M: I use it to make up for the deficiencies in the energy dashboard:
Energy dash doesn’t handle nested power at all gracefully. To avoid creating bajillions of templates I use a card like this. To do Sankley properly you have to handle nesting…
Also that implementation of Sankey is WAY cool - you’d have a long hill to climb pulling it into core in a way I’d use it - would require AT LEAST feature parity.