{
  description = "TeX project";

  inputs = {
    nixpkgs.url = "github:nixos/nixpkgs";
    flake-parts.url = "github:hercules-ci/flake-parts";
    tex-shell.url = "git://git.mathematicaster.org/tex-shell";
    systems.url = "github:nix-systems/default";
  };

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

    imports = [
      inputs.tex-shell.flakeModules.default
    ];

    perSystem = { pkgs, config, ... }: {

      texShell = {
        scheme = pkgs.texliveSmall;
        latexmk = {
          enable = true;
          rc = /* perl */ ''
            $out_dir = '.latex-build';
            $pdf_mode = 1;
            $pdflatex = 'pdflatex -interaction=nonstopmode %O %S';
          '';
        };
      };

      devShells.default = pkgs.mkShell {
        inputsFrom = [
          config.devShells.texShell
        ];
      };
    };
  };
}