what is @Caldera Official ?
Caldera is a Rollup-as-a-Service (RaaS) platform built on Ethereum. It enables developers to launch custom Layer‑2 rollups tailored for their app’s needs—choosing among frameworks like Arbitrum Nitro, Optimism Bedrock, zkSync, or Polygon CDK .
These rollups are instantly connected via Caldera’s Metalayer, which supports fast, secure cross-rollup communication, shared liquidity, intent-based bridging, message passing, and instant finality.