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

# Welcome

## Overview

With NodeKit, any app or blockchain can unlock composability between chains, allowing users to interact across chains as seamlessly as they can interact on a single chain. This is achieved through Javelin, the first superbuilder which unlocks atomic execution across chains.

NodeKit powers the Composium, the network of chains that leverage NodeKit for composability.

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