How long has it been since you last paid attention to topics related to Rollup? I cannot give a definitive judgment on whether a new wave of development will emerge in the future, but blockchain technology itself has been steadily advancing. The one-click chain deployment technology derived from Rollup's Layer 2 is attempting to address the issue of user attention being scattered across multi-chain ecosystems. Take OP as an example. Its Superchain has upgraded the cross-chain intent mechanism and cross-chain token interface through ERC-7683 and ERC-7802, further optimizing interoperability. In addition to OP, Caldera is also deeply engaged in this field. Caldera is a modular Layer 2 chain deployment technology stack with high flexibility and has already achieved cross-chain interaction within its ecosystem. Its core component, Metalayer, is a cross-chain interoperability framework that includes two key parts: the Intent Engine, which simplifies complex cross-chain operation processes, and the Messaging Protocol, which supports real-time data transmission across networks between multiple Caldera chains. The combination of these two makes Metalayer a seamless, secure, and efficient cross-chain platform. In terms of Rollup's technology stack, Optimistic Rollups can choose between Optimism Bedrock and Arbitrum Nitro, while Zero-Knowledge Rollups have Polygon CDK and ZK Stack as options. Developers on Caldera can freely combine these four technology stacks through modular components. For chain deployment functionality, Caldera supports custom Gas tokens and allows the selection of Celestia or Near as solutions for the Data Availability layer. Additionally, it supports decentralized sequencers, avoiding the single point of failure and MEV (Miner Extractable Value) issues that centralized sequencers might encounter.