I looked at the code for the Yaml contrib, as it has not been updated, it is not compatible with Node-Red anymore. It is also not compatible with projects. I did not worked a lot on this to make it work again as I'm not sure it is the way to go.
I think that the idea to have a new file structure would help versionning in git:
But no idea when it will be done.
Another idea would be to divide the flow json in multiple file. (one file per flow, on file per template/function node, one file per subflow). I did not found the good way to do it.
