In the beginning of 2020, I had an idea for a fun programming language called #Henlang

> The name has many meanings. First of all, henlang is short for incomprehensible language. Next, hen stands for japanese 変 which means strange. Finally, hen is an animal also known as chicken, and Chicken Scheme is my favorite Scheme implementation.

Find all positive numbers in a list:

list←[3-,2-,1-,0,1,2,3]
list∃!(+?)$
% [1,2,3]

Find some notes here and code: https://github.com/bouncepaw/henlang