Custom WSGI server not picked up by buildout

PROS: faster, lighter, simpler, no problem in my environments so far
GitHub - jonashaag/bjoern: A screamingly fast Python 2/3 WSGI server written in C.
wsgi_filestream.md · GitHub
A Performance Analysis of Python WSGI Servers: Part 2 | Blog | AppDynamics

CONS: managed by a single developer ....