No mention of TikZ. Realtime TikZ would be really useful to me. I will wait and see what their https://texlode.com service is like for that.
> 3:27:36 @lodepublishing : I have tested tikz but not yet tcolorbox. TikZ works, with some wiring.
But a different tool was posted here a few weeks ago with real-time support for TikZ [1] if you're interested in something that you can use immediately.
[1] is a totally different kind of tool that generates unmaintainable code full of absolute positions.