What are you using for the server resource provisioning for your hosted service? Firecracker on KVM? Current services like AWS Fargate/Lightsail containers/Google Cloud run are not competitive pricing wise for dynamic container spawning at scale unless you provision ahead of time. For this sort of services, your managed solution needs to be competitive with e.g. raw compute providers like DigitalOcean and Hetzner.
Enjoy :) It's a lot easier to e.g. fundraise when you can demonstrate prior art and business models.
Might want to collaborate with some yoga places or Whole Foods-style hipster supermarkets. The "detox" crowd loves this sort of thing. (I will admit that the science of many hipster beliefs are not the most reliable but the market is definitely there) If you can successfully market to the Peloton/wannabe-health-conscious-middle-class homemaker crowd, I smell an unicorn in the making.
Another market is for people with allergies/autoimmune problems. It ranges from high tolerance conditions like e.g. mild enczema all the way to scorched-earth-intolerance where a single particle can trigger an allergy attack. This sort of crowd often have to watch what they eat and it can get troublesome if the food is not labeled properly.
We do! Currently we are working with web serial authors to help create narration for their works. Support for azw, mobi formats are coming soon. There is a newsletter box near the bottom. If you subscribe, we will let you know once we launch support for those formats.