First stab

plugin/build.gradle.kts

@@ -0,0 +1,34 @@
+plugins {
+    id("com.github.johnrengelman.shadow") version "4.0.0"
+    `java-gradle-plugin`
+    `kotlin-dsl`
+    `maven-publish`
+    kotlin("kapt") version embeddedKotlinVersion
+}
+
+group = "org.nixos"
+version = "1.0.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    implementation(kotlin("stdlib-jdk8"))
+    implementation("org.apache.maven:maven-model:3.5.4")
+    implementation("org.apache.maven:maven-model-builder:3.5.4")
+    implementation("com.squareup.okio:okio:2.2.2")
+    implementation("com.squareup.moshi:moshi:1.8.0")
+    kapt("com.squareup.moshi:moshi-kotlin-codegen:1.8.0")
+}
+
+gradlePlugin {
+    plugins {
+        register("gradle2nix") {
+            id = "org.nixos.gradle2nix"
+            displayName = "gradle2nix"
+            description = "Create Nix configurations suitable for reproducible packaging"
+            implementationClass = "org.nixos.gradle2nix.Gradle2NixPlugin"
+        }
+    }
+}