we should add .ipynb to the gitignore - notebooks are out-of-scope for this repo. In the past we have had some notebooks be committed which adds a large volume of code to the log that is later removed

Currently, the listing contains the Courant and Fourier numbers for the momentum equation, and the combined Courant/Fourier criterion. It could be interesting to also have this combined Courant/Fourier criterion for transported scalars. This might be especially relevant for buoyant scalars.

Because we use argparse.ArgumentParser to handle command-line flags we automatically get an error if the user omits the (mandatory) filename argument. Unfortunately this means that simply running psyclone -v to get the version number fails.
I think what needs to be done is check for a solitary -v flag before we call parse_args in the main() routine in the generator.py file.