You are meant to use a library like cppcoro https://github.com/lewissbaker/cppcoro https://github.com/lewissbaker/cppcoro rather than building all this on your

You are meant to use a library like cppcoro https://github.com/lewissbaker/cppcoro https://github.com/lewissbaker/cppcoro rather than building all this on your own. But for folks working on gamedev libs, high-performance async, etc would probably prefer making their own task/promise-type for hand-crafted customization.