Smalltalk is a dynamically-typed, object-oriented programming language known for its simplicity and minimalist syntax. It is primarily used for teaching, research, and creating graphical user interfaces.

Hello, world code example:

Transcript show: 'Hello world!'; cr.

Popularity: Less than 1% of developers are using or have used this language.*
*According to StackOverflow's 2023 survey.

Repositories on GitHub: 11,087