Interesting! I use a very similar process for creating exams and student projects, but am the only one in my department who does so. Are any of your processes/tools publicly available? (Mine are basically cobbled together in Haskell and Python.)
I would believe the same goes for our own research static analysis and autotrading platform (in our case SQL) which probably every CS department also has quite a few of.
I wouldn't put my hopes up for anything publicly available that fits your platform and has a bus factor higher than 1.
Every now and then, I ponder putting some of my scripts together into something I could actually hand over to someone else, but have not yet had the time.