diff --git a/build.gradle.kts b/build.gradle.kts
index 98dbd0079..42e042030 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -45,9 +45,10 @@ allprojects {
 
     repositories {
         mavenCentral()
-        mavenLocal()
         maven("https://repo.auxilor.io/repository/maven-public/")
-        maven("https://jitpack.io")
+        maven("https://jitpack.io") {
+            content { includeGroupByRegex("com\\.github\\..*") }
+        }
 
         // SuperiorSkyblock2
         maven("https://repo.bg-software.com/repository/api/")
@@ -159,16 +160,6 @@ allprojects {
             options.encoding = "UTF-8"
         }
 
-        java {
-            sourceCompatibility = JavaVersion.VERSION_17
-            targetCompatibility = JavaVersion.VERSION_17
-            withSourcesJar()
-
-            toolchain {
-                languageVersion = JavaLanguageVersion.of(17)
-            }
-        }
-
         test {
             useJUnitPlatform()
 
@@ -181,6 +172,17 @@ allprojects {
         build {
             dependsOn(shadowJar)
         }
+
+        withType<JavaCompile>().configureEach {
+            options.release = 17
+        }
+    }
+
+    java {
+        withSourcesJar()
+        toolchain {
+            languageVersion = JavaLanguageVersion.of(21)
+        }
     }
 }
 
@@ -220,12 +222,5 @@ tasks {
     }
 }
 
-// Root is Java 21 to support 1.20.6+, rest use Java 17
-java {
-    sourceCompatibility = JavaVersion.VERSION_21
-    targetCompatibility = JavaVersion.VERSION_21
-    withSourcesJar()
-}
-
 group = "com.willfp"
 version = findProperty("version")!!
\ No newline at end of file
diff --git a/eco-core/core-nms/v1_20_6/build.gradle.kts b/eco-core/core-nms/v1_20_6/build.gradle.kts
index 5f11cfbff..f9e88edb4 100644
--- a/eco-core/core-nms/v1_20_6/build.gradle.kts
+++ b/eco-core/core-nms/v1_20_6/build.gradle.kts
@@ -37,10 +37,8 @@ tasks {
         )
     }
 
-    java {
-        sourceCompatibility = JavaVersion.VERSION_21
-        targetCompatibility = JavaVersion.VERSION_21
-        withSourcesJar()
+    compileJava {
+        options.release = 21
     }
 
     compileKotlin {
diff --git a/eco-core/core-nms/v1_21/build.gradle.kts b/eco-core/core-nms/v1_21/build.gradle.kts
index 959609f38..c40ee8106 100644
--- a/eco-core/core-nms/v1_21/build.gradle.kts
+++ b/eco-core/core-nms/v1_21/build.gradle.kts
@@ -37,10 +37,8 @@ tasks {
         )
     }
 
-    java {
-        sourceCompatibility = JavaVersion.VERSION_21
-        targetCompatibility = JavaVersion.VERSION_21
-        withSourcesJar()
+    compileJava {
+        options.release = 21
     }
 
     compileKotlin {
diff --git a/settings.gradle.kts b/settings.gradle.kts
index 0e7da322f..014b29a5f 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -5,6 +5,10 @@ pluginManagement {
     }
 }
 
+plugins {
+    id("org.gradle.toolchains.foojay-resolver-convention") version "0.8.0"
+}
+
 rootProject.name = "eco"
 
 // Core