That's awesome and we love to visit you!
Our Meetup is every first Thursday of the Month and we usually do 1-2 talks with a break in between and also time for socialising and networking before, between and after the talks.
We are usually between 20–60 people and a very uncomplicated group ;-) A room, something to sit on and beamer or big TV will do.
You can find more information here:
https://www.meetup.com/de-DE/awsugHH/