Anywhere, apparently and bingo, THAT is the problem here. *eye daggers every non-Xanadu Next-owning Steam user*
It's a vanishingly small number of people that have this problem, but I actually imported the physical copy of Xanadu Next years ago and played it with a fan translation ages ago so I didn't rebuy it on Steam.
I might rebuy it some day just for the QOL programming and UI improvements, but not right now.