# Oarbank documentation

> Oarbank runs batch jobs on a fleet of macOS, Linux and Windows computers you own; these docs cover how it works, what it needs and how to build modules with the open-source SDK.

HTML version: https://docs.codonic.dev/oarbank/

Oarbank spreads batch jobs across the computers you already own: Macs, Linux machines and Windows PCs, mixed in one fleet. A coordinator plans the work and an agent on every node runs it, while host protection keeps each computer usable for the people who use it. What the jobs compute is defined by **modules**, built with the open-source module SDK (Apache-2.0), which talk to Oarbank’s source-available core only through the versioned public contracts documented here.

Oarbank is not released yet: downloads arrive with the first public release. You can read how it works and build toward it today.

## Choose your path

[Run a fleet](/oarbank/get-started)What setting up a coordinator and nodes will look like, and what each computer needs.

[Build a module](/oarbank/build/tutorial)Write, test and bundle a module with the SDK, start to finish.

## Platforms

Nodes run on these platforms. The coordinator runs on macOS or Linux.

|         | Versions                     | Architectures |
| ------- | ---------------------------- | ------------- |
| macOS   | 15 or later                  | Apple silicon |
| Linux   | systemd, Linux 6.2 or later  | x86_64, arm64 |
| Windows | 10 version 1809 or later, 11 | x64, ARM64    |

A module declares the platforms its runner supports as tokens: `darwin-arm64`, `linux-amd64`, `linux-arm64`, `windows-amd64` and `windows-arm64`. What each computer needs is in [Requirements](/oarbank/operate/requirements); the token rules, portable paths and per-platform declarations are in [Platforms](/oarbank/spec/platforms).

## Learn more

- [How Oarbank works](/oarbank/concepts/how-oarbank-works): coordinator, nodes, modules, certification, sandboxing, host protection and signing.
- [Specification](/oarbank/spec): the normative public contracts between modules and the core.
- [Manifest fields](/oarbank/reference/manifest) and [JSON Schemas](/oarbank/reference/schemas): generated from the SDK’s typed models.