The one I went to started with an intro from the chair, the principles got handed round and we took in turns reading them, then a meditation and then time to discuss. I think they have suggested meeting formats and meditations on the website too.
I was involved with refugee recovery and dharma punx for a little while and went to the national convention two years ago. I’m not so active with my mediation these days, but I still learned so much about impermanence and staying in the moment. It’s a huge part of my recovery. I couldn’t have done it without what I’ve learned from AA, but a lot of refuge/dharma people are also 12 steppers. Good luck to you!