You should be able to add your own camera to the scene so you can film the Controller from whatever perspective you see fit...
The basic setup of a VR-less system is to use a LeapServiceProvider component (not a LeapXRServiceProvider) and a linked Hand Model Manager (with hands underneath it in the hierarchy and registered to it, much like how you see implemented in the prefabs).
You should also remember to disable VR-mode from your player settings (if you’re using a cloned version of UnityModules).
You should then see hands in front of it upon pressing play and holding your hands in front of your Leap peripheral.