Congrats on the release, this is looking really nice!
Actually, I created an online multiplayer version of Rummy myself a long time ago (here's how that looked) – so this brings up a lot of nostalgia! ☺️ (My version used classic Flash, since this was before Starling came into being.)
Rummy is simply a great card game, and lots of fun to play with friends. I'm sure your version (which looks much better than my old one!!) will be a success!! All the best to you!