Place these file like here within;
/etc/containers/systemd/users/
for them to be available for all system users or place them within;
/etc/containers/systemd/users/<UUID>
~/.config/containers/systemd/
for them to be available for that specific user.
The systemd service files can then be automagically be created by the command;
$ systemctl --user daemon-reload
After which they can be started/enabled normally with;
$ systemctl --user start ovos_messagebus
$ systemctl --user start ovos_phal
etc.
j1nx