Nice thanks! I’ve been wanted to learn it as dealing with cert expirations every year is a pain. My guess is that we will have 24 hour certs at some point.

I don’t know about 24 hours, but it will be 47 days in 2029.

Looks like a good class; is it only available to enrolled students? videos seem to be behind a log-in wall.

Looks like the 2023 lectures weren't uploaded to YouTube, but the lectures from earlier iterations of the class, including 2022, are available publicly. For example, see the YouTube links on https://css.csail.mit.edu/6.858/2022/

(6.858 is the old name of the class, it was renamed to 6.5660 recently.)