nichts/modules/other/xdg.mod.nix

{
  config,
  pkgs,
  ...
}:
let
  inherit (config.meta.mainUser) username;

  primary_browser = "Librewolf.desktop";
  mail_client = "thunderbird.desktop";
  file_manager = "nautilus.desktop";
  media_player = "mpv.desktop";
  image_viewer = "imv.desktop";
  text_editor = "helix.desktop";
  terminal = "foot.desktop";
  pdf_viewer = "zathura.desktop";
in
{
  environment = {
    systemPackages = [ pkgs.xdg-utils ];
    variables = {
      TERMINAL = "${terminal}";
      XDG_CACHE_HOME = "/home/${username}/.config";
    };
  };

  xdg = {
    autostart.enable = true;
    menus.enable = true;
    icons.enable = true;
    mime = {
      enable = true;
      defaultApplications = {
        "text/html" = [ primary_browser ];
        "x-scheme-handler/http" = [ primary_browser ];
        "x-scheme-handler/https" = [ primary_browser ];
        "x-scheme-handler/about" = [ primary_browser ];
        "x-scheme-handler/unknown" = [ primary_browser ];
        "x-scheme-handler/mailto" = [ mail_client ];
        "message/rfc822" = [ mail_client ];
        "x-scheme-handler/mid" = [ mail_client ];
        "inode/directory" = [ file_manager ];
        "audio/mp3" = [ media_player ];
        "audio/ogg" = [ media_player ];
        "audio/mpeg" = [ media_player ];
        "audio/aac" = [ media_player ];
        "audio/opus" = [ media_player ];
        "audio/wav" = [ media_player ];
        "audio/webm" = [ media_player ];
        "audio/3gpp" = [ media_player ];
        "audio/3gpp2" = [ media_player ];
        "video/mp4" = [ media_player ];
        "video/x-msvideo" = [ media_player ];
        "video/mpeg" = [ media_player ];
        "video/ogg" = [ media_player ];
        "video/mp2t" = [ media_player ];
        "video/webm" = [ media_player ];
        "video/3gpp" = [ media_player ];
        "video/3gpp2" = [ media_player ];
        "image/png" = [ image_viewer ];
        "image/jpeg" = [ image_viewer ];
        "image/gif" = [ image_viewer ];
        "image/avif" = [ image_viewer ];
        "image/bmp" = [ image_viewer ];
        "image/vnd.microsoft.icon" = [ image_viewer ];
        "image/svg+xml" = [ image_viewer ];
        "image/tiff" = [ image_viewer ];
        "image/webp" = [ image_viewer ];
        "text/plain" = [ text_editor ];
        "application/pdf" = [ pdf_viewer ];
      };
    };
  };
}