What smart contract architecture does Kaspa enable for Layer 2s?

Kaspa's design enables a new smart contract architecture that combines the simplicity of zk-rollups with the responsiveness and security of on-chain execution. zk-rollups are a Layer 2 approach where computations happen off the main chain and only a compact proof is submitted on-chain — making them simpler to reason about but typically slower to respond. Most platforms force developers to choose one property or the other. Kaspa's structure allows L2s to offer zk-rollup-style simplicity and live on-chain responsiveness simultaneously, without the usual trade-off. For anyone building or using applications on Kaspa's Layer 2, this means the underlying architecture does not force a compromise between ease of development and real-time security.