added stuff

nyx/modules/options/usrEnv/desktop.nix

@@ -0,0 +1,85 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}: let
+  inherit (lib) mkOption types;
+
+  cfg = config.modules.usrEnv;
+  sys = config.modules.system;
+in {
+  options.modules.usrEnv = {
+    desktop = mkOption {
+      type = types.enum ["none" "Hyprland" "sway" "awesomewm" "i3"];
+      default = "none";
+      description = ''
+        The desktop environment to be used.
+      '';
+    };
+
+    desktops = {
+      hyprland.enable = mkOption {
+        type = types.bool;
+        default = cfg.desktop == "Hyprland";
+        description = ''
+          Whether to enable Hyprland wayland compositor.
+
+          Will be enabled automatically when `modules.usrEnv.desktop` is set to "Hyprland".
+
+        '';
+      };
+
+      sway.enable = mkOption {
+        type = types.bool;
+        default = cfg.desktop == "sway";
+        description = ''
+          Whether to enable Sway wayland compositor.
+
+          Will be enabled automatically when `modules.usrEnv.desktop` is set to "sway".
+        '';
+      };
+
+      awesomwm.enable = mkOption {
+        type = types.bool;
+        default = cfg.desktop == "awesomewm";
+        description = ''
+          Whether to enable Awesome window manager
+
+          Will be enabled automatically when `modules.usrEnv.desktop` is set to "awesomewm".
+        '';
+      };
+
+      i3.enable = mkOption {
+        type = types.bool;
+        default = cfg.desktop == "i3";
+        description = ''
+          Whether to enable i3 window manager
+
+          Will be enabled automatically when `modules.usrEnv.desktop` is set to "i3".
+        '';
+      };
+    };
+
+    useHomeManager = mkOption {
+      type = types.bool;
+      default = true;
+      description = ''
+        Whether to enable the usage of home-manager for user home management. Maps the list
+        of users to their home directories inside the `homes/` directory in the repository
+        root.
+
+        Username via `modules.system.mainUser` must be set if this option is enabled.
+      '';
+    };
+  };
+
+  config = {
+    assertions = [
+      {
+        assertion = cfg.useHomeManager -> sys.mainUser != null;
+        message = "modules.system.mainUser must be set while modules.usrEnv.useHomeManager is enabled";
+      }
+    ];
+  };
+}