MemoryDenyWriteExecute=yes
RestrictRealtime=yes
RestrictAddressFamilies=AF_UNIX AF_NETLINK AF_INET AF_INET6 AF_PACKET
-SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io
+SystemCallFilter=~@clock @cpu-emulation @debug @keyring @module @mount @obsolete @raw-io @reboot @swap
SystemCallArchitectures=native
ReadWritePaths=/run/systemd