nixos/modules/system/nix/default.nix


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{ config, pkgs, lib, inputs, ... }:

{
  nix.settings.experimental-features = [ "nix-command" "flakes" ];
  nixpkgs.config.allowUnfree = true;

  nix.gc = {
    automatic = true;
    dates = "weekly";
    options = "--delete-older-than 7d";
  };

  programs.nix-ld.enable = true;
  services.envfs.enable = true;
  security.polkit.enable = true;

  environment.variables = {
    SSL_CERT_FILE = "/etc/ssl/certs/ca-certificates.crt";
    NIX_SSL_CERT_FILE = "/etc/ssl/certs/ca-certificates.crt";
  };
}