{
  inputs = { flake-utils.url = "github:numtide/flake-utils"; };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let pkgs = nixpkgs.legacyPackages.${system};
      in { devShell = import ./shell.nix { inherit pkgs; }; });
}