Ideally, you'd want a zlib-compatible zopfil library that you could just substit...

JoshTriplett on March 1, 2013 | parent | context | favorite | on: Compress data more densely with Zopfli

Ideally, you'd want a zlib-compatible zopfil library that you could just substitute for libz.so.1 when running an appropriate format-specific compressor that uses zlib.