It seems for most part Quarkus is incompatible with moqui; it may have different architectural goals and designs.
I also had multiple attempts in introducing re-architecture to OFBiz and my expectation is that it is highly unlikely for any such initiatives to follow through. I was able to switch the framework from ant to gradle, and refactored some of the core code, but faced big difficulties going any further due to both community and technical / design problems.
One of the things that I deeply appreciate about moqui is the care for quality, not number of commits. This is a major reason why we shifted our projects from OFBiz to moqui and had success in launching large and successful projects on it.