# Build

- [Validators](/build/validators.md)
- [How to Become a Validator](/build/validators/validator.md)
- [Proof of Data Availability](/build/validators/data-availability-proof.md)
- [Self Delegation](/build/validators/self-delegation.md)
- [L2 Blockchains](/build/l2-blockchains.md)
- [Rollkit](/build/l2-blockchains/rollkit.md)
- [Sunrise Data](/build/l2-blockchains/rollkit/sunrise-data.md)
- [Rollkit L2 Chain](/build/l2-blockchains/rollkit/rollkit.md)
- [OP Stack](/build/l2-blockchains/optimism.md)
- [Sunrise Data](/build/l2-blockchains/optimism/sunrise-data.md)
- [OP Stack L2 Chain](/build/l2-blockchains/optimism/op-stack.md)
- [Client](/build/client.md)