Railway Launches Railpack: 77% Faster Builds, Goodbye Nixpacks

Railway has released Railpack, a new build system replacing Nixpacks. Railpack addresses Nixpacks' limitations in version management, build size, and caching. It offers granular version control, significantly smaller image sizes (38% reduction for Node.js, 77% for Python), and improved caching, leading to much faster builds. Using BuildKit and Mise, Railpack employs a three-stage build process (analyze, plan, generate) for finer control and parallelization. Currently supporting Node.js, Python, Go, PHP, and static HTML deployments, Railpack plans to add more languages and frameworks.