{
  description = "tmz - a library for loading Tiled Maps and Tilesets";

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

    flake-parts.url = "github:hercules-ci/flake-parts";

    devshell.url = "github:numtide/devshell";
    treefmt-nix.url = "github:numtide/treefmt-nix";
  };

  outputs = inputs @ {flake-parts, ...}:
    flake-parts.lib.mkFlake {inherit inputs;} {
      imports = [
        inputs.devshell.flakeModule
        inputs.treefmt-nix.flakeModule
      ];
      systems = ["x86_64-linux" "aarch64-linux" "aarch64-darwin" "x86_64-darwin"];
      perSystem = {
        config,
        self',
        inputs',
        pkgs,
        system,
        ...
      }: {
        treefmt.config = {
          projectRootFile = "flake.nix";

          flakeCheck = true;
          flakeFormatter = true;

          programs.zig.enable = true;
          programs.alejandra.enable = true;
        };

        devshells.default = {
          commands = [
            {
              name = "fmt";
              help = "format the repo";
              command = "nix fmt";
            }
            {
              name = "docs";
              help = "generate auto docs";
              command = "zig test -femit-docs src/tmz.zig";
            }
          ];

          packages = [
            pkgs.zig_0_12
            pkgs.kcov
          ];
        };
      };
    };
}