Meshtastic is really cool! The heltec v4 is the best board for it you can get on Amazon.

Put it on your roof with a cheap solar panel meant for a security camera, and join it to your home WiFi.

Just use the little plastic case it came in as an enclosure. Cut a hole for the antenna and USB.

A slightly larger antenna will help. There are many on Amazon, and they’re cheap.

(I have tried lots of boards and this has been the best setup for me)