[Cachix] Changes to Garbage Collection

[domenkozar]

https://blog.cachix.org/posts/2020-10-01-changes-to-garbage-collection/

[timokau]

Thanks for the update! Cachix’s LRU cache sounds like a great idea. I would love to see something similar in Nix itself some time. To simplify, one could only count access through nix tools itself (nix-shell, nix run etc.) and then define some upper limit for the store size. The implementation in a local store would probably be quite different from the implementation in a binary cache though.