ChainCatcher news, Layer2 technology research and data website L2BEAT announced the launch of the Build Your Own Rollup (BYOR) tool.It is reported that BYOR is a simplified version of a sovereign Rollup, making the code easy to read and understand. BYOR is currently deployed on the Holesky testnet, and its functionalities include fee sorting, sending and retrieving state to and from L1, deleting invalid transactions, viewing account balances, sending transactions, and checking transaction statuses.Compared to Optimistic and ZK rollups, sovereign Rollup does not validate the state root on Ethereum, relying solely on it for data availability and consensus. This prevents trust-minimized bridging between L1 and BYOR, while significantly simplifying the code. The BYOR codebase consists of three programs: smart contracts, nodes, and wallets, which, when deployed together, allow end users to interact with the network.