Considering that you cant legally sell content made with koikatsu/honey select assets to begin with (assuming this was using HS based models) donations was always the route. You can still do early access to updates for Pat or whatever subscriber platforms etc as long as all content is eventually made public. Copyright shit is a mess lol. Cant put these on gog or steam tho since the HS assets cant be leased. The people that support it will still donate etc, it's best left as a "free" title on platforms like this. As for getting around the current credit card drama, go donations, but just direct like *to the developer* like artists account etc. That way the donations cant be counted towards whatever content, its just a donation to an artist/developer.