This project seems dead. Luckily there are active forks

[MarcinOrlowski]

As this project seems abandoned, I found out that some of the forks of this project are actively maintained, so you may want to check these instead, i.e. top most active: https://github.com/cdrx/docker-pyinstaller with images for Windows, Linux and macOS.

[bobemoe]

Just what I was looking for :) Though I think you meant to link to https://github.com/batonogov/docker-pyinstaller as the top fork