# Gojo documentation

Gojo is a small, fast-compiling systems programming language with no garbage collector and no nil. Ownership, without lifetime annotations, frees memory and rules out data races; errors are values; concurrency is structured.

## Learn

* [A tour of Gojo](https://gojo.egoist.dev/docs/tour.md): the language by example, from hello world to scopes and channels. Every program in it is compiled and run by the test suite.

## Reference

* [Language reference](https://gojo.egoist.dev/docs/spec.md): the rules the compiler implements, section by section, with the tests that cover each one.
* [Standard library](https://gojo.egoist.dev/docs/std.md): every module of `std`, generated from its source by `gojo doc`.

## Design

* [Design notes](https://gojo.egoist.dev/docs/design.md): why Gojo looks the way it does, what it takes from Rust, Zig, Swift, Kotlin and Go, and what it leaves out.
* [Concurrency](https://gojo.egoist.dev/docs/concurrency.md): how goroutines became structured concurrency: scopes, cancellation, channels and `select`.
* [Packages](https://gojo.egoist.dev/docs/packages.md): the proposal for packages, versions and a registry, written with coding agents in mind.