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Build a fast, installable React Progressive Web App with Vite and Workbox: manifest, caching, offline, updates, and Lighthouse audits.
Build a production-ready LangGraph multi-agent workflow with a supervisor, tools, checkpointing, and streaming—step-by-step with tested Python code.
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Build a Flutter app with a Shelf backend: local JSON storage on the server, Hive caching on the client, and offline-first sync.
A practical GPT‑4 API guide to Structured Outputs: enforce JSON Schemas via Responses and Chat Completions, with code, streaming, and production tips.
