None at Notebook.ai other than being active and responsive on social media and linking various Google Forms on-site for reporting bugs, requesting features, etc

None at Notebook.ai other than being active and responsive on social media and linking various Google Forms on-site for reporting bugs, requesting features, etc. Follow-up on those is by email. Since we're open source, we also invite anyone to create issues on GitHub as well, though it's usually the more technical crowd that do so. Reasoning: 1) it's free, 2) quality customer service is free advertising when it's public, and 3) there's less friction to "get in touch" with us (and follow up quickly) when it's on a platform a user is already using. Would definitely love to hear about a (free) quality customer service tool if there are any out there, though. I think we're starting to outgrow Forms/email, as some way to aggregate common requests together (without manually building a spreadsheet, like now) and sort/filter/rank them would be beneficial.