If you're looking for support:

• Issues: this is the most dynamic channel at the moment, you might find an answer to your question by searching open or closed issues.
• Wiki pages: might not be as up-to-date as we all would like (hey, you can also contribute in the documentation!).
• Gitter channel: you have better chances to get fast answers from project contributors or other ESPurna users. (also available with any Matrix client!)
• Issue a question: as a last resort, you can open new question issue on GitHub. Just remember: the more info you provide the more chances you'll have to get an accurate answer.