dotfiles/nixos/modules/nix-flakes.nix

# SPDX-FileCopyrightText: 2022 Richard Brežák <richard@brezak.sk>
#
# SPDX-License-Identifier: LGPL-3.0-or-later
{
  config,
  lib,
  pkgs,
  ...
}:
with lib; let
  cfg = config.magic_rb.flakes;
in {
  options.magic_rb.flakes = {
    enable = mkEnableOption "Enable flake support";
    nixMaster = mkEnableOption "Whether to enable Nix master for dwarffs.";
  };
  config = mkIf cfg.enable {
    nixpkgs.overlays = mkIf cfg.nixMaster [config.magic_rb.pins.nix.overlay];

    nix = {
      package =
        if !cfg.nixMaster
        then pkgs.nixVersions.stable
        else pkgs.nix;
      extraOptions = ''
        experimental-features = nix-command flakes
      '';
    };
  };
}