Could not write to / read from Wii System Memory on SteamOS

[OtakuGamerDXD3]

After compiling on SteamOS, error is gotten on launch "Could not write to / read from Wii System Memory." I've tested this across two different SteamDecks so far and tried giving WheelWizard full disk access through Flatseal to no results.

[T3CHNOLOG1C]

^^ Same result here, same setup methods on SteamOS 3.18.16, Steam Deck

[gunnaraas]

I replicated the issue, using flatpak installed via Discover store.

This workaround helped:

1. In Desktop Mode, navigate to /home/deck/.var/app/io.github.TeamWheelWizard.WheelWizard/config/CT-MKWII/Recomp/Install/

2. Add WiiCompiled-Setup.AppImage to Steam

3. In Steam on Desktop Mode, navigate to the game you just added, rename it, and paste the following in the Launch Options text box:
   XDG_DATA_HOME="/home/deck/.var/app/io.github.TeamWheelWizard.WheelWizard/data" APPIMAGE_EXTRACT_AND_RUN=1 %command% launch-base

This unfortunately does bypass many of the features of WheelWizard, most notably Mii management and multiplayer, but at least does get the game to run for single player.