Working on NJEMU

I just want to say that I'm porting NJEMU to PS2.
So far I have progressed a lot with MVS, and now I'm working with NCDZ (NeoGeo CD), so far I have an audio working (mp3 missing), controls, and video (still some glitches) but it works quite smoothly.

I'm sending this message just to ask what the significant blockers or issues you are facing are, as both apps (NJEMU and NeoCD-PS2) would be quite similar.

Cheer