# flake.nix
{
  description = "LuaLaTeX compilation environment";

  inputs = {
    nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
    flake-utils.url = "github:numtide/flake-utils";
  };

  outputs = { self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = nixpkgs.legacyPackages.${system};

        texlive = pkgs.texlive.combine {
          inherit (pkgs.texlive)
            scheme-medium
            luatex
            latex-bin
            latexmk
            # Add additional packages as needed:
            # amsmath
            # fontspec
            # unicode-math
            # microtype
            # geometry
            # hyperref
            # graphicx
            # xcolor
            ;
        };
      in
      {
        devShells.default = pkgs.mkShell {
          name = "lualatex-env";
          buildInputs = [
            texlive
            pkgs.lua5_3
          ];

          shellHook = ''
            echo "LuaLaTeX environment loaded"
            echo "Available: lualatex, latexmk, luatex"
            lualatex --version | head -1
          '';
        };

        # App for direct compilation
        apps.default = {
          type = "app";
          program = "${texlive}/bin/lualatex";
        };
      });
}