EmbeddingGemma 2: an open, lightweight multimodal embedding model
deepmind.google·6d ago
AI Engineering
Lobsters·Aug 15·5 min read
nixpkgs-multiverse: fast mode
TL;DR
Nixpkgs-multiverse introduces a groundbreaking capability that allows users to access every version of every package in Nixpkgs from a single flake input, eliminating the need for extensive evaluations.
✦ Why It Matters
Start using nixpkgs-multiverse today to streamline your package management and reduce evaluation overhead.
Key Takeaways
- Utilize nixpkgs-multiverse for faster package version access.
- Avoid downloading large Nixpkgs trees with the fast attribute.
- Leverage mkFakeDerivation to streamline Nix CLI interactions.
- Check the cache for historical package versions easily.
How It Works
The fast mode in nixpkgs-multiverse allows users to retrieve package store paths directly from the cache without evaluating Nixpkgs. This is accomplished through mkFakeDerivation, which creates a fake derivation that the Nix CLI can recognize as a valid store path.
By appending context to strings, it ensures that the paths are treated correctly, enabling efficient access to historical package versions.