Fleet Pulse — an open-source device-monitoring dashboard for satellite and cellular links, built on entirely synthetic data. 300 simulated devices report every 5 seconds into TimescaleDB (hypertable, continuous aggregate, 30-day retention) with device and customer records in MongoDB. NestJS API with JWT and three roles, React + MUI dashboard with a live map, outage lists and CSV reports. Docker Compose and Caddy HTTPS. Live: fleetpulse.solarkb.com (https://fleetpulse.solarkb.com) · Code: github.com/chiragmandyal1/fleet-pulse
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Solar-kb — Ask the solar system: a RAG chatbot that answers only from ~270 NASA pages, cites its sources and refuses off-topic questions (30/30 on its own test set). A 3D solar system flies to the planet or moon in each answer. NestJS API, Postgres + pgvector, Groq with a Claude fallback, Google sign-in with daily limits, Docker and Caddy HTTPS.
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Sweep for YouTube — Chrome extension that bulk-deletes YouTube playlists, removes videos from a playlist and bulk-unsubscribes from channels. Drives YouTube's own UI to avoid the Data API's 200-deletes-a-day quota, with smart-select filters, auto-stop on failures and no data leaving the browser.
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React-Firebase — A secure React.js and Firebase project for storing and displaying user data with authentication and cloud storage.
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