Thank you! Having a serious course with broad appeal like 18.02sc under an open license is a very big deal.
I'm curious: Is the course still being actively developed? How open or interested would you be to outside contributions to the course? I'm not sure if this will come up in the near future, but in the past, there have been multiple instances of people trying to find open courses for a range of reasons. If this comes up again, I'd be pretty excited to try to get a community of contributors going around 18.02sc. Should the opportunity come up again, is that something you'd be interested in having? If you wanted to fold contributions back into mainline, it would probably improve the course quality overall, but it would likely also diverge from the original MIT course, and maintaining it would be a fair chunk of work (even just in terms of just reviewing contributions). If this lived as an independent fork there would, of course, be no additional work on your part, but also less benefit (other than collecting occasional citations).
edX Insider is here:
It's a fairly modest one-hour mini-course.