Common Lisp
Common Lisp is a high-level programming language known for its extensive macro system and dynamic, interactive development environment. It is commonly used for artificial intelligence research, scientific computing, and general-purpose programming.
Hello, world code example:
(format t "Hello world!~%")
Popularity: Less than 1% of developers are using or have used this language.*
*According to StackOverflow's 2023 survey.
Repositories on GitHub: 26,451