{
  description = "River (.riv) Compiler";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs?ref=nixos-unstable";

    devenv = {
      url = "github:cachix/devenv";
      inputs.nixpkgs.follows = "nixpkgs";
    };

    naersk.url = "github:nix-community/naersk";
  };

  nixConfig = {
    extra-trusted-public-keys = "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=";
    extra-substituters = "https://devenv.cachix.org";
  };

  outputs =
    {
      self,
      nixpkgs,
      devenv,
      naersk,
      ...
    }@inputs:
    let
      system = "aarch64-darwin";
      pkgs = nixpkgs.legacyPackages.${system};

      naerskLib = pkgs.callPackage naersk { };
    in
    {
      devShells.${system}.default = devenv.lib.mkShell {
        inherit inputs pkgs;
        modules = [
          ./devenv.nix
        ];
      };

      packages.${system}.default = naerskLib.buildPackage {
        src = "./.";
      };
    };
}