2026-11-04 –, Lightning Stage
We recently released oksolc, a new port of the Solidity compiler in Zig. It provides about 7x faster compilation while maintaining parity with the compiler output, including metadata.
In this talk, we detail how we built it, the different optimizations that we made and will give a hint about the roadmap.
oksolc is a reimplementation of the Solidity compiler in Zig 0.16. Its principal compilation route translates Solidity into Yul, optimizes structured Yul, lowers it to EVM assembly, and produces linked creation and runtime bytecode through the Standard JSON interface. This talk will detail how we built it, and detail several optimizations and the methods we used for this. In particular, we will see how the constraints imposed by compatibility with Solidity 0.8.36 impacted us.
Henri co-founded OKcontract Labs, that does frontier cybersecurity research for onchain systems, and whose work was focused by Vitalik. He is also a security badge holder for TheDAO and a partner at 50 Partners. Before that, he was the Chief Innovation Officer at Wallix (Bloomberg: ALLIX.PA), and received numerous awards in his career including the French Ministry of Research Innovation Prize. Henri holds a PhD in Machine Learning from Paris Sorbonne.