DB Lab

Database knowledge for interviews is scattered and shallow: definitions without the why, and examples that never run on a real database.

A static learning app with 36 lessons and 314 interview questions. Every lesson follows one arc — story, why it exists, a real example, pitfalls, interview answers and a 10-second recap — and every example was verified on real MongoDB and PostgreSQL.

• Content as Markdown + JSON, validated at build time by a Vite plugin that fails with the file name
• One lazy chunk per lesson per language, so readers download only the lesson they open
• Bilingual UI and content: a type-checked Hindi dictionary and a translation checker that guards code and diagrams
• No backend: progress lives in localStorage, with export and import as a backup

• Keeping 72 translated files faithful: code, diagrams and structure must stay identical to English.
• A fast first load with hundreds of pages of content — solved with build-time validation and per-lesson chunks.

your role on DB Lab

36 lessons, 314 interview questions, two languages, deployable as a static site.