Show HN: eInk device that stops kids and flatmates from barging-in during calls

We've seen a resurgence of eInk device related threads on HN and that got us thinking if we can respond to some of the requests of the people in the comments by providing a devices for that purpose.

We've just launched Joan Home - a WFH device that you can mount on your door to reduce the interruptions you get during your day working from your home office. Schedule your deep work sessions and share your calendar with your family.

Best thing is that this is an eInk device, so easy mounting (no wires) + easy on the eyes as well. No 24/7 LCD screens blasting down the hallway.