There's been a few recent ones, so here's a list of memorable new programming models that combine the usual prefix/infix/postfix/spreadsheet.
https://pauan.github.io/nulan/doc/tutorial.html
https://www.hackerfoo.com/posts/popr-tutorial-0-dot-machines.html
https://wiki.xxiivv.com/site/modal by @wryl
https://dziban.net/note/nova by @wryl
https://xorvoid.com/forsp.html
https://cognate-lang.github.io/learn.html
I'm missing an old one, a lisp-like where juxtaposition was function application. Please share if it sounds familiar.
@akkartik didn't see popr before, thanks!