Spending most of my time at https://tenderly.dev building tools that help developers build and monitor decentralized applications.
The scripting layer Ethereum was missing. A Solidity implementation of the EVM deployed as an Identity contract so you can run any Solidity code just like you could if you had a REPL.
Batch multiple smart contract executions into a single transaction and reduce your gas usage;
See the full execution path for a given transaction, both cross contract and within a single contract.
Firestarter is a community driven crowdsourcing platform
Watchdog for your smart contracts