Attempt 1 at github packages.

.github/workflows/maven-publish.yml

@@ -0,0 +1,20 @@
+name: Publish package to GitHub Packages
+on:
+  release:
+    types: [created]
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      packages: write
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-java@v4
+        with:
+          java-version: '11'
+          distribution: 'temurin'
+      - name: Publish package
+        run: mvn --batch-mode deploy
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

pom.xml

@@ -42,4 +42,13 @@
         </dependency>
     </dependencies>
 
+    <distributionManagement>
+        <repository>
+            <id>github</id>
+            <name>GitHub konotyran Apache Maven Packages</name>
+            <url>https://maven.pkg.github.com/konotyran/Archipelago.MultiClient.Java</url>
+        </repository>
+    </distributionManagement>
+
+
 </project>