Add nvim-lazy submodule and add plugin configuration.

pkgsets/nvim/gen.nix

@@ -0,0 +1,18 @@
+{
+  lib,
+  config,
+  ...
+}:
+
+lib.mkIf (lib.elem "nvim::gen" config.machine.pkgs) {
+  programs.nvim-lazy.lazyPlugins = [
+    {
+      lazy = true;
+      short = "David-Kunz/gen.nvim";
+      cmd = [ "Gen" ];
+      opts = {
+        model = "deepseek-coder:1.3b-base-q4_0";
+      };
+    }
+  ];
+}