Only one node can be transmitting at once, or signals can be lost, so nodes automatic hold back until the channel is clear. Meshtastic seems reliant on having as little traffic as possible, with the way ot works right now, it can easily be overwhelmed.

Meshtastic can’t even keep more than a few hundred nodes in memory…

Start with the basics of programming. Game dev is a specialization, and it can wait until after you’ve learned the basics.

Feel free to pick any language to start with. Your first language is just a medium for learning basic programming concepts, you’ll eventually migrate elsewhere. Or not. Programming concepts are your real skills, language is just a language. Like Japanese engineer or Italian engineer, engineering is the real skill and language is just a language.

Books walk you through everything. You can proceed through the chapters at your own pace. They’re free if you borrow them from the library.