Currently there are many usefull actions to work on flows with a flow. An interesting thing is, that one can get and set the json-definition of a flow. So, a definition could be stored in a repo and automaticaly be deployed to Flow by a flow, if it is changed.
It would be nice if the other way could be automated: A flow is changed and it's definition is pushed into a repo. A nice way to get backups and a trce of change. To do so with minimal manual interaction, an "on changed" trigger for flows would be very helpfull.