Flextesa's latest feature, the smart optimistic rollup sandbox, simplifies experimentation with smart optimistic rollups in a local environment. This feature builds on our mission to create a more robust and accessible Tezos development ecosystem.
Introduced in the Mumbai upgrade, the smart optimistic rollup is a layer 2 solution which increases the scalability of Tezos by bundling several operations into one. See Tezos' official [documentation on smart