Hmmmm. That’s a tricky one, because the symlink needed to be deleted, otherwise the Docker mount fails (as it cannot overwrite the existing file).
I had a bit of a google around for solutions, and found an interesting solution which would dereference the symlink and copy the symlink’s target into the specified directory, but couldn’t find anything that would create a Docker volume mount, thus preserving the dynamic link and bi-directional synchronisation. Happy to be steered towards a solution as this would be a neat feature to have.