---
title: "Why Lovable built a Vite-compatible dev server in Rust"
publication: "React Status"
issue: 491
published_at: "2026-09-18"
canonical_url: "https://react.statuscode.com/issues/491"
---

Plus whether frameworks still matter, React Router 8.4, and shadcn's new linter.        

#​491 — September 18, 2026 

[Read on the Web](https://react.statuscode.com/issues/491)  

Together with [![Master.dev\](https://res.cloudinary.com/cpress/image/upload/c_fill,g_auto,w_1280,h_245/co_white,e_outline:17/cgiteem1q7kgf8yoheqo.png)](https://master.dev/sale/?utm_source=reactstatus&utm_medium=newsletter&utm_campaign=buildersale)  React Status  

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60,q_auto/quq4fg4kyd0bg7hnz44s.jpg)](https://brookslybrand.com/posts/do-frameworks-matter-anymore/)  

[Do Frameworks Matter Anymore?](https://brookslybrand.com/posts/do-frameworks-matter-anymore/) — A Remix team member picks at the _just-let-AI-use-React_ trope. If frameworks don't matter, why use React? Skip one and agents improvise their own makeshift 'frameworks', so Brooks wants new, better ones with solid abstractions and constraints. 

Brooks Lybrand  

💡 If agents _are_ reading your code, structure seems to matter a lot. [One developer's experiment](https://ondrejvelisek.github.io/the-cost-of-abstraction-for-humans-and-ai-agents/) found an over-abstracted React app cost agents up to 5x more to work on.  [![\](https://res.cloudinary.com/cpress/image/upload/c_limit,w_480,h_480,q_auto/copm/765111c3.png)](https://master.dev/sale/?utm_source=reactstatus&utm_medium=newsletter&utm_campaign=buildersale) 

[Stay Sharp in the Age of AI](https://master.dev/sale/?utm_source=reactstatus&utm_medium=newsletter&utm_campaign=buildersale) — Master.dev instructors build at Anthropic, OpenAI, Netflix, Google, and Stripe. Learn from them with hundreds of courses, live workshops, and expanded AI learning paths. [New members get $100 off a yearly membership](https://master.dev/sale/?utm_source=reactstatus&utm_medium=newsletter&utm_campaign=buildersale). 

Master.dev sponsor   

[OJ: A Rust-Native, Vite-Compatible Dev Server](https://lovable.dev/blog/faster-previews-oj) — Lovable spins up a million Vite dev servers a day, so one of its engineers [built OJ](https://rapha.land/introducing-oj/), a Rust dev server that reads your existing `vite.config.ts` and runs Vite plugins, but focused on low memory use and cold start times. It's [open source](https://github.com/lovablelabs/oj) but experimental. 

Raphael Amorim (Lovable)   

**IN BRIEF:** 

- [React Router 8.4](https://reactrouter.com/changelog#v840) reduces re-renders: components that only call `useLocation` (say) no longer re-render when a navigation starts. There's also an opt-in, _unstable_ route matcher that cuts navigation times by up to 88% on large apps.
- [Motion](https://motion.dev/) 13.4 has landed adding [AnimateView](https://motion.dev/docs/react-animate-view) to animate elements between different views using the browser's native View Transition API and React 19.3's [`ViewTransition` component](https://react.dev/blog/2026/09/09/react-19-3#view-transition).
- 📱 [Expo SDK 58 is in beta](https://expo.dev/changelog/sdk-58-beta), built for iOS 27 on React Native 0.88 RC, with _App Intents_ support and a new CLI tool aimed at coding agents.   

[React Activity: When a Render No Longer Guarantees an Effect](https://hackernoon.com/react-activity-when-a-render-no-longer-guarantees-an-effect) — React 19.2's [`<Activity>`](https://react.dev/reference/react/Activity) can render a hidden tree without mounting its Effects, which caused a leak in a legacy hook that subscribed during render. A practical rundown of what to audit before adopting it. 

Sergey Levkovich   

📄 [Real-Time and Offline are the Same Problem](https://marmelab.com/blog/2026/09/09/real-time-and-offline-are-the-same-problem.html) – Lessons from wiring TanStack DB into [React Admin](https://marmelab.com/react-admin/). Matthieu Hochlander (Marmelab) 

📄 [From 1,256ms to 96ms: Fixing INP in a Massive React Dropdown](https://dev.to/subito/from-1256ms-to-96ms-fixing-inp-in-a-massive-react-dropdown-16l7) Giovanni Tramutola (Subito) 

📄 [Migrating 1,100 Files to Redux Toolkit v2 Without a Code Freeze](https://www.elastic.co/search-labs/blog/redux-toolkit-v2-migration-kibana-monorepo) Walter Rafelsberger (Elastic) 

📄 [A Deep Dive into StyleX](https://flaviocopes.com/stylex/) Flavio Copes  

🛠 Code, Tools & Libraries 

[![\](https://res.cloudinary.com/cpress/image/upload/w_1280,e_sharpen:60,q_auto/afaokicwppgsd63qh1c5.jpg)](https://github.com/shadcn-ui/lint)  

[`@shadcn/lint`: An Agent-First Linter for Tailwind Design Systems](https://github.com/shadcn-ui/lint) — A new ESLint/Oxlint plugin that lets you declare which Tailwind classes each component accepts, with errors that tell agents which tokens or variants to use instead. 

shadcn Team   

[React Konva: Canvas Components for Complex 2D Graphics](https://konvajs.org/docs/react/index.html) — Components for the [Konva](https://konvajs.org/) 2D canvas scene graph library you might use to build whiteboards, diagram/design editors, etc. Now requires React 19.3. [Repo](https://github.com/konvajs/react-konva). 

Konva   

[React Simple Maps 5.0: Composable SVG Maps for React Apps](https://www.react-simple-maps.io/) — Powered by [d3-geo](https://github.com/d3/d3-geo) and [topojson](https://github.com/topojson/topojson) and provides a declarative API for defining maps to render. [The docs](https://www.react-simple-maps.io/docs/getting-started) are particularly good. 

Z Creative Labs   

[Astryx 0.6: Meta's React Design System Gets Responsive Themes](https://astryx.atmeta.com/blog/astryx-v0-6-0) — Meta's React design system now lets themes adapt to viewport, pointer type, and contrast preferences in CSS. If you missed the excitement when Astryx launched back in June, [learn more here](https://astryx.atmeta.com/). 

Meta   

- 🗓️ [ilamy Calendar 3.0](https://ilamy.dev/) – 'Full calendar' component. [v3.0](https://github.com/kcsujeet/ilamy-calendar/releases/tag/v3.0.0) aligns an event's end point with RFC 5545 and the Google Calendar API. ([Demo](https://ilamy.dev/demo/))
- 📊 [billboard.js 4.1](https://netil.medium.com/billboard-js-4-1-0-live-resizing-configurable-subchart-react-subpath-csp-safe-worker-e1a6fd0ece88) – The popular charting library has brought its React component into the main package.
- [React Native Skia 2.12](https://github.com/Shopify/react-native-skia) – High-performance Skia-powered 2D graphics library.
- [SSGOI 7.1](https://ssgoi.dev/) – Native app-like page transitions built on the Web Animations API.
- [react-native-nitro-sqlite 9.8](https://github.com/margelo/react-native-nitro-sqlite) – JSI-backed SQLite library for React Native.      

📰 Classifieds   

[Build with strategy. Lead with curiosity](https://jobs.fidelity.com/en/life-at-fidelity/our-stories/tech-careers/fidelity-tech-strategy-empowers-associates/?utm_source=javascript&utm_medium=paidsocial&utm_campaign=jobssocial&utm_content=awn-tech-sl2-txt) - Fidelity is looking for technologists that ask questions, challenge conventions and care about the impact of their products. 

--- 

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📢 Elsewhere in the ecosystem  

- ⚠️ Attackers are [scanning for exposed Vite dev servers](https://www.f5.com/labs/articles/cloud-takeover-mass-scanning-for-exposed-vite-endpoints-cve-2026-39364) to exploit a bug (patched in Vite 7.3.2 and 8.0.5) to access `.env` files. Check your setup if you haven't updated in a while.
- TC39's Hemanth HM has a popular [functional programming 'jargon' reference](https://github.com/hemanth/functional-programming-jargon), but has now also created [a visual map of FP concepts](https://hemanth.github.io/functional-programming-jargon/) including JavaScript examples of each.
- Philip Walton shows how [TypeScript can complain when you use newer Web APIs](https://philipwalton.com/articles/modern-web-types/) due to its DOM types only covering APIs shipped in _multiple_ engines. His new [modern-web-types](https://github.com/philipwalton/modern-web-types) `lib.dom` replacement fills in those gaps.
- GitHub Actions now has [a `cache-mode` setting](https://socket.dev/blog/github-actions-cache-mode) to limit cache access per workflow/job, a defence against the kind of cache poisoning that [compromised TanStack's npm packages a few months ago](https://tanstack.com/blog/npm-supply-chain-compromise-postmortem).
- Vercel has [unveiled a 'flat rate' CDN pricing option](https://vercel.com/blog/introducing-flat-rate-cdn) (for _Pro_ teams) which might take the sting out of some of your bills…         

Curated by Peter Cooper and Terence C. Gannon. 

A **[Cooperpress](https://cooperpress.com/)** publication. 

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