Upgraded snowfall lib

modules/nixos/apps/btop/default.nix

@@ -0,0 +1,25 @@
+{
+  options,
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.aa.apps.btop;
+in {
+  options.aa.apps.btop = with types; {
+    enable = mkEnableOption "btop";
+  };
+
+  config = mkIf cfg.enable {
+    aa.home.extraOptions.programs.btop = {
+      enable = true;
+      settings = {
+        theme_background = false;
+        vim_keys = true;
+        color_theme = "gruvbox_dark_v2";
+      };
+    };
+  };
+}