By the way, if you are interested in nonograms specifically, there is a great website nonograms.org that has tens of thousands nonograms (both B&W and color) and no ads.

Oh yeah, I think I've seen it before. I got some inspiration for some of the nonograms that I made from some different sites. Not all of the sites that I've seen have had a great UI, especially on mobile, which is why I wanted to add nonograms to this site specifically.