Adopt a Code of Conduct (and decide how we enforce it)
I think it's a required step to ensure everyone feels safe and welcomed in the community. We have to think about common issues that can arise between members, and how we want to tackle them.
There are probably a lot of CoC out there we can get inspiration from.
As I have no prior experience in choosing a CoC and enforce it, I'd really appreciate any input about this, especially from people who beneficiate from such CoC: what do you expect from a CoC? What is mandatory?