This grant will help us to improve the development performance and rent servers for our devnet.

Here is roadmap:

* Milestone 1: the node engine for sharded storage, available to provide zk proofs of data availability and storage
* Milestone 2: a rollup with a minimal zk smart contract for data management
* Milestone 3: upgrade the rollup to join proofs of state transition with proofs of data availability and storage in one single ZK proof