{ config, lib, pkgs, ... }: let cfg = config.xdg.mimeApps._setDefaultApplications; mimeDir = ./resources/xdg-mime; getApplicationMimeTypes = applicationName: lib.filter (s: s != "") (lib.splitString "\n" (builtins.readFile "${mimeDir}/${applicationName}")); getMimeTypeApplicationList = applicationName: lib.mkMerge (lib.map (mimetype: { "${mimetype}" = [ "${applicationName}.desktop" ]; } ) (getApplicationMimeTypes applicationName)); defaultApplications = lib.mkMerge (lib.mapAttrsToList (appPath: pathType: lib.mkIf (pathType == "regular") (getMimeTypeApplicationList appPath)) (builtins.readDir mimeDir)); in { options.xdg.mimeApps._setDefaultApplications = { enable = lib.mkEnableOption "set default applications as defined in the resources dir"; }; config = lib.mkIf cfg.enable { xdg.mimeApps = { enable = true; inherit defaultApplications; }; }; }