Hello This comes from: https://bugs.gentoo.org/show_bug.cgi?id=481920
as we would like to set some saner (for systemd usage) defaults in a subprofile, that way people could switch to it to inherit the changes more easily). For now, it masks consolekit USE flag, enables "systemd" one and masks static-libs for virtual/udev and packages relying in that support to prevent people from getting cryptic blockers when trying to enable that USEs. You have an example for gnome and amd64 in: https://bugs.gentoo.org/show_bug.cgi?id=481920#c12 - It adds a profile/default/linux/amd64/13.0/desktop/gnome/systemd/ that simply inherits ".." (to get desktop/gnome profile settings) and systemd target path to get additional settings - It adds profile/targets/systemd for putting our settings Thanks
