Support for multi-platform builds

Author: aaronpowell

.github/workflows/main.yml

@@ -89,6 +89,12 @@ jobs:
         with:
           images: ghcr.io/${{ github.repository }}
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
       - name: Build and push Docker image
         id: push
         uses: docker/build-push-action@v6