Resources about the Urbit OS.

Overview

Arvo is Urbit's functional operating system, written in Hoon. It's composed of modules called vanes, each of which has its own folder:

Ames

Ames is the name of our network and the vane that communicates over it. It's an encrypted P2P network composed of instances of the Arvo operating system.

Behn

Behn is our timer. It allows vanes and applications to set and timer events, which are managed in a simple priority queue.

Clay

Clay is our filesystem and revision-control system.

Dill

Dill is our terminal driver. Unix sends keyboard events to dill from the terminal, and dill produces terminal output.

Eyre

Eyre is our HTTP server. Unix sends HTTP messages to %eyre, and %eyre produces HTTP messages in response.

Gall

Gall is the vane for controlling userspace apps.

Iris

Iris is our HTTP client.

Jael

Jael manages keys and Azimuth state.

Khan

Khan is our thread dispatcher.

Lick

Lick is the IPC vane.

Concepts

Explanations of design decisions that are pervasive throughout Arvo.

Tutorials

Walkthroughs that teach you more about how Arvo works.