{inputs, ...}: {
  # When applied, the stable nixpkgs set (declared in the flake inputs) will be accessible through 'pkgs.stable'
  stable = final: _prev: {
    stable = import inputs.nixpkgs-stable {
      system = final.system;
      config.allowUnfree = true;
    };
  };
  # When applied, the master nixpkgs set (declared in the flake inputs) will be accessible through 'pkgs.master'
  master = final: _prev: {
    master = import inputs.nixpkgs-master {
      system = final.system;
      config.allowUnfree = true;
    };
  };
}