perf: make nix substitutions faster

2025-01-22 09:34:37 +01:00 · 2025-01-22 09:34:37 +01:00 · 0e103b7e10
commit 0e103b7e10
parent 57a9709745
2 changed files with 9 additions and 9 deletions
--- a/modules/programs/nix.nix
+++ b/modules/programs/nix.nix
@ -68,13 +68,17 @@ in

      settings = {
        substituters = [
-          "https://cache.nixos.org/"
+          "https://cache.nixos.org?priority=1"
        ];
        trusted-public-keys = [
          "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
        ];

        trusted-users = [ "root" "@wheel" ];
+
+        # https://bmcgee.ie/posts/2023/12/til-how-to-optimise-substitutions-in-nix/
+        http-connections = 128;
+        max-substitution-jobs = 128;
      };
    };
  };