As I understand the it: OP picked upon a sophisticated example that's multithreaded; the example shows off some fancy Rust techniques which deals with this com

As I understand the it: OP picked upon a sophisticated example that's multithreaded; the example shows off some fancy Rust techniques which deals with this complex case. It's 'fair' to say that OP's code snippet looks complex. But, it's not 'fair' to treat OP's snippet as if it's how one must write a simple blinky program. And it's good to explain that the code is complex because it's dealing with a complex case. I'd somewhat acknowledge the frustration, though. If you're trying to learn something and you take a wrong step or look in the wrong place, you don't have the intuition to figure out "here's what you want to be doing instead".