diff --git a/.github/workflows/dependencies.yml b/.github/workflows/dependencies.yml
index 67ae1c5..2455427 100644
--- a/.github/workflows/dependencies.yml
+++ b/.github/workflows/dependencies.yml
@@ -15,7 +15,7 @@ concurrency:
   cancel-in-progress: ${{ github.ref != 'refs/heads/master' }}
 
 jobs:
-  generate-diff:
+  generate-diff-gradle:
     env:
       github_token: ${{ secrets.GITHUB_TOKEN }}
     runs-on: ubuntu-latest
@@ -53,13 +53,66 @@ jobs:
         id: find_comment
         with:
           issue-number: ${{ github.event.pull_request.number }}
-          body-includes: Dependency diff
+          body-includes: Dependency diff (Gradle plugin)
 
       - uses: peter-evans/create-or-update-comment@v3
         if: ${{ steps.dependency-diff.outputs.text-diff != null || steps.find_comment.outputs.comment-id != null }}
         with:
           body: |
-            Dependency diff:
+            Dependency diff (Gradle plugin):
+              ```diff
+              ${{ steps.dependency-diff.outputs.text-diff }}
+              ```
+          edit-mode: replace
+          comment-id: ${{ steps.find_comment.outputs.comment-id }}
+          issue-number: ${{ github.event.pull_request.number }}
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+  generate-diff-core:
+    env:
+      github_token: ${{ secrets.GITHUB_TOKEN }}
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
+      - name: Write Gradle build properties to `~/.gradle/gradle.properties`
+        run: |
+          mkdir -p ~/.gradle
+          printf "org.gradle.jvmargs=-Xmx3G -XX:+UseParallelGC\n" >> ~/.gradle/gradle.properties
+          printf "org.gradle.vfs.watch=false\n" >> ~/.gradle/gradle.properties
+        shell: bash
+
+      - uses: actions/setup-java@v3
+        with:
+          distribution: 'temurin'
+          java-version: 21
+
+      - name: Assemble
+        uses: gradle/gradle-build-action@v2
+        with:
+          arguments: assemble -m
+
+      - id: dependency-diff
+        name: Generate dependency diff
+        uses: usefulness/dependency-tree-diff-action@v1
+        with:
+          project: licensee-for-android-core
+          configuration: 'runtimeClasspath'
+
+      - uses: peter-evans/find-comment@v2
+        id: find_comment
+        with:
+          issue-number: ${{ github.event.pull_request.number }}
+          body-includes: Dependency diff (core module)
+
+      - uses: peter-evans/create-or-update-comment@v3
+        if: ${{ steps.dependency-diff.outputs.text-diff != null || steps.find_comment.outputs.comment-id != null }}
+        with:
+          body: |
+            Dependency diff (core module):
               ```diff
               ${{ steps.dependency-diff.outputs.text-diff }}
               ```
diff --git a/gradle.properties b/gradle.properties
index e5699c5..c140154 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,4 +2,3 @@ kotlin.code.style=official
 org.gradle.caching=true
 org.gradle.parallel=true
 org.gradle.jvmargs="-XX:+UseParallelGC"
-kotlin.stdlib.default.dependency=false
diff --git a/images/generated_code_dark.png b/images/generated_code_dark.png
index e5664f7..87c820d 100644
Binary files a/images/generated_code_dark.png and b/images/generated_code_dark.png differ
diff --git a/images/generated_code_light.png b/images/generated_code_light.png
index 15d75ca..38ddc15 100644
Binary files a/images/generated_code_light.png and b/images/generated_code_light.png differ
diff --git a/licensee-for-android-core/build.gradle b/licensee-for-android-core/build.gradle
index b0982dc..ebc54d9 100644
--- a/licensee-for-android-core/build.gradle
+++ b/licensee-for-android-core/build.gradle
@@ -4,6 +4,7 @@ plugins {
     alias(libs.plugins.starter.library.kotlin)
     alias(libs.plugins.kotlinx.binarycompatibility)
     alias(libs.plugins.drewhamilton.poko)
+    id("java-test-fixtures")
     id("com.starter.publishing")
 }
 description = "core library for io.github.usefulness.licensee-for-android gradle plugin. Exposes shareable classes and interfaces, useful in multi-module projects"
@@ -12,6 +13,10 @@ kotlin {
     explicitApi()
 }
 
+poko {
+    pokoAnnotation.set "io.github.usefulness.licensee.Poko"
+}
+
 def targetVersion = JavaVersion.VERSION_1_8
 tasks.withType(KotlinCompile).configureEach {
     it.kotlinOptions.jvmTarget = targetVersion.toString()
diff --git a/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Artifact.kt b/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Artifact.kt
index 7e3d24d..de5061d 100644
--- a/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Artifact.kt
+++ b/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Artifact.kt
@@ -1,7 +1,5 @@
 package io.github.usefulness.licensee
 
-import dev.drewhamilton.poko.Poko
-
 @Poko
 public class Artifact(
     public val groupId: String,
diff --git a/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Poko.kt b/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Poko.kt
new file mode 100644
index 0000000..ec918b2
--- /dev/null
+++ b/licensee-for-android-core/src/main/kotlin/io/github/usefulness/licensee/Poko.kt
@@ -0,0 +1,3 @@
+package io.github.usefulness.licensee
+
+internal annotation class Poko
diff --git a/licensee-for-android-core/src/testFixtures/kotlin/io/github/usefulness/licensee/Stubs.kt b/licensee-for-android-core/src/testFixtures/kotlin/io/github/usefulness/licensee/Stubs.kt
new file mode 100644
index 0000000..ca2c5dc
--- /dev/null
+++ b/licensee-for-android-core/src/testFixtures/kotlin/io/github/usefulness/licensee/Stubs.kt
@@ -0,0 +1,53 @@
+package io.github.usefulness.licensee
+
+class FakeLicensee(override val artifacts: List<Artifact>) : Licensee
+
+fun stubArtifact(
+    groupId: String = "com.example",
+    artifactId: String = "foo-bar",
+    version: String = "0.1.0-alpha04",
+    name: String? = "Fixture Name of $groupId:$artifactId:$version",
+    spdxLicenses: List<SpdxLicense> = listOf(stubSpdxLicense()),
+    scm: Scm? = stubScm(),
+    unknownLicenses: List<UnknownLicense> = listOf(stubUnknownLicense()),
+) = Artifact(
+    groupId = groupId,
+    artifactId = artifactId,
+    version = version,
+    name = name,
+    spdxLicenses = spdxLicenses,
+    scm = scm,
+    unknownLicenses = unknownLicenses,
+)
+
+fun stubSpdxLicense(
+    identifier: String = "Apache-2.0",
+    name: String = "Apache License 2.0",
+    url: String = "https://www.apache.org/licenses/LICENSE-2.0",
+) = SpdxLicense(
+    identifier = identifier,
+    name = name,
+    url = url,
+)
+
+fun stubApacheLicense() = stubSpdxLicense(
+    identifier = "Apache-2.0",
+    name = "Apache License 2.0",
+    url = "https://www.apache.org/licenses/LICENSE-2.0",
+)
+
+fun stubMitLicense() = stubSpdxLicense(
+    identifier = "MIT",
+    name = "MIT License",
+    url = "https://opensource.org/licenses/MIT",
+)
+
+fun stubScm(url: String = "url") = Scm(url = url)
+
+fun stubUnknownLicense(
+    name: String = "Android Software Development Kit License",
+    url: String = "https://developer.android.com/studio/terms.html",
+) = UnknownLicense(
+    name = name,
+    url = url,
+)
diff --git a/licensee-for-android/gradle.properties b/licensee-for-android/gradle.properties
new file mode 100644
index 0000000..0d6aa7b
--- /dev/null
+++ b/licensee-for-android/gradle.properties
@@ -0,0 +1 @@
+kotlin.stdlib.default.dependency=false