Prebake speeds up bundle install by skipping native gem compilation. It fetches precompiled binaries for gems like puma, nokogiri, pg, grpc, and bootsnap from a shared cache instead of compiling C extensions from source. Drop-in Bundler plugin - one line in your Gemfile, no other changes needed. Works out of the box with the hosted cache at gems.prebake.in, or self-host with S3-compatible storage (AWS S3, Cloudflare R2, Backblaze B2, MinIO) or Gemstash. Works with Ruby 3.2+ and Ruby 4.0 on any platform.