As you said there is just omz but all of us here on the forum help him out. Pythonista just received a really big update recently and from my understanding he is already working on the next one.
Welcome!
This is the community forum for my apps Pythonista and Editorial.
For individual support questions, you can also send an email. If you have a very short question or just want to say hello — I'm @olemoritz on Twitter.