{ description = "A tree-sitter grammar for Tiger"; inputs = { flake-utils = { type = "github"; owner = "numtide"; repo = "flake-utils"; ref = "master"; }; nixpkgs = { type = "github"; owner = "NixOS"; repo = "nixpkgs"; ref = "nixpkgs-unstable"; }; pre-commit-hooks = { type = "github"; owner = "cachix"; repo = "pre-commit-hooks.nix"; ref = "master"; inputs = { flake-utils.follows = "flake-utils"; nixpkgs.follows = "nixpkgs"; }; }; }; outputs = { self , flake-utils , nixpkgs , pre-commit-hooks }: flake-utils.lib.eachDefaultSystem (system: let pkgs = import nixpkgs { inherit system; }; in rec { checks = { pre-commit = pre-commit-hooks.lib.${system}.run { src = ./.; hooks = { nixpkgs-fmt = { enable = true; }; }; }; }; devShells = { default = pkgs.mkShell { nativeBuildInputs = with pkgs; [ nodejs tree-sitter ]; inherit (checks.pre-commit) shellHook; }; }; }); }