Complain about the language or documentation, but array language communities are absolutely friendly to outsiders! This tutorial lists some active forums, give them a try: https://github.com/razetime/ngn-k-tutorial/tree/main?tab=rea...

Also, have to shout out the APL Orchard, where Adám will give any visitor a personal tutorial: https://chat.stackexchange.com/rooms/52405/the-apl-orchard