Update Nextcloud to 28

hosts/Rupert.nix

@@ -146,6 +146,11 @@ in
           SUBSYSTEM=="video4linux", ATTRS{idProduct}=="0002", ATTRS{idVendor}=="1d6b", SYMLINK+="hdmi_capture"
     '';
 
+    swapDevices = [{
+        device = "/swapfile";
+        size = 8 * 1024;
+    }];
+
     # This value determines the NixOS release from which the default
     # settings for stateful data, like file locations and database versions
     # on your system were taken. It‘s perfectly fine and recommended to leave

hosts/nextcloud.nix

@@ -6,7 +6,7 @@ in
     services.nextcloud = {
         enable = true;
         https = true;
-        package = pkgs.nextcloud27;
+        package = pkgs.nextcloud28;
         hostName = hostName;
         datadir = "/data/nextcloud";
         config = {