[fix] *.nix: reformat with alejandra

system/options.nix

@@ -1,24 +1,21 @@
-{ lib, ... }:
-let
+{lib, ...}: let
   inherit (lib) types;
   # Like mkEnableOption but defaults to true
-  mkDisableOption =
-    option:
+  mkDisableOption = option:
     (lib.mkEnableOption option)
     // {
       default = true;
       example = false;
     };
-  mkImageOption =
-    {
-      description,
-      url,
-      sha256 ? "",
-    }:
+  mkImageOption = {
+    description,
+    url,
+    sha256 ? "",
+  }:
     lib.mkOption {
       inherit description;
       type = types.path;
-      default = builtins.fetchurl { inherit url sha256; };
+      default = builtins.fetchurl {inherit url sha256;};
       defaultText = lib.literalMD "![${description}](${url})";
     };
 
@@ -31,7 +28,7 @@ let
     steamHardwareSupport = mkDisableOption "steam hardware support";
     ydotool = lib.mkOption {
       description = "Jalil's default ydotool configuration.";
-      default = { };
+      default = {};
       type = types.submodule {
         options.enable = mkDisableOption "ydotool";
         options.autoStart = mkDisableOption "autostarting ydotool at login";
@@ -59,17 +56,17 @@ let
     enable = lib.mkEnableOption "jalil's default configuration.";
     dev = lib.mkOption {
       description = "Options for setting up a dev environment";
-      default = { };
-      type = types.submodule { options.enable = lib.mkEnableOption "dev configuration"; };
+      default = {};
+      type = types.submodule {options.enable = lib.mkEnableOption "dev configuration";};
     };
     gui = lib.mkOption {
       description = "Jalil's default configuration for a NixOS gui.";
-      default = { };
+      default = {};
       type = types.submodule gui;
     };
     styling = lib.mkOption {
       description = "Jalil's styling options";
-      default = { };
+      default = {};
       type = types.submodule styling;
     };
     importSSHKeysFromGithub = lib.mkOption {
@@ -86,18 +83,17 @@ let
         `users.users.<name>.openssh.authorizedKeys.keyFiles` on the users you
         want to allow ssh logins.
       '';
-      default = { };
+      default = {};
       example = {
         "jalil-salame" = "sha256:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
       };
       type = types.attrsOf types.str;
     };
   };
-in
-{
+in {
   options.jconfig = lib.mkOption {
     description = "Jalil's default NixOS configuration.";
-    default = { };
+    default = {};
     type = types.submodule config;
   };
 }