I can't download the 2023 pack, all my browsers and download managers block the download because it supposedly contains a virus, not even deactivating windows defender I can download it.
so i switched the nintendont version and was able to play without any problems with the bios and loading wallpaper enabled. I don't know why this error occurs in your mod.
Is there any possibility to add overlays in games? to hide those black edges. It would be interesting for example, gba games with an equal overlay is possible in gbarunner2 from twilight menu ++