diff --git a/.gitea/workflows/build-and-push.yml b/.gitea/workflows/build-and-push.yml
index 59226e3..3af83a6 100644
--- a/.gitea/workflows/build-and-push.yml
+++ b/.gitea/workflows/build-and-push.yml
@@ -1,7 +1,6 @@
 # Reusable workflow — called by project repos via `uses:`
-# Requires Gitea 1.21+ for workflow_call support.
-# Runner assumed on Pi 5 (ARM64 native) — no QEMU needed.
-# If runner moves to x86 NAS, uncomment the QEMU setup steps.
+# Shell-based — no node/JS actions required, works in host mode.
+# Requires: git and docker available on the runner host.
 
 name: Build and push Docker image
 
@@ -12,16 +11,15 @@ on:
         description: "Image name (no registry prefix)"
         required: true
         type: string
+      repo_name:
+        description: "Source repo name (e.g. mtg-meta-scraper)"
+        required: true
+        type: string
       dockerfile_path:
-        description: "Path to Dockerfile"
+        description: "Path to Dockerfile relative to repo root"
         required: false
         type: string
         default: "Dockerfile"
-      platforms:
-        description: "Target platform(s)"
-        required: false
-        type: string
-        default: "linux/arm64"
       registry:
         description: "Container registry host"
         required: false
@@ -37,44 +35,36 @@ on:
         required: true
       REGISTRY_TOKEN:
         required: true
+      GITEA_TOKEN:
+        required: true
 
 jobs:
   build:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        run: |
+          rm -rf /tmp/${{ inputs.image_name }}-build
+          git clone https://oauth2:${{ secrets.GITEA_TOKEN }}@${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.repo_name }}.git /tmp/${{ inputs.image_name }}-build
+          cd /tmp/${{ inputs.image_name }}-build && git checkout ${{ gitea.sha }}
 
-      # Uncomment if runner is on x86 NAS (cross-compiling for Pi ARM64):
-      # - name: Set up QEMU
-      #   uses: docker/setup-qemu-action@v3
-      # - name: Set up Docker Buildx
-      #   uses: docker/setup-buildx-action@v3
-
-      - name: Log in to Gitea registry
-        uses: docker/login-action@v3
-        with:
-          registry: ${{ inputs.registry }}
-          username: ${{ secrets.REGISTRY_USER }}
-          password: ${{ secrets.REGISTRY_TOKEN }}
-
-      - name: Extract metadata
-        id: meta
-        uses: docker/metadata-action@v5
-        with:
-          images: ${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}
-          tags: |
-            type=raw,value=latest,enable={{is_default_branch}}
-            type=sha,prefix=sha-,format=short
+      - name: Login to registry
+        run: |
+          echo "${{ secrets.REGISTRY_TOKEN }}" | docker login ${{ inputs.registry }} -u "${{ secrets.REGISTRY_USER }}" --password-stdin
 
       - name: Build and push
-        uses: docker/build-push-action@v5
-        with:
-          context: .
-          file: ${{ inputs.dockerfile_path }}
-          push: true
-          tags: ${{ steps.meta.outputs.tags }}
-          labels: ${{ steps.meta.outputs.labels }}
-          platforms: ${{ inputs.platforms }}
-          cache-from: type=registry,ref=${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}:buildcache
-          cache-to: type=registry,ref=${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}:buildcache,mode=max
+        run: |
+          SHORT_SHA=$(echo "${{ gitea.sha }}" | cut -c1-7)
+          IMAGE="${{ inputs.registry }}/${{ inputs.registry_owner }}/${{ inputs.image_name }}"
+          docker build /tmp/${{ inputs.image_name }}-build \
+            -f /tmp/${{ inputs.image_name }}-build/${{ inputs.dockerfile_path }} \
+            -t "${IMAGE}:latest" \
+            -t "${IMAGE}:sha-${SHORT_SHA}"
+          docker push "${IMAGE}:latest"
+          docker push "${IMAGE}:sha-${SHORT_SHA}"
+
+      - name: Cleanup
+        if: always()
+        run: |
+          docker logout ${{ inputs.registry }} || true
+          rm -rf /tmp/${{ inputs.image_name }}-build