nixpkgs-multiverse: fast mode
Summary
The article introduces nixpkgs-multiverse's fast mode, which provides store paths for all indexed package versions to bypass full Nixpkgs evaluation. It also explains the mkFakeDerivation technique used to produce usable derivations without impure steps, demonstrates practical commands, and notes the extensive cache coverage as of Aug 2026. This enables faster, more cache-driven workflows and deeper understanding of historical Nixpkgs data.