{
  description = "Project templates";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs";
    flake-parts.url = "github:hercules-ci/flake-parts";
    treefmt-nix.url = "github:numtide/treefmt-nix";
    systems.url = "github:nix-systems/default";
  };

  outputs =
    inputs@{ self, flake-parts, ... }:
    flake-parts.lib.mkFlake { inherit self inputs; } {
      systems = import inputs.systems;

      imports = [ inputs.treefmt-nix.flakeModule ];

      flake.templates = {
        class = {
          description = "Class template";
          path = ./class;
        };
        paper = {
          description = "TeX paper template";
          path = ./paper;
        };
        tex = {
          description = "Generic TeX projects";
          path = ./tex;
        };
      };

      perSystem =
        { config, pkgs, ... }:
        {
          treefmt = {
            programs = {
              nixfmt = {
                enable = true;
                strict = true;
              };
            };
          };

          devShells.default = pkgs.mkShellNoCC {
            inputsFrom = [ config.treefmt.build.devShell ];
            nativeBuildInputs = with pkgs; [
              nixd
              deadnix
            ];
          };

        };
    };
}