Is iRobot Roomba component compatible with Open Interface?

I have an old Roomba 770 and I found an intresting hardware to add wifi connectivity. Of course a lot of similar DIY solutions are valid.

Question: does iRobot Roomba component use SCI protocol over wifi? Is it compatible with a non-native wifi Roomba?

If not, which is your experience? Could the ajax interface be a smart way to integrate Roomba with Home Assistant?

Thank you