Show IH: How I Used Programmatic SEO in a Niche to Build a Global Side Project

Hey Indie Hackers,

I want to share my solo project, Arcana Calculator, a collection of esoteric tools (tarot, numerology, etc.).

My growth strategy was built on two pillars: internationalization and programmatic SEO. I used Next.js and next-intl to launch in 10 languages, creating separate, indexable routes for each. This immediately opened up a global audience.

For SEO, I focused on creating highly optimized, dynamic pages for each calculator. Using generateMetadata and structured data ( StructuredData.tsx ), each page is designed to rank for long-tail keywords across different languages.

The tech stack is Next.js and TypeScript. Monetization is currently through AdSense, but I'm exploring premium reports as a future revenue stream.

It's been a fun journey from a niche idea to a profitable, global site. For those who've monetized similar tools, what revenue models have you found effective beyond ads? Any feedback is welcome!