Thanks for the hint I did not know about Nabu Casa.
Although I am not clear about the benefit of the service. I thought I could achieve the same kind of access with simply forwarding ports 80 and 443 from my router to my home assistant. Is there anything wrong with my intended setup?
Using a VPN does work for restricting outside access, however I found that for me this was not convenient enough for two reasons:
- I would need to setup a VPN server at my home network
- I would need to connect to my VPN everytime before trying to access my smart home devices
Since I am on the same journey as OP and tried it just recently, I have one thing to add about openHAB:
It does not come with actual login credential handling. If you want to make your smart home accessible from outside your home network I cannot recommend openHAB.
I am currently going with Home Aisstant mainly for that reason.
Twitter ist public? I thought it's Elon's private property now, no public trading any more.