diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
new file mode 100644
index 0000000..45fe36a
--- /dev/null
+++ b/.github/workflows/publish.yml
@@ -0,0 +1,33 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+
+permissions:
+  contents: read
+
+jobs:
+  build-and-test:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up JDK 17
+        uses: actions/setup-java@v4
+        with:
+          java-version: '17'
+          distribution: 'temurin'
+
+      - name: Setup Gradle
+        uses: gradle/actions/setup-gradle@v3
+
+      - name: Publish package
+        run: |
+          COMMIT_SHA="`git log -n 1 --pretty=format:%H`" ./gradlew publish
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/numbers/build.gradle.kts b/numbers/build.gradle.kts
index c662710..e3f9147 100644
--- a/numbers/build.gradle.kts
+++ b/numbers/build.gradle.kts
@@ -1,6 +1,9 @@
+import java.net.URI
+
 plugins {
     alias(libs.plugins.org.jetbrains.kotlin.jvm)
     id("java-library")
+    id("maven-publish")
 }
 
 kotlin {
@@ -11,3 +14,31 @@ dependencies {
     implementation(libs.nanojson)
     testImplementation(libs.junit)
 }
+
+val sourcesJar by tasks.registering(Jar::class) {
+    archiveClassifier.convention("sources");
+    archiveClassifier.set("sources");
+    from(sourceSets.main.get().allSource)
+}
+
+publishing {
+    repositories {
+        maven {
+            name = "GitHubPackages"
+            url = URI("https://maven.pkg.github.com/octocat/hello-world")
+            credentials {
+                username = System.getenv("GITHUB_ACTOR")
+                password = System.getenv("GITHUB_TOKEN")
+            }
+        }
+    }
+    publications {
+        register("mavenJava", MavenPublication::class) {
+            groupId = "org.dicio"
+            artifactId = "numbers"
+            version = System.getenv("COMMIT_SHA")
+            from(components["java"])
+            artifact(sourcesJar.get())
+        }
+    }
+}