There is a brilliant talk by David Beazley on asyncio. I used it to write a Discrete Even Simulation tool. Pretty cool to be able to make your own implementation of asyncio and replace the system clock with a simulated time
dabeaz's async talks are imo the most important things you can consume to understand events loops and async, followed closely by njsmith's analysis and criticism of different methods of async invocation and call structures: https://vorpus.org/blog/notes-on-structured-concurrency-or-g...