Performance

A real story of slashing a fintech company's AI bill from $45K to $12K/month. Includes the embarrassing cache bug, the model that was 'too smart' for its own good, and the spreadsheet that changed everything.

Practical lessons from building a production Next.js 15 app — the Server Components that cut our bundle in half, the caching gotcha that cost us a day, and the patterns that actually matter at scale.