Next-Intl Precompilation, RSC vs SSR, Syntux, Tamagui 2, Vercel Sandbox, CSS in 2026

► Improving Performance using React Server Components

In this talk, Vercel engineer Gal Schlesinger explains how React Server Components work under the hood and why they’re powerful. He shows how streaming HTML and Suspense let apps render important content first and delay the rest, without extra client-side requests

Ahead-of-time compilation for next-intl

next-intl now supports precompiling translations at build time. By enabling a single flag in next.config.ts, you can cut about 9KB of compressed JavaScript from your bundle and make message formatting faster at runtime

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Arcjet - Painless security for developers

Implement bot protection and signup spam protection natively in code.

📙 Articles, Tutorials

► RSC vs SSR Performance

Nadia Makarevich compares client-side rendering, classic SSR, SSR with server data fetching, and finally Server Components with streaming

New useOptimistic docs

If you haven’t looked yet, the updated useOptimistic docs are worth a visit. They explain the hook with simple examples, cover many real-world use cases, and include interactive sandboxes so you can try things yourself

My approach to building full-stack web apps with Next.js

Not a best‑practices guide, but a breakdown of the architecture the author uses across his projects. It covers assets, layouts, Server Actions, caching, and job processing, with an emphasis on avoiding surprises in production.

You probably don’t need useCallback here

Argues that useMemo and useCallback usually don’t help much unless you’re avoiding expensive work or keeping stable references for memoised children or effects

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📦 Projects / Packages / Tools

Tamagui 2

Tamagui v2 is here with a big focus on stability, speed, and better docs. It brings typed, high‑performance styling that works the same on React Native and the web, plus many updated components, a new default config, better themes, and major compiler and animation improvements

agent-browser

A fast browser automation tool made for AI agents. It uses compact text output instead of heavy JSON, which saves tokens and makes it easier for LLMs to understand. It gives each page element a stable ref, so agents can click and interact in a clear and repeatable way

syntux

syntux lets you build generative UIs from your data. You pass in a value and a short hint, and syntux designs and renders a UI for you. It supports streaming UI generation, caching, and custom React components.

facehash

A small React component that creates friendly, unique avatar faces from any text like a username or email. It has zero dependencies, works offline, and is fully deterministic (same input, same face)

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The Tigris Storage SDK: Giving you code you can read at a glance

Stop wrestling with AWS S3 boilerplate in your Next.js apps. The new Tigris Storage SDK gives you simple get, put, and remove calls with first-class TypeScript support — storage that feels like JavaScript.

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🌈 Related

JavaScript Frameworks - Heading into 2026

Ryan Carniato shares his annual overview of the JavaScript framework landscape. Instead of flashy new tools, this year focuses on deeper shifts: AI-first frameworks, apps that run the same code on server and client, and async as a core concept

𝕏 Performance Is Not a Technical Problem

After years of performance work at Vercel, Shu argues that performance issues aren’t caused by bad code or bad engineers, but by entropy. As apps grow, context is lost, abstractions hide real costs, and performance slowly degrades. He believes long-term performance requires systems that account for lost context and growing complexity.

CSS in 2026: The new features reshaping frontend development

Modern CSS is becoming powerful enough to replace a lot of JavaScript for UI work. This article explores new features like customizable native <select> elements, better animations, and data-driven styling

Run untrusted code with Vercel Sandbox, now generally available

Vercel’s Sandbox lets AI agents run untrusted code in fast, isolated Linux microVMs. It’s built for short‑lived tasks, starts in under a second, and shuts down when done. The Sandbox CLI and SDK are now open source, with pay‑only‑for‑CPU pricing