HeyItsDiogenes
Specifically:
A hard real-time operating system has less jitter than a soft real-time operating system. The chief design goal is not high throughput, but rather a guarantee of a soft or hard performance category. A RTOS that can usually or generally meet a deadline is a soft real-time OS, but if it can meet a deadline deterministically it is a hard real-time OS.
Async, non-blocking, and event-driven have nothing to do with real-time.
This web framework has nothing to do with real-time.
Stop using terminology you don't understand.
A good example would be how terrible the code the Google Founders wrote. Their initial engineering hires had to rewrite everything from scratch.
And the Google Founders did have a background that would lend well to coding.