Developer builds free AI prompt library for professionals using Node.js and PostgreSQL

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A developer launched PromptZyo, a free AI prompt library tailored for professionals such as teachers, lawyers, and HR managers, completing the project in 30 days. The platform addresses a common problem where users receive generic AI outputs due to poorly structured prompts, offering profession-specific, ready-to-use alternatives. Built with Node.js, Express, and EJS for server-side rendering, the project prioritized SEO over interactivity, unlike the developer's previous real-time video chat platform. PostgreSQL was chosen over MongoDB due to the relational nature of the data, enabling clean JOIN queries across professions, categories, and prompts. The site is hosted on Railway with Cloudflare handling SSL, CDN caching, and DDoS protection, making it a lightweight and cost-effective setup for a content-heavy library.

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