Running as unprivileged (non-root) user

[ondrej-zary]

Both lightNVR itself and go2rtc could easily run as non-privileged user:

# adduser lightnvr
# chown -R lightnvr:lightnvr /etc/lightnvr /var/lib/lightnvr/data /var/log/lightnvr.log /var/log/go2rtc.log
# chmod go-rwx /etc/lightnvr /var/lib/lightnvr/data
# rmdir /run/lightnvr

modify lightnvr.service as per attached patch
lightnvr.service.patch

change pid_file in /etc/lightnvr/lightnvr.ini to /var/run/lightnvr/lightnvr.pid