We're using Waterhole for the official community forum for the blank.page writing app. It's still early days, but I think it already looks great, and we're excited to evolve it with more Waterhole updates.
The design and implementation were done in collaboration with @Manuel, whom I highly recommend talking to if you're considering a Waterhole community. He is incredibly knowledgeable when it comes to online communities.
Also, thanks to @Toby for being responsive and listening to feedback.
See you all at blank.page/cafe!