What are my options for getting alerts on my android phone if services on my VPS becoming unresponsive?
My first thought is a simple app that periodically pings domains and gives a notification if any fail. Is there an open source app for that?
Or something else?


I use uptime Kuma with signal-cli for notifications - it’s been rock solid. I also have another uptime kuma instance that uses email as notification option to monitor my primary uptime kuma and the signal-cli.