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This project is a slim copy of the Earthian rankings app. The learn section currently lists exactly one article so you can grow content without carrying hundreds of routes while you prototype.
To add another guide: extend src/app/[locale]/learn/articles.ts, then add a matching folder under src/app/[locale]/learn/<slug>/ with page.tsx and optional layout.tsx for metadata—same pattern as the parent repo.
Optional JSON-driven articles can still live in content/learn/*.json and render through the dynamic learn/[slug] route.