Does this work?

Dockerfile

@@ -0,0 +1,30 @@
+FROM denoland/deno:alpine AS builder
+
+WORKDIR /app
+
+COPY deno.json import_map.json ./
+COPY dev.ts main.ts .env* ./
+
+COPY components/ ./components/
+COPY islands/ ./islands/
+COPY lib/ ./lib/
+COPY posts/ ./posts/
+COPY routes/ ./routes/
+COPY static/ ./static/
+COPY utils/ ./utils/
+
+RUN deno cache main.ts
+
+FROM denoland/deno:alpine
+
+WORKDIR /app
+
+COPY --from=builder /deno-dir/ /deno-dir/
+COPY --from=builder /app/ /app/
+
+ENV DENO_DEPLOYMENT=production
+
+EXPOSE 8000
+
+# Run the server
+CMD ["run", "-A", "main.ts"]