There's still still a lot of work to be done but it's now playable. The latest release has added npc and quest sync: Version 0.6.0 released
You can download it from GitHub.
To play, you'll need: a copy of Morrowind GOTY (you need the two expansions), OpenMW and tes3mp
Oh, and it's playable on Windows and Linux (I think Mac too).
If anyone's interested in playing we could group up on Steam or Discord.