attempting to create different caches for each platform

.github/workflows/docker-image.yml

@@ -12,6 +12,9 @@ jobs:
   build_and_push_docker_image:
     name: Push Docker Image to Docker Hub
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        platform: [linux/amd64, linux/arm64]
 
     steps:
       - name: Checkout Repository
@@ -32,9 +35,9 @@ jobs:
           path: |
             root/.ivy2
             root/.sbt
-          key: sbt-${{ runner.os }}-${{ hashFiles('**/build.sbt', '**/project/*.sbt') }}
+          key: sbt-${{ runner.os }}-${{ matrix.platform }}-${{ hashFiles('**/build.sbt', '**/project/*.sbt') }}
           restore-keys: |
-            sbt-${{ runner.os }}-
+            sbt-${{ runner.os }}-${{ matrix.platform }}
 
       - name: Inject sbt cache into Docker
         uses: reproducible-containers/[email protected]
@@ -50,6 +53,7 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
+          platforms: ${{ matrix.platform }}
           cache-from: type=gha
           cache-to: type=gha,mode=max
           push: ${{ github.event_name != 'pull_request' }}