I rewrote mp3gain in Rust — 'compatible' turned out to be three different things

If you maintain a podcast, music server, or any audio pipeline that needs consistent volume across files, there's a non-trivial chance you have one of these somewhere: RUN apt-get install -y mp3gain Or in a beets config: replaygain : backend : command command : mp3gain Or buried in a cron job from 2014. mp3gain was written in C by Glen Sawyer in 2003. Upstream development stopped around 2009. Distributors (Debian, Ubuntu, Homebrew) keep it alive with security patches, but no new features have sh