message: Set ProtectHome in systemd service file
  Further hardening; the service should be run with as many restrictions
  as possible without breaking it.
diff: @@ -58,6 +58,9 @@ PrivateTmp=true
  # Mount /usr, /boot/ and /etc read-only for the process.
  ProtectSystem=full
  +# Deny access to /home, /root and /run/user
  +ProtectHome=true
  +
  # Disallow the process and all of its children to gain
  # new privileges through execve().
  NoNewPrivileges=true
  