StackOverlords

Every monsoon, landslides close Himalayan highways without warning. Updates spread as unverified WhatsApp forwards, official word from the road maintenance department arrives late and scattered, navigation apps can't say why a road is blocked or when it will reopen, and travellers, the road department and the repair crews each hold only one piece of the picture. Pathfinder connects all three on one live, AI-verified map. A traveller at a landslide snaps a photo and a Hindi voice note (Meta Muse Voice Transcribe); Meta SAM 3.1 blurs faces and number plates and measures how much road is left ("~2.9 m of 7 m open", debris in m³), and two Meta models verify the report against each other (Muse Spark Open writes it, Muse Spark 1.3 checks it independently). The district road office sees it in a Command Centre ranked by impact (vehicle-hours lost), and a crew builder works out the machines and people the measured debris needs, picks the nearest on-duty crew and explains the choice in English and Hindi (Meta Muse Spark Open). One tap sends the job to the crew's "My job" screen, with directions, an "I've arrived" button and progress updates whose photos are checked by Meta SAM 3.1. All three sides read and write the same live event, so each crew update changes its status, % cleared and clearing time, and reaches every traveller on that road within seconds: a new route verdict, a Road Watch alert re-planned by Meta Muse Wonder, and a spoken Drive Watch warning in English or Hindi. For travellers, Pathfinder also answers "Can my vehicle cross?" by comparing the measured gap with the vehicle's width (two models can only make the verdict stricter), and Slope Sentinel reads hillside photos for cracks, seepage and loose rock, adds the rain forecast and slide history, and warns before a slope comes down (Meta Muse Spark Open, Muse Wonder). Route Check suggests when to leave and tests What-If departure times (Meta Muse Wonder), news search finds closures before anyone reports them (Meta Muse Spark 1.3), and share cards for WhatsApp are illustrated with Meta Muse Image. The road office can publish English and Hindi advisories that reach everyone watching a trip through that spot, and one-tap "Still there?" answers from passing drivers let stale reports expire on their own. Pathfinder then hands the safe route to Google Maps for turn-by-turn driving. Models propose and code decides: every status, ranking and verdict is computed in code, every number is a range, and the app keeps working with a no-AI fallback if a model is down. Waze tells you traffic is slow; Pathfinder tells you why, whether you'll fit, and when the crew will have it open. Built solo during the hackathon.