Support
The documentation hopefully answers most common question. In case you find it lacking, have a problem or want to suggest a feature, you have a couple of options.
Issue tracker
For all sorts of issues and feature requests it is easiest if you just open a new ticket in the issue tracker on GitHub. This way they are structured and I can directly reply to you.
Telegram group
We also have a Telegram group where developers and users hang out, discuss the application, bugs and features.