My recent fun public focus now is to power Scroll, (https://scroll.publicdomaincompany.com/). "Scrolldown" now powers my blog (an example post: https://github.com/breck7/breckyunits.com/blob/main/insist-o...). I think from what I'm seeing so far Scrolldown may be one of the first Tree Lang breakouts. Simple but powerful from extensibility.

TreeBase is used extensively at a few moderately successful websites. I think Tree Notation (or 2D langs generally) will be used OOMs more in this domain. It integrates so incredibly seamlessly with Git.

At Our World in Data Tree Notation is used for the researchers to build interactive data visualizations (https://www.youtube.com/watch?v=vn2aJA5ANUc&t=145s). That one uses it's own implementation called "GridLang" because I didn't want to depend on jtree, which is a bit too R&D for a site with that kind of traffic. The 2D lang/Tree Notation ideas are so simple that it's easy to roll your own code and you don't have to use "jtree". I view the "jtree" project in a way as just an experiment to confirm that yes, you can do anything/everything without any visible syntax characters. Space is all you need.

On the contracting side I'm helping a crypto group with a shockingly ambitious 2-D crypto.