Yup, it's a real product :) If you want experiment quickly and aren't squeamish about putting your data on the internet, DoltHub is easier to get started with.

Yup, it's a real product :) If you want experiment quickly and aren't squeamish about putting your data on the internet, DoltHub is easier to get started with. DoltLab is just a (limited) self-hosted version of DoltHub.