Hi, I'm using whatsapp.

Dockerfile

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+FROM node:20-alpine
+
+WORKDIR /app
+
+COPY package*.json ./
+RUN npm install --omit=dev
+
+COPY . .
+
+ENV PORT=3000
+EXPOSE 3001
+
+# data/ and uploads/ are where persistent state lives -- mount these as
+# volumes (see docker-compose.yml) so entries survive container restarts.
+VOLUME ["/app/data", "/app/uploads"]
+
+CMD ["node", "server.js"]