I've found this to be a significant problem in testing a side project I've been working on for making music together over the Internet (https://echo.jefftk.com

I've found this to be a significant problem in testing a side project I've been working on for making music together over the Internet (https://echo.jefftk.com https://echo.jefftk.com). I can load test the backend by simulating requests reasonably easily, but the hard part is all the cases where my simplistic testing is unrealistic.