Show HN: Sightline – Shodan-style search for real-world infra using OSM Data

Summary

Sightline Geospatial infrastructure intelligence platform for discovering and analyzing physical-world assets using OpenStreetMap data. Overview Sightline enables searching, monitoring, and analyzing real-world infrastructure including: Telecommunications towers Power plants and substations Data centers Airports and helipads Ports and harbours Warehouses and industrial facilities Pipelines and refineries Military installations Hospitals, prisons, embassies Architecture flowchart TB subgraph Frontend SearchBar Filters ResultList MapView["MapView (Leaflet.js)"] end subgraph Backend route["route.ts"] parser["parser.ts (NLP)"] geo["geo.ts (Nominatim)"] overpass["overpass.ts (OSM)"] cache["cache.ts"] end subgraph External["External APIs"] Nominatim["Nominatim (Geocoding)"] OverpassAPI["Overpass API (OSM Data)"] end Frontend -->|POST /api/search| route route --> parser route --> geo route --> overpass route --> cache geo --> Nominatim overpass --> OverpassAPI Loading Data Sources OpenStreetMap All infrastructure data comes from OpenStreetMap, a collaborative mapping project. OSM data is crowd-sourced and may contain inaccuracies or gaps. Nominatim Geographic resolution uses the Nominatim geocoding service to convert place names to bounding boxes and coordinates. Overpass API Infrastructure queries execute against the Overpass API, which provides read-only access to OSM data. Query Syntax Natural Language telecom towers in karnataka power plants near mumbai data centers in california airports in germany Structured Queries type:telecom operator:airtel region:karnataka type:data_center operator:google type:substation region:texas type:airport country:france Supported Parameters Parameter Description Example type: Asset type type:power_plant operator: Operator/owner operator:google region: State/region region:bavaria country: Country country:india near: Proximity search near:london radius: Search radius (km) radius:100 Supported Asset Types Infrastructure telecom / tower / an...