Flashbots, the team of developers behind MEV-Boost, a critical piece of software for the next phase of Ethereum, has decided to accelerate the open-sourcing of some of its code as the broader Ethereum community frets over looming risks of transaction censorship.

The move comes in reaction to the U.S. Treasury Department’s Office of Foreign Assets Control (OFAC) banning Americans from using Tornado Cash, a service that anonymizes transactions, because it abetted money laundering. It also followed the arrest of Alexey Pertsev, who wrote the code for the mixer, banning Americans from using Tornado Cash.