For fhEVM-native, to start the setup, you can use our demo repository. Note that, at the time of writing, the demo repository doesn't yet use the fhEVM-native model that is implemented here - instead, it uses the fhEVM-native implementation that uses precompiles (instead of symbolic execution) and FHE computation is done inside geth (as opposed to an external Executor we have here).
For fhEVM-coprocessor, please look at the coprocessor section of the getting started guide.