{ inputs, ... }:

{
  environment.etc."nix/flake-channels/nixpkgs".source = inputs.nixpkgs;

  nix = {
    registry.nixpkgs.flake = inputs.nixpkgs;
    nixPath = [ "nixpkgs=/etc/nix/flake-channels/nixpkgs" ];
    settings = {
      experimental-features = [ "nix-command" "flakes" ];
      builders-use-substitutes = true;
      auto-optimise-store = true;
      warn-dirty = false;
      trusted-users = [ "@wheel" ];
      substituters = [
        "https://nix-community.cachix.org"
      ];
      trusted-public-keys = [
        "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
      ];
    };
  };

  nixpkgs.config.allowUnfree = true;
}