Surely "Nginx" is trademarked, copyrighted, etc. A cool and collected fork would do some basic work to avoid trivial lawsuits, consider the other forks already in the space, and write up a bit on how this fork will be different from the others.
Russia has laws on the books that allow them to exempt domestic operations from international IP enforcement and to nullify any damages if the entity has a connection to an "unfriendly state."
