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Ca-derivations: Difference between revisions

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→Using CA derivations: It is very different and needs to be opt-in, certainly at the Nix level, probably also at the Nixpkgs level
The NGI0 Cache doesn't exist since at least summer of 2024
 
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It is also possible to mark all the derivations as content-addressed by default, by passing <code>config.contentAddressedByDefault = true</code> as argument to nixpkgs.
It is also possible to mark all the derivations as content-addressed by default, by passing <code>config.contentAddressedByDefault = true</code> as argument to nixpkgs.
Be warned that although there’s a [https://hydra.ngi0.nixos.org/jobset/ca-test/nixpkgs hydra instance testing ''some stuff''], it’s not a channel blocker, and [https://cache.ngi0.nixos.org its associated binary cache] won’t contain nearly as many things as <code>cache.nixos.org</code>. So doing so will probably entail rebuilding most of your system yourself, and you ''might'' encounter some unexpected breakages.
To use the binary cache <code>cache.ngi0.nixos.org</code> to speed up your builds, merge the following into your <code>nix.conf</code>:
<pre>substituters = https://cache.ngi0.nixos.org/
trusted-public-keys = cache.ngi0.nixos.org-1:KqH5CBLNSyX184S9BKZJo1LxrxJ9ltnY2uAs5c/f1MA=</pre>
== Ensuring that a derivation is properly content-addressed ==
== Ensuring that a derivation is properly content-addressed ==


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