Try making arm64 image

.gitea/workflows/docker.yaml

@@ -11,6 +11,9 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    env:
+      # Set to 'true' if you need to compile native modules from source (e.g. better-sqlite3 on arm)
+      BUILD_FROM_SOURCE: 'false'
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -45,6 +48,10 @@ jobs:
         uses: docker/build-push-action@v5
         with:
           context: .
+          # Build multi-arch images for amd64 and arm64
+          platforms: linux/amd64,linux/arm64
           push: true
+          build-args: |
+            BUILD_FROM_SOURCE=${{ env.BUILD_FROM_SOURCE }}
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}

Dockerfile

@@ -3,6 +3,9 @@ FROM node:20-alpine AS builder
 
 WORKDIR /app
 
+# Install build tools needed for native modules and frontend build
+RUN apk add --no-cache python3 build-base sqlite-dev
+
 COPY package.json package-lock.json* ./
 RUN npm ci
 
@@ -12,8 +15,12 @@ RUN npm run build
 # ── Stage 2: Production image ───────────────────────────────────────────────
 FROM node:20-alpine
 
-# better-sqlite3 needs build tools for native compilation
-RUN apk add --no-cache python3 make g++
+# Allow forcing build from source (useful when prebuilt binaries are not available)
+ARG BUILD_FROM_SOURCE=false
+ENV npm_config_build_from_source=${BUILD_FROM_SOURCE}
+
+# Install build tools and sqlite dev headers for compiling native modules
+RUN apk add --no-cache python3 build-base sqlite-dev
 
 WORKDIR /app
 
@@ -21,7 +28,7 @@ COPY package.json package-lock.json* ./
 RUN npm ci --omit=dev && npm cache clean --force
 
 # Remove build tools after install to keep image smaller
-RUN apk del python3 make g++
+RUN apk del build-base python3
 
 # Copy server code
 COPY server/ ./server/