Publicly Open Mapping Files
POMF is a set of open, unencumbered Minecraft mappings, free for everyone to use under the Creative Commons Zero license.
Compile Enigma from here using Gradle and run it from build/libs.
NOTE: The current version of OML's Enigma has a bug where it won't save mappings for unnamed classes. In that case, rename them to something like "unnamed/axy" if the class name is "axy".