React
React is Meta's component-driven UI library — the runtime under nearly every modern web frontend TantraDev ships. We use React with TypeScript by default, with Server Components where the platform supports them and React Native where the same product needs to ship to iOS and Android with one team. The library is a tool; the design system around it is the deliverable.
Concepts that travel with this one.
Architecture rarely lives in isolation — these are the terms that come up in the same conversation.
Next.js
Next.js is Vercel's React framework with file-based routing, server components, route-level data fetching, and edge-runnable middleware. TantraDev ships Next.js for marketing surfaces, dashboards, and customer-facing storefronts where SEO, server-rendering, and developer ergonomics need to coexist. This site itself is a Next.js App Router build.
TypeScript
TypeScript is JavaScript with a structural type system — Microsoft's open-source compiler that catches whole classes of refactor regressions at build time instead of in production. TantraDev writes TypeScript in strict mode on every new codebase. The discipline is not the types themselves; it is that the contract between two services or two layers becomes the documentation.
React Native
React Native compiles a single TypeScript/React codebase down to native iOS and Android. TantraDev uses it where a founding team has one product roadmap and two app-store targets — particularly EdTech and consumer apps headed to tier-2 and tier-3 Indian markets where Android dominates and bandwidth is the constraint. Native modules cover the 10% the bridge can't reach.
Building a system where React is the load-bearing decision?
30 minutes on the phone, one page in your inbox — what to build, what to skip, what it will cost. You keep the audit even if we are not the right fit.