> For the complete documentation index, see [llms.txt](https://arch-ecs.gitbook.io/arch/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://arch-ecs.gitbook.io/arch/extensions/page-3.md).

# Arch.Extended

Arch.Extended, many useful extensions that take even more work off your hands.

Arch itself remains **bare minimum**, but that does not mean that it is not expandable. [`Arch.Extended`](https://github.com/genaray/Arch.Extended) has many useful **utilities** and **additional frameworks** **to** **complement** Arch and make it what you've always wanted it to be!

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Arch.Systems</strong></td><td>Framework to easy organize, reuse and arrange queries.</td><td><a href="/arch/extensions/page-3/arch.system.md">Arch.System</a></td></tr><tr><td><strong>Arch.System.SourceGenerator</strong></td><td>Declarative syntax using attributes and source generator, let your queries write themselves!</td><td><a href="/arch/extensions/page-3/arch.system.sourcegenerator.md">Arch.System.SourceGenerator</a></td></tr><tr><td><strong>Arch.EventBus</strong></td><td>A source generated EventBus, send Events with high-performance!</td><td></td></tr><tr><td><strong>Arch.LowLevel</strong></td><td>Low-level utils and data structures to get rid of GC pressure!</td><td></td></tr><tr><td><strong>Arch.Relationships</strong></td><td>Adds simple relationships between entities to arch!</td><td></td></tr><tr><td><strong>Arch.Persistence</strong></td><td>JSON and Binary (de)serialization to persist your Worlds!</td><td></td></tr><tr><td><strong>Arch.AOT.SourceGenerator</strong></td><td>Helps with AOT compatibility and reduces boilerplate code!</td><td></td></tr></tbody></table>