I am trying to find a reliable way to receive a message in case of emergency and I am outside my house. My HA is accessible via wireguard, but I am not 100% with my phone on wireguard. Phone notifications in general I receive only when I connect to wireguard, so I am trying to think of a better way.
I saw some people using Telegram bot as a solution which is something similar to what I want, but I don't want to rely on Telegram, Slack, Discord, etc. Does someone has a different approach?