{
  config,
  lib,
  pkgs,
  inputs,
  ...
}: {
  imports = [
    inputs.nix-index-database.nixosModules.default
  ];

  nix = {
    gc.automatic = false; # use nh cleaner instead

    # Make builds run with low priority so my system stays responsive
    daemonCPUSchedPolicy = "idle";
    daemonIOSchedClass = "idle";

    settings = {
      flake-registry = "${inputs.flake-registry}/flake-registry.json";

      extra-experimental-features = ["nix-command" "flakes" "pipe-operators"];
      auto-optimise-store = true;
      use-xdg-base-directories = true;
    };

    # Disable channels
    channel.enable = false;
  };
  nixpkgs.config.allowUnfree = true;

  programs = {
    nh = lib.mkIf config.collinux.terminal.programs.nh.enable {
      enable = true;
      flake = "/home/${config.collinux.user.name}/nixos";
      clean.enable = true;
    };
    nix-index-database.comma.enable = true;
  };

  environment.systemPackages = [pkgs.cached-nix-shell];

  nixpkgs.hostPlatform = "x86_64-linux";
  system.stateVersion = "25.11";
}