@p Cyberia has the largest amount of TempleOS devs per capita of any other instance, so you can actually ask @Inginsub and @crunklord420 for input directly (maybe @nroot too, if he ever checks his account). @bara also posts a lot of drawings made with Inginsub's HolyPaint; don't remember if it ever went public or not.
Also there's now this: https://github.com/slon-project/slon