{
  description = "devshell-dawn";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-25.05";
    nixpkgs-unstable.url = "github:NixOS/nixpkgs/nixos-unstable";
  };

  outputs = {
    self,
    nixpkgs,
    nixpkgs-unstable,
    ...
  }: let
    system = "x86_64-linux";

    pkgs = import nixpkgs {
      inherit system;
    };
    pkgs-unstable = import nixpkgs-unstable {
      inherit system;
    };
  in {
    devShells."${system}".default = pkgs.mkShell {
      packages = with pkgs; [
        gnumake
        bear
        gcc
      ];

      shell = "${pkgs.bash}/bin/bash";
    };

    packages."${system}" = rec {
      default = dawn;
      dawn = pkgs.haskellPackages.developPackage {
        root = ./.;
        modifier = drv:
          pkgs.haskell.lib.addBuildTools drv (with pkgs.haskellPackages; [
            cabal-install
            ghcid
          ]);
      };
    };
  };
}