boop

Boop is a self-hosted notification inbox: when something happens in one of your apps (a deploy finishes, a backup fails, a job errors) Boop pushes it straight to your phone. It is one Go binary, one SQLite file, one Docker container, and pushes go directly to Apple's APNs with no hosted relay, no accounts, no telemetry. MIT and free.

You POST an event with a project API key and it shows up on your phone. The design is honest about privacy: the push carries only a title, a body, and an event id, and the phone fetches the full detail from your own server. The real catch is setup. There is no App Store app, so you build and sign the iOS client yourself, and you need an Apple developer account and a .p8 APNs key to get pushes at all. Without those, events still land in the web UI but your phone stays quiet.

For a solo developer who wants ntfy or Pushover without a third party in the middle, and who already ships iOS, this is a clean, private option. If you do not have an Apple developer account or do not want to compile the app, the barrier is real. It is iOS-only today; a desktop client is planned, Android is not.