fix all the issues with persistence, and change GLaDOS to btrfs as an experiment

home-manager/hosts/GLaDOS/lillian.nix

@@ -1,6 +1,10 @@
 # This is your home-manager configuration file
 # Use this to configure your home environment (it replaces ~/.config/nixpkgs/home.nix)
-{pkgs, ...}: {
+{
+  pkgs,
+  config,
+  ...
+}: {
   # You can import other home-manager modules here
   imports = [
     # If you want to use modules your own flake exports (from modules/home-manager):
@@ -22,6 +26,12 @@
     vscodium
     unrar
   ];
+  home.file = {
+    nextcloud = {
+      source = config.lib.file.mkOutOfStoreSymlink "/run/media/lillian/big-SSD/Nextcloud/";
+      target = "Nextcloud";
+    };
+  };
 
   programs.mangohud = {
     enable = true;