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Found 22 blog posts
How We Debug Hydration Mismatches in the Next.js App Router
A hydration mismatch is when the Next.js server HTML does not match React's first client render, so React 19 re-renders the subtree in the browser. We walk through the four causes our team hits most and the fixes that hold in production.
Fixing INP: How We Tune Interaction to Next Paint in React
Interaction to Next Paint (INP) replaced First Input Delay as a Core Web Vital in March 2024. We break each interaction into three phases — input delay, processing, and presentation — and share the React fixes that hold up on production dashboards.
Server Actions Are Public Endpoints: How We Harden Next.js Mutations
Every Next.js Server Action compiles to a public HTTP endpoint, and the UI around it is not access control. We share how our team validates input at runtime, places authorization inside actions, and uses Next.js config to harden mutations.
React Compiler in 2026: What It Actually Memoizes (And What It Doesn't)
React Compiler shipped stable with React 19 and automatically memoizes components, hooks, and callbacks by analyzing data flow at build time. After enabling it across client projects at Devya, here is what it handles, when it opts out, and whether you should remove useMemo calls.
Partial Prerendering in Next.js: Static Shell + Dynamic Stream
Partial Prerendering serves a static HTML shell from the CDN edge instantly, then streams Suspense-wrapped dynamic sections from the origin in the same HTTP response. We shipped it on two production routes — here is the model, the tradeoffs, and how it composes with use cache.
Replacing ESLint and Prettier with Biome: Field Notes from Two Production Repos
Biome is a single Rust toolchain that formats and lints JavaScript and TypeScript in one pass, replacing ESLint and Prettier. We migrated two production repositories — here is where it won, what Biome 2.0's type-aware linting changes, and where we still keep ESLint.
TanStack Query in 2026: What Server Components Didn't Replace
When Server Components matured, the claim was that a client data-fetching library was no longer needed. Two years of App Router work later, we've found it half true: RSC replaced the default fetch, not the whole job. Here's where we still reach for TanStack Query.
How We Use React 19's useOptimistic for Snappy Forms
React 19's useOptimistic renders the result of an action before the server confirms it. Our team wired it into real product forms — here is the model we use, the patterns that held up, and the pitfalls we hit.
Upgrading to Next.js 16: Field Notes from Two Production Apps
We upgraded two production applications from Next.js 15 to 16 — Turbopack by default, middleware renamed to proxy, next lint removed, async params enforced everywhere. Here is what actually broke, how we fixed it, and why the upgrade paid for itself within a week.
React Server Components in Production: Two Years of Hard-Won Lessons
Two years into shipping React Server Components in production at Devya Solutions. What works, what still hurts, and the patterns we wish we had adopted from day one — including the architectural shifts that delivered 42% smaller bundles and 180ms faster TTFB on a real e-commerce surface.
Signals vs React Compiler: The Fine-Grained Reactivity Showdown
Angular, Vue, Solid, and Svelte all bet on signals. React bet on a compiler. After a year of production usage across our portfolio at Devya Solutions, here's an honest field comparison of which approach actually wins — and why the answer depends on more than benchmarks.
Building AI-Native Frontends with Claude Code and MCP: The 2026 Workflow
AI-assisted development crossed the chasm from autocomplete to credible teammate in 2026. Here's the workflow I use to build production frontends 3-5x faster at Devya Solutions, including the MCP integrations that turn the model into a real engineering partner rather than a guessing machine.
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