FROM node:20-bullseye AS base           
WORKDIR /app

# ---- native build deps ----
RUN apt-get update -y && \
    apt-get install -y --no-install-recommends \
         build-essential python3 pkg-config && \
    rm -rf /var/lib/apt/lists/*
# ---------------------------

COPY package*.json ./
RUN npm ci --unsafe-perm
COPY public/ /app/public/          
COPY . .

CMD ["node", "backend/server2.js"]