I bought Sparrow Solitaire on Catalog and absolutely love it, it’s easily already my most played playdate game. It’s super relaxing to play and the amount of detail and polish you’ve put into it is incredible. It’s beautiful to look at and the music is also excellent, and the number of settings you give the player is super impressive.
My one request (and I totally understand that it’s probably not feasible) would be the option to restart a problem with the same tile arrangement on failure. I think that after an attempt goes wrong, it would be really satisfying to tackle the same problem again and solve it the second time. I don’t know how that would affect the scoring system, I’m guessing there would be a large penalty or possibly a 0 score but I’m more motivated than completing the problem than by the score.