{
  inputs.nixpkgs.url = "nixpkgs/nixos-unstable";

  outputs = { nixpkgs, ... }:
    let
      system = "x86_64-linux";
      pkgs = import nixpkgs { inherit system; };
    in
    {
      devShells.${system}.default = pkgs.callPackage ./shell.nix { inherit pkgs; };
    };
}