I love this! It's so charming and pretty... It's recently been my focus aid for things like meditation and lectures. I'm mostly playing on my phone with an emulator theme I made. I've played through level 105, and I don't want it to end.
I was lucky that a friend sent it to me shortly after I started looking for nonogram games for Steam Deck. You should consider putting it on Steam! I think you'd get plenty of bites for ~$10. (You could pad it to 16:9 with Super Game Boy borders...?)