You could install the rpm that is already compiled on the Github repository, which you may already have.

Then kill the daemon: run "ps aux | grep daemon.py", then "kill -9 <daemon.py PID>".

And then replace your /usr/share/harbour-containers/service/daemon.py with the one in the fork above. Make sure you download the raw daemon.py and not the HTML view. And reboot.

One thing to keep in mind is you may have leftover configs in /var/lib/lxc. So if that doesn't work, it might be worth checking those and/or creating a new container, to make sure the configs are not still trying to use nemo.