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Fennel is a programming language that brings together the simplicity, speed, and reach of Lua with the flexibility of a lisp syntax and macro system.
- Full Lua compatibility: Easily call any Lua function or library from Fennel and vice-versa.
- Zero overhead: Compiled code should be just as efficient as hand-written Lua.
- Compile-time macros: Ship compiled code with no runtime dependency on Fennel. Standalone binaries can be as small as 300kb.
- Embeddable: Fennel is a one-file library as well as an executable. Embed it in other programs to support runtime extensibility and interactive development.
Anywhere you can run Lua code, you can run Fennel code.