Contributing to humankind by sharing skills and time to make various useful creations that can be enjoyed and used by many.
This includes major work on Ubuntu-based operating systems, via significant backports of recent software to several Ubuntu "series" (ie. versions) dating back 5+ years, with a focus on bringing new versions of highly popular software (eg. VLC, FFmpeg, digiKam) to all Ubuntu series in that several year timeframe. See here for more: