Don't add `substituters = https://cache.lix.systems` to `/etc/nix/nix.conf` #64

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opened 2025-12-24 20:46:26 +00:00 by rbt · 0 comments

rbt commented

2025-12-24 20:46:26 +00:00

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From lix-project/lix#863:

cache.lix.systems is quite slow, and doesn't contain anything but releases. We should stop putting it in the default config in the installer and then enable it only for nix upgrade-nix, IMO.

Relevant code:

         // Set up our substituters.
         settings.insert(
             "substituters".to_string(),
             "https://cache.nixos.org https://cache.lix.systems".to_string(),
         );
         settings.insert(
             "trusted-public-keys".to_string(),
             "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= cache.lix.systems:aBnZUw8zA7H35Cz2RyKFVs3H4PlGTLawyY5KRbvJR8o=".to_string()
         );

From lix-project/lix#863: > `cache.lix.systems` is *quite slow*, and doesn't contain anything but releases. We should stop putting it in the default config in the installer and then enable it only for `nix upgrade-nix`, IMO. Relevant code: https://git.lix.systems/lix-project/lix-installer/src/commit/81a5d136aaf6b81adc044171f1eb118220d99b9e/src/action/common/place_nix_configuration.rs#L136-L144

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