Wren: A classy little scripting language

Wren is a small, fast, class-based scripting language that combines elements of Smalltalk, Lua, and Erlang with a modern syntax. It features lightweight fibers for concurrency, a compact object representation for speed, and a focus on class-based programming. Wren is designed for embedding in applications, with no dependencies and an easy-to-use C API. The language is concise, well-commented, and can be tried in a browser. It is actively maintained on GitHub by Bob Nystrom and collaborators.