[Unit]
Description=D-Bus System Message Bus
Documentation=man:dbus-daemon(1)
Requires=dbus.socket
# we don't properly stop D-Bus (see ExecStop=), thus disallow restart
RefuseManualStart=yes

[Service]
ExecStart=/usr/bin/dbus-daemon --system --address=systemd: --nofork --nopidfile --systemd-activation --syslog-only
ExecReload=/usr/bin/dbus-send --print-reply --system --type=method_call --dest=org.freedesktop.DBus / org.freedesktop.DBus.ReloadConfig
ExecStop=/bin/true
KillMode=none
OOMScoreAdjust=-900