Developer creates offline PWA for identifying stars and constellations via smartphone

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A developer has built an offline Progressive Web App called StarWatch for stargazing. The app uses a phone's camera, compass, gyroscope, and GPS to identify stars and constellations a user points at, with a fallback sky map. It operates entirely on-device, requiring no internet connection and does not send location data to any server. The developer intentionally excluded a generic vision AI model from this release, finding it unreliable for accurate identification.

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