Yup got some Lora32s for hiking trips. Works great. They work out of the box, but you’ll have to get some lipos and print a case.

https://smartsolutions4home.com/ss4h-sd-smart-doorbell/

There is a really cool looking diy one using a ESP32. You would need a server to go with it though. But using your own small HA server would give you way more control about storage / encryption.

Never heard of it. Looks awesome. I’ll give it a try.

Aw dang. Never thought about my provider not allowing to use my own sfp fiber module :-( But I think you’ve got a point. Specially since its a Japanese provider and I don’t think its worth the hassle. Mhh now I don’t even know if I should go the banana Pi route, since there maybe are some better choices without sfp slot.