{
  description = "A very basic flake";

  inputs = {
    # nixpkgs.url = "github:NixOS/nixpkgs/24.11";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixpkgs-unstable";

    sbrow.url = "github:sbrow/nix";

    flake-parts.url = "github:hercules-ci/flake-parts";
  };

  outputs = inputs@{ self, flake-parts, nixpkgs, nixpkgs-unstable, sbrow }:
    flake-parts.lib.mkFlake { inherit inputs; } {
      systems = [ "x86_64-linux" ];

      perSystem = { pkgs, system, ... }: {
        _module.args.pkgs = import nixpkgs {
          inherit system;
          config.allowUnfree = true;

          overlays = [
            (final: prev: {
              unstable = import nixpkgs-unstable {
                inherit system;

                config.allowUnfree = true;
              };
            })
          ];
        };

        formatter = pkgs.nixpkgs-fmt;

        devShells.default = pkgs.mkShell
          {
            buildInputs = with pkgs; [
              yarn
            ];
          };
      };
    };
}