Show HN: Beacon – Slack app for structured team announcements with subscriptions

The core idea: teams create "broadcast stations" and post structured updates (breaking changes, maintenance windows, feature releases) to them. Other team members subscribe to the stations they care about and get a clean DM when something relevant goes out. No need to join another channel or configure notification settings per-channel.

External feeds feature: Beyond internal team broadcasts, there's also a pull-based external feeds tab in the app home — for following public sources like status pages or release notes from tools your team uses. Right now it supported only few external feeds and I may add support for more feeds later. Same place, different kind of signal.

What would make you actually use something like this at your company? Happy to answer questions and genuinely would love feedback on it.

Hosted on Railway (hobby plan for now — curious how far it holds).

Thanks!