{
  description = "tree-sitter implementation for nix-shell scripts";
  inputs = {
    nixpkgs.url = "nixpkgs/nixos-23.05";
    flake-utils.url = github:numtide/flake-utils;
  };

  outputs = { self, nixpkgs, flake-utils }:
    with flake-utils.lib; eachSystem allSystems (system:
    let
      pkgs = import nixpkgs {
        inherit system;
      };
    in rec {
      packages.tree-sitter-nixshell = pkgs.callPackage ./default.nix { };
      defaultPackage = packages.tree-sitter-nixshell;

      devShells.default = pkgs.callPackage ./shell.nix { };

      apps.clean = {
        type = "app";
        program = builtins.toString (pkgs.writeShellScript "clean" ''
          # remove build artifacts
          rm -f Cargo.toml binding.gyp
          rm -rf bindings/ src/
        '');
      };
    });
}