# Neyuki documentation
- [The language](language.md): a tour of the syntax and semantics, from variables to objects and modules.
- [Library reference](reference/README.md): every built-in function and bundled module, one section per function.
- [Tools and runtime](runtime.md): the `neyuki` command, linting, bytecode, packages, memory and limits.
Every example is a `.nyk` file you can run with `neyuki file.nyk`.