Ethereum Rollups (e.g., Arbitrum, Optimism, zkSync) excel at leveraging Ethereum's battle-tested security and decentralization by outsourcing consensus and data availability to the L1. This modular approach reduces your team's core development burden, as you inherit security from the world's largest smart contract platform, which secures over $50B in TVL. However, it introduces complex dependencies on L1 gas costs, cross-chain bridges, and the performance of the chosen data availability layer (e.g., Celestia, EigenDA).