Update build-nightly.yml

Update to streamlined process

.github/workflows/build-nightly.yml

@@ -1,4 +1,5 @@
 name: Build :nightly
+
 on:
   workflow_dispatch:
   push:
@@ -13,20 +14,44 @@ on:
     types: [closed]
 
 jobs:
-  build:
+  build-and-push:
     runs-on: ubuntu-latest
 
     steps:
       - name: Checkout code
         uses: actions/checkout@v3
         with:
-          ref: nightly
+          ref: main
 
       - name: Login to GitHub Container Registry
         run: echo "${{ secrets.GITHUB_TOKEN }}" | docker login ghcr.io -u ${{ github.actor }} --password-stdin
 
-      - name: Build Docker image
-        run: docker build -t ghcr.io/insertdisc/pattrmm:nightly .
+      - name: Login to Docker Hub
+        uses: docker/login-action@v3
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@master
+        with:
+          platforms: all
+
+      - name: Set up Docker Buildx
+        id: buildx
+        uses: docker/setup-buildx-action@v3
 
-      - name: Push Docker image
-        run: docker push ghcr.io/insertdisc/pattrmm:nightly
+      - name: Build and push to GHCR and Docker Hub
+        id: docker_build_push_ghcr
+        uses: docker/build-push-action@v5
+        with:
+          context: ./
+          file: ./Dockerfile
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
+          push: true
+          tags: |
+            ghcr.io/insertdisc/pattrmm:nightly
+            ${{ secrets.DOCKER_HUB_USERNAME }}/pattrmm:nightly
+          cache-from: type=gha
+          cache-to: type=gha,mode=max 
+