[Unit]
Description=Music Player Daemon
After=network.target sound.target

[Service]
ExecStart=@prefix@/bin/mpd --no-daemon

# allow MPD to use real-time priority 50
LimitRTPRIO=50
LimitRTTIME=infinity

# disallow writing to /usr, /bin, /sbin, ...
ProtectSystem=yes

# more paranoid security settings
NoNewPrivileges=yes
ProtectKernelTunables=yes
ProtectControlGroups=yes
# AF_NETLINK is required by libsmbclient, or it will exit() .. *sigh*
RestrictAddressFamilies=AF_INET AF_INET6 AF_UNIX AF_NETLINK
RestrictNamespaces=yes

# Note that "ProtectKernelModules=yes" is missing in the user unit
# because systemd 232 is unable to reduce its own capabilities
# ("Failed at step CAPABILITIES spawning /usr/bin/mpd: Operation not
# permitted")

[Install]
WantedBy=default.target