> For the complete documentation index, see [llms.txt](https://docs.sunriselayer.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.sunriselayer.io/build/l2-blockchains/rollkit.md).

# Rollkit

Sunrise's Data Availability Layer supports Layer 2 blockchains created using [Rollkit](https://github.com/rollkit/rollkit)

This is a guide to connecting an L2 chain created using Rollkit to Sunrise chain with [Sunrise Data](https://github.com/sunriselayer/sunrise-data). Data Availability layer is supported in Sunrise v0.3.1-rc1 and later.

## Sunrise Data

**Before optimism start, set up sunrise-data.**[Sunrise Data Document](/build/l2-blockchains/rollkit/sunrise-data.md)

It is recommended to run the full consensus node locally, without relying on an external RPC.[Sunrise Consensus Node Document](/run-a-sunrise-node/types/consensus.md)

## Rollkit

Start your Rollkit L2 chain.

[Rollkit L2 Chain Document](/build/l2-blockchains/rollkit/rollkit.md)