I really, really look forward to getting a native Linux version. I just figured out adding the game through Steam and forcing the game to run through Proton gets it working wonders.
Yep, each nail removed makes the strange fruit more effective. Not quite sure the metric, but if you get every nail removed they can get pretty OP in the dungeons, especially in the later floors.
Quick question: do you think saves from previous versions would be able to be carried over into future versions? I would love to keep what progress I have, certainly, but I would not mind at all if I'd have to start over.