I did a book club like this about analytic number theory in 2021. Thanks to participants from the HN community and Libera IRC, that was completed successfully after 120 book club meetings.

This new book club is going to focus on the book Mastering Emacs. If you are interested in learning Emacs or in studying this book together with a group, you are very welcome to join!

The first meeting is today at 20:00 UTC. Schedule, meeting link, and more details are available here: https://susam.net/club/mastering-emacs/