Ah, finally, the ideas from Lumen are percolating slowly into the mainstream: https://github.com/sctb/lumen

(It's a lisp for both JS and Lua.)

Eslisp is 2015, which is around the same time that Lumen was started: https://news.ycombinator.com/item?id=10264970

Though from the commit history, Lumen was actually started in 2012. Regardless, both projects seem to be roughly the same idea, which I find very interesting.

"block" is better named "do", and "lambda" is better as "fn", but those are minor details. Most of the power of the idea seems present.