I am sorry, my goal is not to start a new flame about systemd. I am very happy Arch was one of the first distro to make it default. This is a wonderful tool. I just want to share my experience. Some parts of this tool have a zero level documentation and are much more too complicated, especially whith no clear manuals. But I guess we can not do anything, right ? It is a little bit like politics: we, citizens, we can't do so much to make things change. I will keep trying how to configure a static bridge on my nspawn container with networkd...or go Virtualbox.
