the install phase writes into /nix : ``` <snip> install -d /nix/store/1kc8xcni0wp4y35vafh03rdxvqkrsxvl-backintime-qt4-1.1.24/../etc/dbus-1/system.d install --mode=644 net.launchpad.backintime.serviceHelper.conf /nix/store/1kc8xcni0wp4y35vafh03rdxvqkrsxvl-backintime-qt4-1.1.24/../etc/dbus-1/system.d <snap> ```
This release removed the Gnome UI to only keep the Qt4 one.