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

# L2 Scaling solutions

- [What are Bitcoin rollups?](https://docs.bvm.network/bvm/l2-scaling-solutions/what-are-bitcoin-rollups.md)
- [Optimistic rollups](https://docs.bvm.network/bvm/l2-scaling-solutions/optimistic-rollups.md): Bitcoin, scaled. NOS is a fast, stable, and scalable Bitcoin L2 blockchain.
- [ZK rollups](https://docs.bvm.network/bvm/l2-scaling-solutions/zk-rollups.md)