- Hyper optimized low-level Solidity code, wrapped up in flexible high-level APIs. - Implements unique features (e.g. JSONParserLib, LibSort) that make Solidity feel like a proper-high level language. - Solady LibZip: Generalized calldata compression and Lz77 compression. With an accompanying JS / TS library. - Cross-pollination: novel math, optimization, EVM tricks developed in Solady are ported to other projects across the OP ecosystem. - Used by sound.xyz, OpenSea, 0xSplits, Optimism, Friendtech, etc. - Learning resource for Solidity inline-assembly. Overall, Solady empowers Solidity developers to develop harder, better, faster, stronger on OP ecosystem chains.