Changes: ✅ Dockerfile now uses base image ✅ Helper script to build base locally ✅ Complete documentation Base image contains heavy dependencies: - Python 3.11 - Node.js 20 - bun, npm - Build tools (gcc, g++, make) Build times: • First time: 10 minutes (build base) • After that: 3 minutes (code only) 🚀 To build base image: ./build-base-local.sh Then normal builds are FAST!