Uptime-Kuma [1] with ntfy [2]. Most of my services expose HTTP so I just have Uptime-Kuma monitor that. But if you have something that is not exposed to the public you can still use a "push" type monitor, and in a cron job on your server(s), send heartbeat to it when everything is working.
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Uptime-Kuma [1] with ntfy [2]. Most of my services expose HTTP so I just have Uptime-Kuma monitor that. But if you have something that is not exposed to the public you can still use a "push" type monitor, and in a cron job on your server(s), send heartbeat to it when everything is working.
[1] https://github.com/louislam/uptime-kuma
[2] https://ntfy.sh/