I'm not a DBA and know next to nothing about databases. At the moment I can only really contribute to Meta.  

I'd love to contribute and ask/answer questions about Unix/Linux/Python/C/C++/Git/Ansible/Go/Servers/Filesystems/Networking/etc.  I understand that there are only two sites at the moment, but what does the process of adding more look like.  

I understand if the site wants to be careful expanding too quickly without a proper meta model in place, but at the same time I'm using SE until different sites are added.