add that

.github/workflows/build.yml

@@ -0,0 +1,40 @@
+# This workflow uses actions that are not certified by GitHub.
+# They are provided by a third-party and are governed by
+# separate terms of service, privacy policy, and support
+# documentation.
+# This workflow will build a Java project with Gradle and cache/restore any dependencies to improve the workflow execution time
+# For more information see: https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-java-with-gradle
+
+name: Build
+on: [ push, pull_request ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+
+    runs-on: windows-latest
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Set up JDK 17
+      uses: actions/setup-java@v3
+      with:
+        java-version: '17'
+        distribution: 'temurin'
+
+    - name: Build with Gradle
+      run: ./gradlew build
+
+    - name: Upload fabric
+      uses: actions/upload-artifact@v3
+      with:
+        name: fabric-build
+        path: fabric/build/libs
+
+    - name: Upload forge
+      uses: actions/upload-artifact@v3
+      with:
+        name: forge-build
+        path: forge/build/libs