nixos/config/nix.nix

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{ pkgs, config, lib, ... }:
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let
cfg = config.machine;
in {
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nix = {
maxJobs = 4;
buildCores = 1;
autoOptimiseStore = true;
useSandbox = true;
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package = pkgs.nix_2_4;
allowedUsers = [ "root" ] ++ (map (n: n.name) cfg.administrators);
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extraOptions = ''
build-timeout = 86400 # 24 hours
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experimental-features = nix-command flakes
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'';
binaryCachePublicKeys = [ (lib.fileContents "${cfg.secretPath}/hydra_cache.pub") ];
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trustedBinaryCaches = [
"https://cache.nixos.org"
] ++ cfg.binaryCaches;
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binaryCaches = [
"https://cache.nixos.org"
] ++ cfg.binaryCaches;
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};
}