Really glad you appreciate! We use it to teach introductory programing courses and the simplistic UI is purpose-built for that use-case.
It really is a joy to program with, but we're struggling a bit to communicate everything it can do. We are working hard on that front and should have a landing page and better explanatory material soon. We're very interested in feedback. If anybody wants to learn more, just contact me through the email in my profile.
Instead of a landing page, may I suggest a '?' button, or at least putting the landing page on https://codeboot.org/something and redirecting from referrers but not direct loads?
Browsers are getting more and more aggressive about deleting cookies / making cookies ephemeral, and nothing is more annoying that dealing with one or multiple pop-ups on each page visit.
For an example of how bad it can get, load LMarena in a private window.
Cookie pop-up, agree > type something, press enter > ToS pop-up, agree > press enter again > processing > answer > type somethi- verify Cloudflare, agree > type something
Other than that I don't have much comments yet except that it seems a nice product!
No welcome screen, just dropped straight into the main interface which itself has no excess buttons or styling wasted on it.
To me this is beautiful.