This is my first time looking to go to Coachella. I live in Austin and I've been to ACL for a few years now, but I want to see what else is out there.

I really want to make sure I can go this year, so...first things first.
When do the non-advance tickets typically go on sale? Can I even buy them if I'm not a local? Is there a mailing list I can sign up for (I'm assuming likely through Frontgate)?
I'm guessing the lineup will be announced near that that usually before or after the tickets are sold?

Apologies if this is a common post. I spent maybe a half hour looking around and couldn't find anything on this.