Notes on the things I build and the tools I use.https://hamzakargin.comenhttps://hamzakargin.com/blog/next-to-astrohttps://hamzakargin.com/blog/next-to-astroMy personal site shipped 296 KB of JavaScript to show some text. Now it ships 2.5 KB. Here is why I switched and what changed.Tue, 13 Oct 2026 00:00:00 GMTastronextjsperformancehttps://hamzakargin.com/blog/astro-i18nhttps://hamzakargin.com/blog/astro-i18nHow this site serves English, Russian, Turkish and German with Astro's built-in routing, one typed object and a few small helpers.Mon, 12 Oct 2026 00:00:00 GMTastroi18ntypescripthttps://hamzakargin.com/blog/first-production-apphttps://hamzakargin.com/blog/first-production-appFive months from the first commit to real bookings. The lessons that had nothing to do with which framework I picked.Thu, 08 Oct 2026 00:00:00 GMTcareerproductionlessonshttps://hamzakargin.com/blog/tanstackhttps://hamzakargin.com/blog/tanstackLearn how to properly manage server state in React using TanStack React Query.Wed, 21 Jan 2026 00:00:00 GMThttps://hamzakargin.com/blog/zustandhttps://hamzakargin.com/blog/zustandZustand is an ultra-lightweight state management library for React.Tue, 20 Jan 2026 07:01:11 GMThttps://hamzakargin.com/blog/content-collectionshttps://hamzakargin.com/blog/content-collectionsBuild a scalable, type-safe blog using Next.js, MDX, and Zod-powered content collections.Fri, 12 Dec 2025 00:00:00 GMThttps://hamzakargin.com/blog/aggregation-pipelinehttps://hamzakargin.com/blog/aggregation-pipelineMongoDB aggregation pipelines demystified—native Node.js, no ORM required.Thu, 14 Aug 2025 00:00:00 GMT