[monocasa]

But my read is that the electron application is out of the docker container. It's distributed as an appimage.

So then what is the docker container doing?

[d3Xt3r]

The docker container hosts QEMU and the docker files to run Windows. The author probably chose this method because the dockur/windows project basically automates and simplifies the whole process of installing and configuring QEMU, and installing and configuring Windows etc.

See: https://github.com/dockur/windows