> For the complete documentation index, see [llms.txt](https://hyperfusedocs.sonic.game/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hyperfusedocs.sonic.game/introduction.md).

# Introduction

- [Background](https://hyperfusedocs.sonic.game/introduction/background.md)
- [What is a HyperFuse Guardian Node?](https://hyperfusedocs.sonic.game/introduction/what-is-a-hyperfuse-guardian-node.md)
- [How do HyperFuse Guardian Nodes Work?](https://hyperfusedocs.sonic.game/introduction/how-do-hyperfuse-guardian-nodes-work.md)
- [Who Can Operate a HyperFuse Guardian Node?](https://hyperfusedocs.sonic.game/introduction/who-can-operate-a-hyperfuse-guardian-node.md)
- [What is the HyperFuse Guardian Node NFT?](https://hyperfusedocs.sonic.game/introduction/what-is-the-hyperfuse-guardian-node-nft.md)
- [When Can I Purchase the HyperFuse Guardian Node NFT?](https://hyperfusedocs.sonic.game/introduction/when-can-i-purchase-the-hyperfuse-guardian-node-nft.md)