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ntfy 2.28 lets you run a private push notification server via Docker

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ntfy is an open-source, self-hosted push notification server that lets users send alerts directly to their phone or browser without relying on third-party services like Pushover or Telegram. Version 2.28 can be deployed in minutes using Docker behind a Traefik reverse proxy, secured with HTTPS under a custom domain. Notifications are triggered by a simple HTTP POST request from any script, cron job, or monitoring tool, with no SDK or API library required. The server is configured with credential-based access and a deny-all default policy, ensuring only authorised users can send or receive messages. Because all data remains on the user's own infrastructure, ntfy is positioned as a privacy-focused alternative to commercial push notification platforms.

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