Janet is a functional and imperative programming language. It runs on Windows, Linux, macOS, BSDs, and should run on other systems with some porting. The entire language (core library, interpreter, compiler, assembler, PEG) is less than 1MB. You can also add Janet scripting to an application by embedding a single C source file and a single header.
Feel free to ask questions and join discussion on the Janet Gitter Channel. Gitter provides matrix and IRC bridges as well for users who prefer those.
For help, you can also check out Janet Docs for Janet documentation with user-provided examples. Feel free to contribute your own examples here to help fellow programmers.
Janet makes a good system scripting language, or a language to embed in other programs. Think Lua or Guile. Janet also can be used for rapid prototyping, dynamic systems, and other domains where dynamic languages shine. Implemented mostly in standard C99, Janet runs on Windows, Linux and macOS. The few features that are not standard C (dynamic library loading, compiler specific optimizations), are fairly straightforward. Janet can be easily ported to new platforms.
A REPL is launched when the janet binary is invoked with no arguments. Pass the -h flag to display the usage information. Individual scripts can be run with janet myscript.janet