My most immediate goal with NightCafe Creator has been to increase the conversion rate of new visitors creating artworks on the site. The first step was to add Unsplash search so that great images were easy to find, and I recently completed the second step, which was to remove the hurdle of having to sign up before being able to create something.
Firebase was a great help. Anonymous users are actually really easy to implement, and it's made it so much easier for new users to reach the core value of the app. If anyone wants any help doing a similar thing I'm happy to answer any questions :)
Over the holidays I will hack on a few features, but my focus will be on growth and marketing for a little while.