IKEA Behjälplig is the only solution for installing non-IKEA dishwashers into IKEA METOD kitchen cabinets, but unfortunately, this thing tends to break easily almost every week.

This part can prevent the bottom from breaking at the hinge and lock it in place. Just print two of them and slide them over the hinge.

Don't forget to also print the hinge file from ColdMake - this thing is more durable than the original one:https://www.thingiverse.com/thing:2791193