Am I missing something? It's obvious to me he's showcasing the "fman build system": https://github.com/mherrmann/fbs which is a wonderful project because the only reason I avoided Python + Qt in the past was because I wanted to make a very very simple cross-platform installer for my friends (mac and windows) and I didn't want to spend a lot of time researching how to bundle the python runtime in a cross-platform binary.

Personally, this is the most useful "Show HN" project I've seen in the past months.