I started with this good idea https://powerapps.microsoft.com/en-us/tutorials/using-logic-flows/ and after some pounding a bit the connections seemed to be made and the recipe worked. Thanks for that, it's better than nothing. I'm going to keep tweaking and try to combine this with a submit button, becuase I know my end users will say 'Why do I need to click an extra button to start a flow every time I submit a form in the app?'.
Please provide direction on how to automatically start a Flow from inside a PowerApp EditForm in New mode. I'd even be happy with a workaround where the Flow starts automatically when a new record is created inside an Azure SQL database.