1) I start a copy from the command line.
2) I decide I want to copy another file to the same place.
For example to the same USB stick.
3) In the old days, I would have to start a parallel copy
or wait for the first copy to finish before copying
the second file.
4) Now, with libferris, I can just append it to the existing copy task for this destination.
Unfortunately the video quality is not so good in the final web version. Still some fun and games to be had getting things up to scratch.