This is exactly what I did. It sends a text when it’s done. I forget some times even with the text, so I added repetitive alerts. That got annoying, so I added

This is exactly what I did. It sends a text when it’s done. I forget some times even with the text, so I added repetitive alerts. That got annoying, so I added a door sensor to the washing machine to silence repetitive alerts if you open the door after a cycle is done. Total cost was negligible. A cheap $20 smart plug that I never use except for monitoring and $10 for the door sensor.