What are they building on Celo?
Ganache CLI developer tool for Celo blockchain
The goal of this grant was to make already familiar local blockchain development experience accessible to Celo smart contract developers. Celo has different transaction structure that is not fully compatible with Ethereum and enables users and developers to pay for gas fees using any ERC20 token.
You are now able to develop, deploy and test Celo smart contracts to your local devnet and interact with them in the same way you would do on the live Celo testnet or mainnet network.