{ lib, pkgs, config, ...}: let
  inherit (lib) mkIf mkEnableOption mkOption types;
  cfg = config.chuj.stuff.documentation;
  user = config.chuj.system.user;
in {
  options.chuj.stuff.documentation = {
    enable = mkEnableOption "documentation";
    cDeveloper = mkOption {
      type = types.bool;
      default = true;
    };
  };

  config = mkIf cfg.enable {
    documentation = {
      enable = true;
      dev.enable = true;
      doc.enable = false;
      info.enable = false;
      man = {
        enable = true;
        generateCaches = false;
        man-db.enable = false;
        mandoc.enable = true;
      };
    };
    home-manager.users.${user}.home.sessionVariables = mkIf cfg.cDeveloper {
      # c docs first
      "MANSECT" = "2:3:3p:3type:1:1p:n:l:8:0:0p:5:4:9:6:7";
    };
    environment.systemPackages = with pkgs; [
      man
      man-pages
      man-pages-posix
      libbsd # bsd man pages
    ];
  };
}