diff --git a/build.gradle b/build.gradle
index 9f9460aad..30891b8f7 100644
--- a/build.gradle
+++ b/build.gradle
@@ -5,8 +5,6 @@ plugins {
     id 'dev.architectury.loom' apply false
 }
 
-apply from: rootProject.file('buildSrc/simple-java.gradle')
-
 println("Java: ${System.getProperty('java.version')}, JVM: ${System.getProperty('java.vm.version')} (${System.getProperty('java.vendor')}), Arch: ${System.getProperty('os.arch')}")
 
 idea {
diff --git a/buildSrc/build.gradle b/buildSrc/build.gradle
index a42435e5e..678405245 100644
--- a/buildSrc/build.gradle
+++ b/buildSrc/build.gradle
@@ -1,2 +1,3 @@
-
-// TODO: port stuff to convention plugins
+plugins {
+    id 'groovy-gradle-plugin'
+}
diff --git a/buildSrc/package-infos.gradle b/buildSrc/package-infos.gradle
deleted file mode 100644
index 1fd334292..000000000
--- a/buildSrc/package-infos.gradle
+++ /dev/null
@@ -1,74 +0,0 @@
-// Adapted from https://github.com/FabricMC/fabric/blob/31787236d242247e0b6c4ae806b1cfaa7042a62c/gradle/package-info.gradle, which is licensed under Apache 2.0.
-
-import java.nio.file.Files
-
-setupGeneratePackageInfos(sourceSets.main)
-
-def setupGeneratePackageInfos(SourceSet sourceSet) {
-	// We have to capture the source set name for the lazy string literals,
-	// otherwise it'll just be whatever the last source set is in the list.
-	def sourceSetName = sourceSet.name
-	def taskName = sourceSet.getTaskName('generate', 'PackageInfos')
-	def task = tasks.register(taskName, GeneratePackageInfosTask) {
-		group = 'flywheel'
-		description = "Generates package-info files for $sourceSetName packages."
-
-		// Only apply to default source directory since we also add the generated
-		// sources to the source set.
-		sourceRoot = file("src/$sourceSetName/java")
-		outputDir = file("src/$sourceSetName/generatedPackageInfos")
-	}
-	sourceSet.java.srcDir task
-
-    tasks.named('ideaSyncTask').configure {
-        finalizedBy task
-    }
-
-	def cleanTask = tasks.register(sourceSet.getTaskName('clean', 'PackageInfos'), Delete) {
-		group = 'flywheel'
-		delete file("src/$sourceSetName/generatedPackageInfos")
-	}
-	clean.dependsOn cleanTask
-}
-
-class GeneratePackageInfosTask extends DefaultTask {
-	@SkipWhenEmpty
-	@InputDirectory
-	final DirectoryProperty sourceRoot = project.objects.directoryProperty()
-
-	@OutputDirectory
-	final DirectoryProperty outputDir = project.objects.directoryProperty()
-
-	@TaskAction
-	def run() {
-		def output = outputDir.get().asFile.toPath()
-		output.deleteDir()
-		def root = sourceRoot.get().asFile.toPath()
-
-		root.eachDirRecurse {
-			def containsJava = Files.list(it).any {
-				Files.isRegularFile(it) && it.fileName.toString().endsWith('.java')
-			}
-
-			if (containsJava && Files.notExists(it.resolve('package-info.java'))) {
-				def relativePath = root.relativize(it)
-				def target = output.resolve(relativePath)
-				Files.createDirectories(target)
-
-				target.resolve('package-info.java').withWriter {
-					def packageName = relativePath.toString().replace(File.separator, '.')
-					it.write("""@ParametersAreNonnullByDefault
-					|@FieldsAreNonnullByDefault
-					|@MethodsReturnNonnullByDefault
-					|package $packageName;
-					|
-					|import javax.annotation.ParametersAreNonnullByDefault;
-					|
-					|import net.minecraft.FieldsAreNonnullByDefault;
-					|import net.minecraft.MethodsReturnNonnullByDefault;
-					|""".stripMargin())
-				}
-			}
-		}
-	}
-}
diff --git a/buildSrc/src/main/groovy/GeneratePackageInfosTask.groovy b/buildSrc/src/main/groovy/GeneratePackageInfosTask.groovy
new file mode 100644
index 000000000..36533a10a
--- /dev/null
+++ b/buildSrc/src/main/groovy/GeneratePackageInfosTask.groovy
@@ -0,0 +1,53 @@
+
+
+import org.gradle.api.DefaultTask
+import org.gradle.api.file.DirectoryProperty
+import org.gradle.api.tasks.InputDirectory
+import org.gradle.api.tasks.OutputDirectory
+import org.gradle.api.tasks.SkipWhenEmpty
+import org.gradle.api.tasks.TaskAction
+
+import java.nio.file.Files
+
+// Adapted from https://github.com/FabricMC/fabric/blob/31787236d242247e0b6c4ae806b1cfaa7042a62c/gradle/package-info.gradle, which is licensed under Apache 2.0.
+class GeneratePackageInfosTask extends DefaultTask {
+    @SkipWhenEmpty
+    @InputDirectory
+    final DirectoryProperty sourceRoot = project.objects.directoryProperty()
+
+    @OutputDirectory
+    final DirectoryProperty outputDir = project.objects.directoryProperty()
+
+    @TaskAction
+    def run() {
+        def output = outputDir.get().asFile.toPath()
+        output.deleteDir()
+        def root = sourceRoot.get().asFile.toPath()
+
+        root.eachDirRecurse {
+            def containsJava = Files.list(it).any {
+                Files.isRegularFile(it) && it.fileName.toString().endsWith('.java')
+            }
+
+            if (containsJava && Files.notExists(it.resolve('package-info.java'))) {
+                def relativePath = root.relativize(it)
+                def target = output.resolve(relativePath)
+                Files.createDirectories(target)
+
+                target.resolve('package-info.java').withWriter {
+                    def packageName = relativePath.toString().replace(File.separator, '.')
+                    it.write("""@ParametersAreNonnullByDefault
+					|@FieldsAreNonnullByDefault
+					|@MethodsReturnNonnullByDefault
+					|package $packageName;
+					|
+					|import javax.annotation.ParametersAreNonnullByDefault;
+					|
+					|import net.minecraft.FieldsAreNonnullByDefault;
+					|import net.minecraft.MethodsReturnNonnullByDefault;
+					|""".stripMargin())
+                }
+            }
+        }
+    }
+}
diff --git a/buildSrc/simple-java.gradle b/buildSrc/src/main/groovy/flywheel.java.gradle
similarity index 98%
rename from buildSrc/simple-java.gradle
rename to buildSrc/src/main/groovy/flywheel.java.gradle
index e74eba5e9..0aa594e6e 100644
--- a/buildSrc/simple-java.gradle
+++ b/buildSrc/src/main/groovy/flywheel.java.gradle
@@ -1,3 +1,7 @@
+plugins {
+    id 'java'
+}
+
 boolean dev = System.getenv('RELEASE') == null || System.getenv('RELEASE').equalsIgnoreCase('false')
 String buildNumber = System.getenv('BUILD_NUMBER')
 
diff --git a/buildSrc/src/main/groovy/flywheel.package-infos.gradle b/buildSrc/src/main/groovy/flywheel.package-infos.gradle
new file mode 100644
index 000000000..1e9392da6
--- /dev/null
+++ b/buildSrc/src/main/groovy/flywheel.package-infos.gradle
@@ -0,0 +1,31 @@
+
+sourceSets.configureEach {
+    setupGeneratePackageInfos(it)
+}
+
+def setupGeneratePackageInfos(SourceSet sourceSet) {
+    // We have to capture the source set name for the lazy string literals,
+    // otherwise it'll just be whatever the last source set is in the list.
+    def sourceSetName = sourceSet.name
+    def taskName = sourceSet.getTaskName('generate', 'PackageInfos')
+    def task = tasks.register(taskName, GeneratePackageInfosTask) {
+        group = 'flywheel'
+        description = "Generates package-info files for $sourceSetName packages."
+
+        // Only apply to default source directory since we also add the generated
+        // sources to the source set.
+        sourceRoot = file("src/$sourceSetName/java")
+        outputDir = file("src/$sourceSetName/generatedPackageInfos")
+    }
+    sourceSet.java.srcDir task
+
+    tasks.named('ideaSyncTask').configure {
+        finalizedBy task
+    }
+
+    def cleanTask = tasks.register(sourceSet.getTaskName('clean', 'PackageInfos'), Delete) {
+        group = 'flywheel'
+        delete file("src/$sourceSetName/generatedPackageInfos")
+    }
+    clean.dependsOn cleanTask
+}
diff --git a/buildSrc/platforms.gradle b/buildSrc/src/main/groovy/flywheel.platform.gradle
similarity index 98%
rename from buildSrc/platforms.gradle
rename to buildSrc/src/main/groovy/flywheel.platform.gradle
index 19e7feddb..84a73a2a1 100644
--- a/buildSrc/platforms.gradle
+++ b/buildSrc/src/main/groovy/flywheel.platform.gradle
@@ -1,3 +1,7 @@
+plugins {
+    id 'flywheel.subproject'
+}
+
 evaluationDependsOn(':common')
 
 loom {
diff --git a/buildSrc/subprojects.gradle b/buildSrc/src/main/groovy/flywheel.subproject.gradle
similarity index 93%
rename from buildSrc/subprojects.gradle
rename to buildSrc/src/main/groovy/flywheel.subproject.gradle
index 4d87d9606..e7ee6cd41 100644
--- a/buildSrc/subprojects.gradle
+++ b/buildSrc/src/main/groovy/flywheel.subproject.gradle
@@ -1,3 +1,11 @@
+plugins {
+    id 'idea'
+    id 'flywheel.java'
+    id 'maven-publish'
+    id 'dev.architectury.loom'
+    id 'flywheel.package-infos'
+}
+
 loom {
     silentMojangMappingsLicense()
 
diff --git a/common/build.gradle b/common/build.gradle
index 802838ba7..51970de5b 100644
--- a/common/build.gradle
+++ b/common/build.gradle
@@ -1,15 +1,7 @@
 plugins {
-    id 'idea'
-    id 'java'
-    id 'maven-publish'
-    id 'dev.architectury.loom'
+    id 'flywheel.subproject'
 }
 
-apply from: rootProject.file('buildSrc/simple-java.gradle')
-apply from: rootProject.file('buildSrc/subprojects.gradle')
-// TODO: package-infos specifically targets the main source set
-// apply from: rootProject.file('buildSrc/package-infos.gradle')
-
 sourceSets {
     // Loom only populates mc stuff to the main source set,
     // so grab that here and use it for the others.
diff --git a/fabric/build.gradle b/fabric/build.gradle
index e1e426b0e..c9262ed2c 100644
--- a/fabric/build.gradle
+++ b/fabric/build.gradle
@@ -1,15 +1,7 @@
 plugins {
-    id 'idea'
-    id 'java'
-    id 'maven-publish'
-    id 'dev.architectury.loom'
+    id 'flywheel.platform'
 }
 
-apply from: rootProject.file('buildSrc/simple-java.gradle')
-apply from: rootProject.file('buildSrc/subprojects.gradle')
-apply from: rootProject.file('buildSrc/platforms.gradle')
-apply from: rootProject.file('buildSrc/package-infos.gradle')
-
 dependencies {
     modImplementation "net.fabricmc:fabric-loader:${fabric_loader_version}"
     modApi "net.fabricmc.fabric-api:fabric-api:${fabric_api_version}"
diff --git a/forge/build.gradle b/forge/build.gradle
index 7066b5c65..79882c90c 100644
--- a/forge/build.gradle
+++ b/forge/build.gradle
@@ -1,15 +1,7 @@
 plugins {
-    id 'idea'
-    id 'java'
-    id 'maven-publish'
-    id 'dev.architectury.loom'
+    id 'flywheel.platform'
 }
 
-apply from: rootProject.file('buildSrc/simple-java.gradle')
-apply from: rootProject.file('buildSrc/subprojects.gradle')
-apply from: rootProject.file('buildSrc/platforms.gradle')
-apply from: rootProject.file('buildSrc/package-infos.gradle')
-
 loom {
     forge {
         mixinConfig 'flywheel.backend.mixins.json'