They are runtime configs. The build-time defaults are fallbacks for when no runtime config is set. https://www.freedesktop.org/software/systemd/man/systemd.net

They are runtime configs. The build-time defaults are fallbacks for when no runtime config is set. https://www.freedesktop.org/software/systemd/man/systemd.network.html#DNS= https://www.freedesktop.org/software/systemd/man/systemd.net... https://www.freedesktop.org/software/systemd/man/timesyncd.conf.html# https://www.freedesktop.org/software/systemd/man/timesyncd.c...