Jan,
Have been reading through the thread you pointed out. Clear indeed now. Running a Roon Extension is not that trivial.
Adding this to RoPieee is rather simple I guess. What would be nice if we can come up with a kind of convention on how to provide them (on github). RoPieee would then have a ‘register’ of ‘certified’ Roon extensions. With a simple click on the RoPieee interface you can install it then.
Just thinking out loud, with a glass of good Macallan. So maybe this doesn’t make that much sense 
Anyhow, let me know what you think!
Regards Harry