As part of the Foundry application development toolkit, Forge is a practical command line tool. Using Forge within the wider development framework,developers can build, test, and ultimately deploy Ethereum-based smart contractsusing Solidity.One of the unique features of the Forge tool is that it supports a variety ofEVM backends. What’s more, Forge allows for faster testing methods by runningparallel EVM execution that result in state diffs, as opposed to directlymodifying the state.