015feaf..78f2121 100644
--- a/src/main/java/themixray/repeating/mod/RepeatingScreen.java
+++ b/src/main/java/themixray/repeating/mod/RepeatingScreen.java
@@ -51,7 +51,7 @@ public class RepeatingScreen extends Screen {
 
     @Override
     public void render(DrawContext context, int mouseX, int mouseY, float delta) {
-        renderBackground(context);
+        renderBackground(context, mouseX, mouseY, delta);
 
         for (RenderListener l : render_listeners) {
             if (l.beforeRender()) {
diff --git a/src/main/java/themixray/repeating/mod/render/shader/ShaderManager.java b/src/main/java/themixray/repeating/mod/render/shader/ShaderManager.java
index f11c98b..08d6a9b 100644
--- a/src/main/java/themixray/repeating/mod/render/shader/ShaderManager.java
+++ b/src/main/java/themixray/repeating/mod/render/shader/ShaderManager.java
@@ -41,7 +41,7 @@ public class ShaderManager {
         try {
             boolean file_present = true;
             ResourceFactory resourceFactory = MinecraftClient.getInstance().getResourceManager();
-            Optional<Resource> resource = resourceFactory.getResource(new Identifier("renderer", "shader/" + name + type.fileExtension));
+            Optional<Resource> resource = resourceFactory.getResource(Identifier.of("renderer", "shader/" + name + type.fileExtension));
             int i = glCreateShader(type.glType);
             if (resource.isPresent()) {
                 GlStateManager.glShaderSource(i, new GlImportProcessor() {