os/modules/x-os/nix.nix

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Nix
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{ config, pkgs, lib, inputs, ... }:
{
nix = {
# Improve nix store disk usage
autoOptimiseStore = true;
gc.automatic = true;
optimise.automatic = true;
# Prevents impurities in builds
useSandbox = true;
# give root and @wheel special privileges with nix
trustedUsers = [ "root" "@wheel" ];
# This is just a representation of the nix default
systemFeatures = [ "nixos-test" "benchmark" "big-parallel" "kvm" ];
# Generally useful nix option defaults
extraOptions = ''
min-free = 536870912
keep-outputs = true
keep-derivations = true
fallback = true
# used by nix-dram
default-flake = flake:nixpkgs
'';
};
}