The topic of home automation, (in that case through Theater) was discussed in another thread. I took the liberty to add to a separate thread:

Would like to understand more how home integration is a part of Theatre. Sound great. Could you share some more details on how that is achieved?

Sure! Bang & Olufsen has released its bangolufsen-hacs integration for Home Assistant, which is a brand new (and official!) integration that works with Mozart platform products, like the Theatre and Beolab 28s.

1. You need Home Assistant and HACS running to use it
2. Add the bangolufsen-hacs repo as a custom repo to HACS
3. Give your Theatre a static IP
4. Go to integrations and search for Bang & Olufsen to configure it
5. Now it’s set up and you can control the Theatre from Home Assistant

Then you can get started setting up the BeoRemote One to trigger things when you use the Light and Control menus.

1. In Home Assistant, go to Developer Tools, Events and start listening to the bangolufsen_event
2. Hit any of the numeric, color or arrow buttons on the BeoRemote to and you should see it pop up as an event with the key pressed as the payload (you can also enter the Lights and Device menus on the remote to get a list of named commands, like ‘Cinema’, to send, which will send a function name as payload instead)
3. Go to Automations and set up an automation with this event and payload as trigger for something, like turning on/off lights

All in all, very simple if you already have a Home Assistant instance up and running. If not then that is going to be the most challenging part of this process rather than the Theatre specific stuff, as Home Assistant can be a bit fiddly to get started with. I’ve thought of making a short YouTube video of this in action, as there is very little content on this or the Theatre in general.