Here's the problem statement:
I work from home, and have five kids (*under five). My wife is an absolute rock star, but sometimes there's 💩 and she wouldn't mind a hand. Sometimes I'm just catching up on Slack and popping out to help would be welcomed. Other times I'm on a call with a client and only hospital-worthy interruptions are welcome. ...how do I best communicate to her what "status" I'm in?

What I'm thinking is:
- using my already kinda crazy time-tracking habits where I'm already tracking what "status" I'm in and use that data with a hook...
- pull that information out and put it in a web-interface (or a native app?) she can get to on her phone, and use one of my old iPhones laying around and have it displayed on the outside of my office door

She's smart and can interpret the ability for her to interrupt my status.

Is there already a solution for this that I'm missing?

I've also done something similar to @techenby but in the end I wrote an app/skill for Alexa. Mine was office based for my employees but it's the same principle and also linked to everyone else's status and calendar. Then a quick "Alexa what's Michael's status" or "Alexa is Michael currently available" was all that's needed. Obviously, you do need to have an Alexa or two though!

What also nice about this is that if you wanted to, it would still work in other offices/houses too. As long as the app/skill is installed it worked a treat.

Was a few years ago now and I sold that business...but hopefully it still works! 🙂