Disclosure: I'm a senior backend tech lead and I run HostingGuru, where Telegram alerts ship as a built-in feature. This tutorial works on any platform — it's the manual version of what HostingGuru does for you. Useful even if you never become a customer. There's a hierarchy of where production alerts go, ranked by how likely you are to actually see them. Email → 14% open rate within an hour, less at 3am. Slack → muted in 6 of 10 teams I've seen, especially "alerts" channels. Phone-call paging (PagerDuty, Opsgenie) → works, but $20+/user/month and overkill for solo founders. Telegram → notification on lock screen, no setup cost, works on every phone, you'll see it. For a solo founder or a small team, Telegram alerts hit a sweet spot: the notification is annoying enough that you'll see it , easy enough that you'll set it up , and free . After 8 years of trying every paging tool, this is what I default to for early-stage projects.…