Use postgres instead of sqlite

configuration.nix

@@ -201,6 +201,14 @@
       "100.64.0.3"
     ];
     caching.apcu = true;
+
+    # Auto update apps
+    autoUpdateApps = true;
+
+    # Use postgres
+    database.createLocally = true;
+    config.dbType = "pgsql";
+    config.dbpassFile = "/var/nextcloud-db-pass";
   };
   services.phpfpm.pools.nextcloud.settings = {
     "listen.owner" = config.services.caddy.user;