I built a free worldwide holiday and disruption tracker

Hacker News

Hi HN, I’m the creator of Alarms.Global, a free tool I built while working in logistics. I was constantly juggling scattered holiday calendars and scanning local news to figure out why shipments were delayed. What it does: Tracks public holidays in 190+ countries (so you know when offices, ports, and customs are closed) Aggregates real-time transport disruptions (strikes, port congestion, weather issues, etc.) Shows everything on a filterable world map Works in 14 languages The idea was to create a single open platform to see what might stop goods from moving today. Tech: It’s built with F#/.NET on the backend, Qdrant for vector search, GDELT + custom feeds for disruptions, and Leaflet.js/MapTiler for the map UI. I kept it lightweight to be fast and browser-friendly. It’s still early some features are in progress but the core is live. I’d love feedback: What disruption sources would you want added? Anything confusing in the interface? Try it here: https://alarms.global

Visit product View on Hacker NewsAug 30, 2025

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nativeThis product was originally launched on this platform.

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