Ask HN: How can I join more tech communities like lobste.rs?

I've been an active reader of Hacker News for a while and am interested in joining the more focused discussions on Lobste.rs, particularly around programming languages and system design. I would be very grateful if an existing member could send an invite my way. My contact email is listed in my HN profile.

If you read lobste.rs FAQ on joining it has a way to join documented there.