DEV Community: Digital dev

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Digital dev — Fri, 17 Jul 2026 10:00:14 +0000

Introduction

If you have been building applications using Vite and standard React for the last few years, you’ve likely mastered the Single Page Application (SPA) paradigm. You know that everything runs in the browser, all your state is managed via useState or useQuery, and your "server" is just a collection of API endpoints.

However, as you move toward Next.js and the App Router, the most significant hurdle isn't the file-based routing—it is the mental shift required to understand React Server Components (RSC). For a Vite developer, this feels like learning React all over again.

In this guide, we will break down the fundamental differences and how to bridge the gap between these two worlds.

The Vite Paradigm: Everything is Client-Side

In a typical Vite + React project, your index.html is essentially empty. When a user visits your site, the browser downloads a large JavaScript bundle, executes it, and then React builds the DOM.

Common Vite workflows include:

Fetching data inside useEffect.
Handling all interactions (clicks, inputs) locally.
Shipping huge libraries (like Framer Motion or Lucide) to the client, even if they are only used for static parts of the page.

This is the "Client-First" world. Everything is a Client Component by default because there are no Server Components.

The Next.js Shift: Server by Default

In the Next.js App Router, the default state is reversed. Every file you create in the app directory is a Server Component unless you explicitly opt into the client using the 'use client' directive.

What are Server Components?

Server Components are not just "SSR (Server Side Rendering)." While SSR sends a static HTML snapshot to the browser, RSCs are components that execute exclusively on the server. They never hydrate on the client.

What this means for you:

Zero Bundle Impact: If you use a heavy Markdown parser in a Server Component, that library stays on the server. The user never downloads those bytes.
Direct Backend Access: You can query your database or call secure microservices directly inside the component function using async/await.
No useEffect or useState: Since these components don't run in the browser, they don't have a lifecycle or state.

The "Use Client" Misconception

One of the biggest mistakes Vite developers make when migrating is adding 'use client' to the top of every single file to make the errors go away. This effectively turns your Next.js app into a slow Vite app.

'use client' does not mean "this component only runs on the client." It actually means "this component is part of the interactive bundle that needs to be hydrated." It still renders on the server first to generate the initial HTML.

When to use which?

Feature	Server Component	Client Component
Fetch Data	Direct (async/await)	via API/Hooks
Access Backend Resources	Yes	No
Keep Secrets (API Keys)	Yes	No
Interactivity (onClick, onChange)	No	Yes
Browser APIs (localStorage, window)	No	Yes
State & Lifecycle (useState, useEffect)	No	Yes

Refactoring the Data Fetching Pattern

In Vite, your code looks like this:

export function UserProfile() {
  const [user, setUser] = useState(null);

  useEffect(() => {
    fetch('/api/user').then(res => res.json()).then(data => setUser(data));
  }, []);

  if (!user) return <div>Loading...</div>;
  return <h1>{user.name}</h1>;
}

In Next.js, the "Mental Model Shift" moves this logic to the server:

// No 'use client' needed here!
export default async function UserProfile() {
  const user = await db.user.findUnique({ where: { id: 1 } });

  return <h1>{user.name}</h1>;
}

This eliminates the "loading blink," reduces client-side JS, and simplifies the code significantly.

Strategic Architecture: The Component Tree

The trick to a high-performance Next.js app is to push your Client Components to the leaves of your component tree.

If you have a Search Sidebar, the layout, the nav links, and the static icons should be Server Components. Only the SearchInput field and the MobileMenuButton need the 'use client' directive. This allows you to keep the bulk of your application logic on the server while maintaining a snappy, interactive UI.

Transitioning an entire codebase from a client-centric Vite structure to this server-first architecture can be tedious, which is why tools like ViteToNext.AI are becoming popular for developers who want to automate the structural migration and focus on refining their server logic instead.

Conclusion

Moving from Vite to Next.js isn't just about changing your build tool; it's about changing where your code lives. By embracing Server Components, you offer your users faster load times and a more secure execution environment.

Stop thinking about "how do I fetch this data in the browser?" and start thinking about "why does the browser need to know about this data at all?"

Further reading: How to automate your Vite to Next.js migration

Why I Migrated My SaaS from Vite to Next.js — And What It Meant for My Users

Digital dev — Wed, 15 Jul 2026 10:00:13 +0000

The Architectural Shift: Moving Beyond the SPA Mentality

When I first launched my SaaS as a Solo-SaaS founder, the goal was speed. I chose Vite + React because the developer experience is unmatched. The Hot Module Replacement (HMR) is instantaneous, and the setup is minimal. For an initial MVP, it was the perfect choice.

However, as my user base grew and my SEO requirements became more demanding, I started hitting the ceiling of what a Client-Side Rendered (CSR) Single Page Application could provide. Migrating to Next.js wasn't just a trend-chasing move; it was a strategic decision to improve user retention and organic discoverability. Here is an honest breakdown of why I made the switch and how it impacted the end-user experience.

The Core Challenges with Vite-Based SPAs

While Vite is incredibly efficient at bundling, the fundamental architecture of a CSR app has inherent limitations for a growing product:

SEO and Metadata: In a Vite app, search engines often see a blank div until the JavaScript executes. While Googlebot is better at crawling JS now, it is far from perfect. Handling dynamic Open Graph (OG) tags for thousands of user-generated pages became a nightmare with workarounds like react-snap or third-party pre-rendering services.
The "White Flash" of Loading: Users on slower mobile connections would often stare at a blank screen for 1.5 to 2 seconds while the large JavaScript bundle was downloaded and executed.
Data Fetching Waterfall: In a standard React app, you often fetch data inside useEffect. This creates a waterfall: Load HTML → Load JS → Fetch Data → Render UI. This delay was directly impacting my conversion rates on landing pages.

Why Next.js Was the Logical Successor

Next.js solves these issues by shifting the heavy lifting to the server. By utilizing Server-Side Rendering (SSR) and Static Site Generation (SSG), the user receives a fully formed HTML document immediately.

1. Instant First Contentful Paint (FCP)

With Next.js, the initial HTML is generated on the server. My users no longer saw a loading spinner for the entire layout. They saw content immediately, while the JavaScript hydrated in the background. My FCP scores improved by over 40% globally.

2. Built-in Optimization

Next.js provides the next/image and next/font components out of the box. Manually optimizing images in a Vite project is doable, but having a framework that automatically handles WebP conversion, resizing, and lazy loading saved me weeks of manual configuration.

3. API Routes and Middleware

Moving from a separate backend/frontend repo structure to a unified Next.js codebase allowed me to handle logic like authentication checks and redirects at the edge. Using Middlewares meant I could block unauthorized users before the page even started rendering, providing a much snappier "App-like" feel.

The Migration Process: Reality Check

Migrating isn't just about changing a configuration file. You have to think about moving from react-router-dom to the Next.js App Router (or Pages Router), refactoring window and document references that don't exist during server-side execution, and rethinking your data fetching strategy.

If you are planning a similar move but find the manual refactoring of routes and state management daunting, you might find automation tools like ViteToNext.AI useful for bootstrapping the migration of your components and logic into a Next.js structure.

Code Comparison: Data Fetching

In my Vite app, a product page looked like this:

// Vite - Client Side
function Product() {
  const [data, setData] = useState(null);

  useEffect(() => {
    fetch('/api/product/123').then(res => res.json()).then(setData);
  }, []);

  if (!data) return <Skeleton />;
  return <ProductView data={data} />;
}

In Next.js (App Router), it became much simpler and faster:

// Next.js - Server Side
async function ProductPage({ params }) {
  const data = await getProduct(params.id);

  return <ProductView data={data} />;
}

Impact on the Users

The most important metric isn't the Lighthouse score—it's user behavior. Since the migration:

Bounce Rate Decreased: Specifically on our blog and landing pages, the bounce rate dropped by 15% because pages loaded perceived content instantly.
SEO Visibility Increased: Our "Features" pages started appearing in the Top 10 search results for relevant keywords because we were finally serving indexable HTML.
Mobile Performance: My SaaS is used heavily by field workers on LTE/3G. The reduction in the initial JS execution time made the app significantly more responsive on low-powered devices.

Conclusion

Vite is an incredible tool, and for many internal dashboards or lightweight tools, it remains my go-to. However, for a SaaS that relies on organic growth, SEO, and a premium user experience, Next.js provides the production-ready features that a bare-bones Vite setup requires you to build yourself.

The migration was painful for the first few days, but the long-term benefits for the business and the users made it one of the best technical decisions I've made this year.

Further reading on automating your framework migration: vitetonext.codebypaki.online

Migrating a Vite i18n App to Next.js Without Breaking Everything

Digital dev — Tue, 14 Jul 2026 10:00:10 +0000

The Architecture Shift: SPA vs. Framework

Internationalization (i18n) is one of those features that feels straightforward in a Single Page Application (SPA). You install react-i18next, wrap your app in a provider, and you're good to go. However, when you decide to migrate that Vite-based React app to Next.js for better SEO and performance, the strategy for i18n changes fundamentally.

In a Vite SPA, i18n is typically client-side. In Next.js, i18n happens at the routing and server level. If you don't plan the migration carefully, you'll end up with hydration mismatches, flashing text, or broken search engine indexing. Here is how to navigate the transition.

1. Defining the Routing Strategy

In Vite, your translations often live in the same bundle, and you swap them out using a state hook. Next.js, particularly with the App Router, prefers sub-path routing (e.g., /en/about or /es/about). This is crucial for SEO because it allows search engines to crawl localized versions of your pages individually.

Instead of relying on localStorage to remember a user's language, you should now rely on the URL. Most teams moving from Vite use a middleware approach to detect the user's preferred locale and redirect them to the correct sub-path.

2. Choosing the Right Library

If you were using react-i18next in your Vite project, you have two main paths in Next.js:

next-i18next (Pages Router): The traditional choice for the Pages Router.
next-intl or i18next + i18next-resources-to-backend (App Router): These are modern solutions that leverage Server Components.

When handling complex migrations involving many components, using a specialized tool like ViteToNext.AI can help automate the transformation of your Vite project structure into a Next.js-ready architecture, saving you hours of manual refactoring.

3. Handling Server Components vs. Client Components

one of the biggest hurdles is that useTranslation() hooks from standard i18n libraries are "Client hooks." In the App Router, you'll want to render as much as possible on the server.

The Client Component Pattern

If a component needs interactivity (like a language switcher), wrap it in a 'use client' directive. You can continue using your standard hooks here.

The Server Component Pattern

For static content, you should fetch your translations directly inside the Server Component. This avoids sending the entire translation JSON object to the client, significantly reducing the initial bundle size.

// Example of a Server Component translation
import { getTranslations } from 'next-intl/server';

export default async function HomePage() {
  const t = await getTranslations('Index');
  return <h1>{t('title')}</h1>;
}

4. Avoiding Hydration Errors

One of the most common bugs during a Vite to Next.js migration is the Hydration failed error. This happens when the server renders one language (e.g., the default 'en') but the client detects a different language (e.g., via navigator.language) and tries to render that immediately.

To prevent this, ensure your server-side locale detection (via middleware) matches the locale used during the initial render. Never rely on window or localStorage during the first pass of a component's render cycle.

5. Structuring Your JSON Files

In your Vite app, you likely imported JSON files directly: import en from './locales/en.json'. In Next.js, especially with static export or large sites, you should avoid importing translations at the top level. Instead, use a dynamic loading pattern so that a user in Germany doesn't download the Japanese translation files.

Conclusion

Migrating i18n from Vite to Next.js is not just about changing libraries; it's about shifting from a client-centric model to a server-first model. By focusing on URL-based routing, choosing a library that supports React Server Components, and ensuring consistent hydration, you can transition your application without losing your SEO ranking or frustrating your international users.

Further reading: Move your Vite project to Next.js automatically with ViteToNext.AI

Fixing Client-Server Waterfalls After Migrating from Vite to Next.js

Digital dev — Mon, 13 Jul 2026 10:00:10 +0000

The Architectural Shift

Migrating a production application from Vite to Next.js is one of the most common architectural decisions teams make as their projects scale. While Vite offers an incredible developer experience (DX) and fast builds for Single Page Applications (SPAs), Next.js provides the infrastructure needed for SEO, performance optimization through Server-Side Rendering (SSR), and advanced data fetching strategies.

However, the move isn't just about changing a configuration file. Developers often encounter a hidden performance killer immediately after the transition: The Client-Server Waterfall.

What is a Data Waterfall?

In a standard Vite-based SPA, the browser downloads the HTML shell, then the JavaScript bundle, and only then executes code to fetch data from an API. This is a waterfall in itself, but it’s expected in the SPA world.

When you move to Next.js, the promise is different: data should be ready before the user even sees the page. But if you simply copy-paste your useEffect hooks and useQuery calls into a Next.js environment, you create a "Client-Server Waterfall." This happens when the server sends a partially rendered page, and the client still has to make sequential requests to fill the gaps, leading to layout shifts and a poor Time to Interactive (TTI).

Identifying the Bottleneck

If you have recently moved your project—perhaps using a tool like ViteToNext.AI to automate the heavy lifting of the migration—you might notice that while your initial load feels faster, the interface remains in a "loading state" for just as long as it did in Vite.

Typical symptoms include:

Multiple loading spinners appearing in sequence.
The browser network tab showing API requests starting only after the main.js bundle has finished loading.
Layout jumps as components hydrate and populate data asynchronously.

Strategy 1: Transitioning to Server Components

In the Next.js App Router, the most effective way to kill waterfalls is to fetch data directly in Server Components. Unlike useEffect, which runs after the component mounts on the client, Server Components allow you to await data during the rendering phase on the server.

Before (Vite Style in Next.js)

"use client";
// This creates a waterfall: Page loads -> Client JS runs -> Fetch starts
export default function UserProfile() {
  const [data, setData] = useState(null);
  useEffect(() => {
    fetch('/api/user').then(res => res.json()).then(setData);
  }, []);

  if (!data) return <Spinner />;
  return <Profile data={data} />;
}

After (Next.js Server Component)

// This fetches on the server, sending HTML with data already present
export default async function UserProfilePage() {
  const res = await fetch('https://api.example.com/user');
  const data = await res.json();

  return <Profile data={data} />;
}

Strategy 2: Parallelizing Data Fetching

Often, a page requires data from multiple sources (e.g., user info, posts, and notifications). If you await them sequentially, you create a server-side waterfall.

// Bad: Sequential (Total time = sum of all requests)
const user = await getUser();
const posts = await getPosts(user.id);

Instead, use Promise.all to initiate requests simultaneously:

// Good: Parallel (Total time = slowest request)
const [userData, postsData] = await Promise.all([
  getUser(),
  getPosts(),
]);

Strategy 3: Using the `Suspense` Boundary

Sometimes, you don't want to block the entire page for a slow API call. Next.js allows you to stream content. By wrapping slow components in <Suspense>, you can send the fast parts of the page immediately and stream the rest as it completes.

import { Suspense } from 'react';

export default function Dashboard() {
  return (
    <main>
      <h1>Dashboard</h1>
      <Suspense fallback={<LoadingSkeleton />}>
        <SlowAnalyticsComponent />
      </Suspense>
    </main>
  );
}

Strategy 4: Preloading Images and Fonts

Vite projects often rely on CSS for font loading or simple <img> tags. Next.js provides next/image and next/font. These components automatically handle priority hints, ensuring that the browser starts fetching critical assets while the HTML is still being parsed, rather than waiting for the CSS-OM to be ready.

Conclusion

Migration from Vite to Next.js is the first step toward a more performant web application, but the real gains come from shifting your mindset from "fetch after render" to "fetch during render." By eliminating waterfalls through Server Components, parallelized requests, and Streaming/Suspense, you ensure that your users get the fastest possible experience.

Transitioning your infrastructure is a huge task, but once the architecture is updated, focusing on these data-fetching patterns will yield the highest ROI for your performance metrics.

Further reading: Optimize your Vite to Next.js migration workflow

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Digital dev — Sun, 12 Jul 2026 10:00:09 +0000

Introduction

For the last several years, the React ecosystem has been dominated by the Single Page Application (SPA) architecture. If you are a developer using Vite, your mental model of React is likely centered around the browser. You write components, Vite bundles them, and the browser executes them to render the UI.

However, the introduction of React Server Components (RSC) represents the most significant shift in the library's history. Moving from a purely client-side environment like Vite to a framework like Next.js requires more than just a syntax update; it requires a fundamental rethink of where your code lives.

In this guide, we will break down the mental model shift required to master Server and Client components.

The Vite Baseline: Everything is Client-Side

In a standard Vite + React project, every component you write is a Client Component by default. Even if you aren't using hooks like useEffect or useState in a specific file, that file is still shipped to the browser, parsed, and executed on the client's machine.

This leads to the typical SPA waterfall:

The browser downloads a minimal HTML shell.
The browser downloads the large JavaScript bundle.
React hydrates the app.
Components trigger useEffect to fetch data from an API.

While Vite is incredibly fast at bundling, it doesn't change this fundamental execution flow.

The Next.js Shift: Server by Default

When you move to the Next.js App Router, the paradigm flips. Every component is now a Server Component by default.

What are Server Components?

Server Components execute exclusively on the server (or during the build process). They never send their JavaScript code to the client. Instead, they render to a static data format (RSC payload) that React uses to update the DOM.

The Benefits:

Zero Bundle Size: Dependencies used in Server Components stay on the server. If you use a 50kb Markdown parser, it adds 0kb to your client-side bundle.
Direct Backend Access: You can query your database or file system directly inside the component.
Security: You can keep API keys and secrets hidden from the browser.

The "Use Client" Directive

This is where most Vite developers run into friction. Because Next.js assumes everything is a Server Component, you must explicitly opt-in to the client-side interactivity you're used to.

If you need to use useState, useEffect, or browser APIs like window and localStorage, you must place the "use client"; directive at the very top of your file.

"use client";

import { useState } from "react";

export default function Counter() {
  const [count, setCount] = useState(0);
  return <button onClick={() => setCount(count + 1)}>{count}</button>;
}

When to Use Which: A Decision Matrix

To help you transition, use this simple checklist:

Use Server Components when:

You need to fetch data from an API or database.
You want to keep large dependencies out of the client bundle.
You are building static elements (layouts, headers, text content).

Use Client Components when:

You need interactivity (onClick, onChange).
You need state or lifecycle effects (useState, useReducer, useEffect).
You are using browser-only APIs.

Managing the Tree: Composition is Key

One of the most confusing rules for Vite developers is that you cannot import a Server Component into a Client Component.

Since a Client Component runs on the browser, it can't execute Server Component code that might depend on database secrets. However, you can pass a Server Component as children to a Client Component. This allows you to nest server-rendered data inside client-side layouts.

Transitioning Your Workflow

Adapting to this model is often the biggest hurdle when migrating high-traffic SPAs to modern frameworks. If you find the manual restructuring of your component tree daunting, tools like ViteToNext.AI can help automate the migration of your Vite + React components into a Next.js-ready structure, handling much of the initial architectural heavy lifting for you.

Conclusion

The shift from "everything is client-side" to "server-first" is about more than performance; it's about ownership of the data flow. By embracing Server Components, you reduce the burden on your users' devices and create a more secure, SEO-friendly application.

While the learning curve is real, the resulting Developer Experience (DX) and end-user performance make it the definitive future of React development.

Further reading: How to automate your Vite to Next.js migration

Everything I Wish I Knew Before Migrating My First Vite Project to Next.js

Digital dev — Sat, 11 Jul 2026 10:00:09 +0000

Moving from a Single Page App to the Server Side

Vite has become the gold standard for developer experience (DX) when building modern Single Page Applications (SPAs). It is incredibly fast, lightweight, and gets out of your way. However, as projects grow, requirements often shift toward SEO optimization, faster First Contentful Paint (FCP), and more robust server-side capabilities.

This is usually when the conversation turns to Next.js. While both frameworks use React, the shift from a client-side Vite project to the file-based routing and Server Components of Next.js is not a simple copy-paste job. Here is everything I wish I had known before I made the leap.

1. The Strategy: CSR vs. SSR vs. RSCs

In Vite, everything is Client-Side Rendered (CSR). You send a nearly empty HTML file and a massive bundle of JavaScript to the browser, which then builds the UI.

In Next.js, the default behavior changed significantly with the introduction of the App Router. Every component is a Server Component (RSC) by default. This means they don't have access to useEffect, useState, or browser APIs like window or localStorage.

The Lesson: Don't try to make everything a Server Component on day one. Start by adding the 'use client' directive to your existing Vite components to keep them working as they did before, then slowly refactor for performance later.

2. Routing: From Code to File System

Most Vite projects use react-router-dom. You have a Routes.tsx file where you define paths and map them to components. In Next.js, the filesystem is the router.

src/app/page.tsx becomes /
src/app/about/page.tsx becomes /about
src/app/blog/[slug]/page.tsx handles dynamic routes like /blog/hello-world

You will need to replace Link from react-router-dom with Link from next/link, and useNavigate with useRouter from next/navigation.

3. Dealing with Browser APIs

Because Next.js attempts to pre-render your pages on the server, code that references window or document will crash your build.

In Vite, you never worried about this. In Next.js, you must wrap these calls in a useEffect hook (which only runs on the client) or check if the window object exists:

if (typeof window !== 'undefined') {
  const token = localStorage.getItem('token');
}

4. Automation vs. Manual Labor

Rewriting paths, updating imports, and restructuring your entire folder layout can take days if the project is large. If you are looking to skip the repetitive boilerplate of converting your routing and component structure, tools like ViteToNext.AI can automate the migration of your Vite + React project into a structured Next.js codebase, saving you hours of manual debugging.

5. The Image Component Pitfall

In Vite, you likely used standard <img> tags. While they still work in Next.js, the framework will nudge you toward the next/image component.

This component is powerful—offering automatic resizing, lazy loading, and WebP conversion—but it requires you to define specific widths and heights or use the fill property. If you have hundreds of images, be prepared for some CSS refactoring to accommodate how next/image handles layout.

6. Data Fetching Change of Heart

In your Vite app, you probably used axios or fetch inside a useEffect hook. While you can still do this in Client Components, the "Next.js way" is to fetch data directly in your Server Components using an async function:

export default async function Page() {
  const data = await fetch('https://api.example.com/data');
  const json = await data.json();

  return <div>{json.title}</div>;
}

This eliminates the need for loading states on the client and keeps your API keys secure since the code never reaches the browser.

7. Configuration: From `vite.config.ts` to `next.config.js`

Environment variables change too. In Vite, you used IMPORT.META.ENV.VITE_VARIABLE. In Next.js, you use PROCESS.ENV.NEXT_PUBLIC_VARIABLE. Remember that only variables prefixed with NEXT_PUBLIC_ are accessible to the browser; everything else is strictly server-side.

Conclusion

Migrating to Next.js isn't just a change in build tools; it's a change in mindset. You move from thinking about the "Browser" to thinking about the "Request-Response Cycle."

Start small: migrate your project structure first, get it building with 'use client', and then slowly adopt Server Components and the Next.js Image component to reap the full performance benefits of the framework.

Further reading on automating this process: ViteToNext.AI

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Digital dev — Fri, 10 Jul 2026 10:00:12 +0000

Introduction

If you have been building applications using Vite, you are likely used to a specific workflow: write React components, bundle them with esbuild/Rollup, and serve a single HTML file that fetches a large JavaScript bundle. In this world, everything is a "Client Component."

However, as the React ecosystem shifts toward the App Router and React Server Components (RSC), the architecture is fundamentally changing. For developers moving from a Vite-centric mindset to a Next.js framework, the biggest hurdle isn't the syntax—it's the mental model.

In this guide, we will break down the core differences between Server and Client components and how to adapt your Vite-based habits to this new reality.

The Vite World: Single-Page Application (SPA) Default

In a standard Vite + React project, your entire application lifecycle happens in the browser.

The browser requests the page.
The server sends a nearly empty index.html.
The browser downloads the JS bundle.
React hydrates the app, fetches data from an API via useEffect, and renders the UI.

While this is excellent for developer experience (DX) and highly interactive dashboards, it often leads to "Layout Shift" and slower "Time to Interactive" for content-heavy pages because the client has to do all the heavy lifting.

The Shift: Thinking in "Environment Splits"

With React Server Components, the paradigm shifts from "Everything happens on the client" to "Compute where it makes sense."

1. What are Server Components?

By default, in the Next.js App Router, every component is a Server Component. These components execute only on the server. They never send their code to the client-side bundle. This allows you to:

Access backend resources directly: You can query your database or file system inside the component.
Keep secrets safe: API keys and sensitive logic stay on the server.
Reduce bundle size: Large dependencies (like a markdown parser or date library) stay on the server and only the resulting HTML is sent to the user.

2. What are Client Components?

Client Components are what you are used to in Vite. They are marked with the 'use client'; directive at the top of the file. These are necessary when you need:

Interactivity: Using onClick, onChange, etc.
State and Effects: Using useState, useReducer, or useEffect.
Browser APIs: Accessing window, document, or localStorage.

Data Fetching: Bye-bye, useEffect

One of the most drastic changes for a Vite developer is how data is fetched. In Vite, you likely do this:

// Vite patterns
function UserProfile() {
  const [user, setUser] = useState(null);

  useEffect(() => {
    fetch('/api/user').then(res => res.json()).then(data => setUser(data));
  }, []);

  if (!user) return <Loading />;
  return <div>{user.name}</div>;
}

In the Server Component world, this becomes an async function. Since it runs on the server, you can fetch data directly without an intermediate API route or complex loading states in the client code:

// Next.js Server Component pattern
async function UserProfile() {
  const user = await db.user.findUnique({ where: { id: 1 } });

  return <div>{user.name}</div>;
}

The Composition Pattern

A common mistake when migrating is putting 'use client'; at the very top of your layout, effectively turning your whole app back into a Vite-style SPA. To truly benefit from RSC, you must follow the "Lifting Movement"—keep your data fetching in Server Components and push interactivity to the leaves of your component tree.

If you find the architectural shift of moving your existing Vite codebase into this structure daunting, tools like ViteToNext.AI can help automate the migration process by restructuring your project into the Next.js App Router format.

When to Use Which? A Quick Cheat Sheet

Requirement	Server Component	Client Component
Fetch data from DB	✅	❌
Access sensitive info (API keys)	✅	❌
Reduce client-side JS	✅	❌
Use `useState()` or `useReducer()`	❌	✅
Use `useEffect()` or `useLayoutEffect()`	❌	✅
Use event listeners (`onClick`)	❌	✅
Use custom hooks that depend on state	❌	✅

Best Practices for the Transition

Shared Components: If a component doesn't use hooks or browser APIs, keep it as a Server Component. It stays "environment agnostic."
Passing Data: You can pass data from a Server Component to a Client Component as props, provided the data is "serializable" (JSON-like objects, strings, numbers). You cannot pass functions across the server-client boundary.
Component Placement: Keep Client Components as small as possible. Instead of making a whole Navbar a Client Component just for a toggle, move the ToggleButton into its own file with 'use client';.

Conclusion

Moving from Vite to a Server Component architecture requires unlearning the habit of putting everything in useEffect. By embracing the server as the primary place for data fetching and logic, you unlock better performance and a cleaner separation of concerns. It is no longer about just "building a UI"; it is about orchestrating the flow of data between the server and the browser.

Further reading: Explore vitetonext.codebypaki.online for migrating your existing Vite apps to the App Router automatically.

I Migrated My Vite SaaS to Next.js in 10 Minutes: A Deep Dive into the Transition

Digital dev — Thu, 09 Jul 2026 10:00:13 +0000

The Architectural Crossroads

For the past 14 months, my SaaS project lived happily in a Vite-powered environment. Vite is incredible; the developer experience is second to none, and the Hot Module Replacement (HMR) is lightning fast. However, as the product grew and SEO became a primary customer acquisition channel, the limitations of a Client-Side Rendered (CSR) Single Page Application (SPA) became glaringly obvious.

While I loved the simplicity of Vite, I needed the powerhouse features of Next.js: Server-Side Rendering (SSR), Incremental Static Regeneration (ISR), and built-in API routes. The problem? Total migration usually takes days of refactoring file structures and routing logic.

Why Move from Vite to Next.js?

Before jumping into the "how," it is important to understand the "why." Vite is a build tool, while Next.js is a full-stack framework.

SEO Performance: In a Vite SPA, the browser receives a nearly empty HTML file and a large JavaScript bundle. Search engine crawlers have improved, but they still prefer the pre-rendered HTML that Next.js provides.
Initial Load Speed: With Next.js, the user sees content immediately. In my Vite app, users were staring at a loading spinner for 2.5 seconds while the JS hydrated.
Image Optimization: The next/image component alone saved me hours of manual WebP conversion and lazy-loading implementation.

The Technical Challenges of Migration

Manually migrating a large React codebase is a chore. You have to:

Convert react-router-dom syntax to the Next.js File-system Based Routing.
Replace <a> tags with <Link> components.
Manage the window object usage (which breaks SSR).
Handle environment variables (changing VITE_ to NEXT_PUBLIC_).

Instead of doing this manually, I used ViteToNext.AI to automate the heavy lifting of refactoring my components and routing folder structure in minutes. It handled the boilerplate translation that usually drains a weekend of productivity.

The 10-Minute Workflow

Here was the step-by-step process of the transition:

1. Structural Alignment

In Vite, my entry point was main.tsx. In Next.js (App Router), I had to move my provider logic into a layout.tsx. The migration tool automatically identified my BrowserRouter paths and projected them into the app/ directory hierarchy.

2. Handling the Global State

Most Vite apps use a Provider wrapper at the root. In Next.js, you must ensure these are marked with the 'use client' directive.

// Example of a converted provider
'use client';

import { AuthProvider } from './context/Auth';

export function ClientProviders({ children }: { children: React.ReactNode }) {
  return <AuthProvider>{children}</AuthProvider>;
}

3. API Routes and Data Fetching

I shifted my useEffect data fetching to Server Components where possible. This reduced the client-side bundle size significantly. Instead of fetching data on the client:

// Old Vite way
const [data, setData] = useState(null);
useEffect(() => {
  fetch('/api/user').then(res => res.json()).then(setData);
}, []);

I transitioned to direct database or API calls within the component:

// New Next.js way
async function Page() {
  const data = await getData();
  return <Dashboard data={data} />;
}

The Results: Metrics After the Move

After deploying the Next.js version to Vercel, the results were measurable within the first hour:

Largest Contentful Paint (LCP): Dropped from 2.8s to 0.9s.
Total Blocking Time (TBT): Improved by 40% due to code splitting.
Bundle Size: The initial JS payload decreased because I moved heavy libraries like moment.js to server-only logic.

Conclusion: Was it Worth It?

If you are building a tool behind a login wall where SEO doesn't matter, Vite is likely all you need. But for any SaaS aiming for organic growth and top-tier performance, Next.js is the industry standard for a reason. Automating the migration allowed me to bypass the "boring" parts of refactoring and jump straight into optimizing my new SSR-powered features.

Changing frameworks doesn't have to be a month-long project if you use the right automation tools to bridge the gap between Vite and Next.js.

Further reading: Explore automated migration strategies at ViteToNext.AI.

How Abstract Syntax Trees (ASTs) Power Modern Code Transformations

Digital dev — Wed, 08 Jul 2026 10:00:10 +0000

Understanding the Complexity of Migration

When we talk about moving from a Client-Side Rendered (CSR) setup like Vite to a framework like Next.js, we aren't just changing a few script tags. We are shifting paradigms. You are moving from react-router-dom to File-based Routing, and potentially from useEffect data fetching to Server Components or getStaticProps.

Doing this manually is error-prone. Regex-based find-and-replace is notoriously dangerous for code refactoring because it lacks context. If you replace the word Link, you might accidentally break a variable named myLink while missing the actual <Link> component import. This is where Abstract Syntax Trees (AST) come into play.

What is an AST?

An Abstract Syntax Tree is a tree representation of the abstract syntactic structure of source code. Each node in the tree denotes a construct occurring in the source code. Unlike plain text, an AST understands the hierarchy and the relationship between different parts of your code.

For example, in a React component, an AST knows that:

import statements are at the top level.
const MyComponent is a variable declaration.
The return statement contains JSX elements.
Local variables are scoped within the function block.

The Transformation Pipeline

To transform code without breaking it, a sophisticated migration tool follows a three-step process: Parsing, Transformation, and Generation.

1. Parsing into a Tree

The source code (Vite/React) is fed into a parser (like Babel, SWC, or Acorn). The parser tokens the strings and builds a tree. In a Vite project, we might find a specific pattern where useNavigate from react-router-dom is used. The parser identifies this as a Hook call within a functional component.

2. Transformation (The Logic)

This is where the magic happens. A visitor pattern is used to traverse the tree. When the visitor hits a specific node—for instance, a Link component from react-router-dom—it doesn't just change the text. It modifies the node's properties to match the next/link API.

If the engine detects a complex Vite configuration, it uses logic similar to ViteToNext.AI to intelligently map environment variables and Vite-specific plugins to their Next.js equivalents while preserving the original logic flow.

3. Code Generation

Finally, the modified AST is turned back into code. During this stage, a code generator ensures that the formatting is preserved (or updated) and that the resulting syntax is valid TypeScript or JavaScript. Because we worked on the "idea" of the code (the tree) rather than the text, we don't end up with broken brackets or missing semicolons.

Why AST is Superior to Regex

Consider the task of converting a BrowserRouter setup to Next.js's app directory.

With Regex:

You might replace instances of path="/about" with filenames.
But what if the path is dynamically generated via a constant? Regex fails.

With AST:

The tool identifies the constant assigned to the path.
It traces where that constant is defined.
It can then decide whether to create a folder named [id] or a static folder based on the actual value of that constant.

Automating the Boring Stuff

While understanding ASTs is a superpower for any developer, writing custom Babel transforms for a one-time migration is a massive time sink. The goal of modern tooling is to abstract this complexity. By analyzing the dependency graph of a Vite project, an AST-based migrator can automatically determine which components should be labeled with 'use client' and which can remain as Server Components in Next.js.

This level of granularity is only possible because ASTs allow us to see which React hooks are being used. If a file uses useState or useEffect, the transformer identifies this node and prepends the necessary directive for Next.js compatibility.

Conclusion

Abstract Syntax Trees are the unsung heroes of the modern JavaScript ecosystem. They power our linting (ESLint), our bundling (Vite), and our refactoring tools. By treating code as data rather than text, we can perform complex migrations—like moving from Vite to Next.js—with surgical precision and minimal manual overhead.

Further reading: Explore how ViteToNext.AI handles these transformations automatically.

Migrating Auth from Vite to Next.js: Supabase, Clerk, and Auth.js Patterns That Actually Work

Digital dev — Tue, 07 Jul 2026 10:00:15 +0000

The Architectural Shift: Client-Side vs. Server-Side Auth

When you build a standard React SPA using Vite, your authentication logic usually lives entirely in the browser. You likely have a useAuth hook, a ProtectedRoutes component using React Router, and a JWT stored in memory or local storage.

Moving to Next.js (specifically the App Router) changes the fundamental "where" of authentication. In Next.js, auth happens on the server before the page even renders. This prevents the "flash of unauthenticated content" common in SPAs and improves security by utilizing HTTP-only cookies.

If you are planning a large-scale transition, you can streamline the structural changes by using tools like ViteToNext.AI to automate the conversion of your Vite components into Next.js-compatible structures, but you will still need to manually rethink your auth provider's implementation.

1. Supabase: From `supabase-js` to `ssr` package

In a Vite app, you likely initialized Supabase like this:

import { createClient } from '@supabase/supabase-js';
export const supabase = createClient(URL, KEY);

The Next.js Pattern

In Next.js, you must use @supabase/ssr. This is because the client needs to be able to read and write cookies across Server Components, Client Components, and Middleware.

You'll need a utility to create a server client:

// utils/supabase/server.ts
import { createServerClient } from '@supabase/ssr'
import { cookies } from 'next/headers'

export async function createClient() {
  const cookieStore = await cookies()

  return createServerClient(process.env.SUPABASE_URL!, process.env.SUPABASE_ANON_KEY!, {
    cookies: {
      getAll() { return cookieStore.getAll() },
      setAll(cookiesToSet) {
        cookiesToSet.forEach(({ name, value, options }) => cookieStore.set(name, value, options))
      },
    },
  })
}

The Strategy: Use Middleware to refresh the user session. This ensures that every time a user navigates to a new route, the server checks if their session is still valid before rendering the page.

2. Clerk: The Easiest Transition

Clerk is arguably the easiest provider to migrate from Vite to Next.js because they provide high-level components that abstract the heavy lifting.

The Vite Pattern

In Vite, you wrap your app in <ClerkProvider> and use <SignedIn> or <SignedOut> tags. Route protection is typically handled in your router config.

The Next.js Pattern

Next.js allows Clerk to handle protection at the edge. Instead of wrapping routes in components, you use a middleware.ts file:

import { clerkMiddleware, createRouteMatcher } from "@clerk/nextjs/server";

const isPublicRoute = createRouteMatcher(['/sign-in(.*)', '/sign-up(.*)', '/']);

export default clerkMiddleware((auth, request) => {
  if (!isPublicRoute(request)) {
    auth().protect();
  }
});

This is significantly more performant than the Vite approach because the request is intercepted before it hits your page logic, reducing TTFB (Time to First Byte).

3. Auth.js (NextAuth): The Custom Powerhouse

If you were using a custom backend or a generic OIDC provider in Vite, you were likely managing local storage tokens manually. In Next.js, Auth.js is the gold standard.

Implementation Pattern

Unlike Vite where you might have an authContext.tsx, Auth.js uses a centralized configuration inside auth.ts.

import NextAuth from "next-auth"
import GitHub from "next-auth/providers/github"

export const { handlers, auth, signIn, signOut } = NextAuth({
  providers: [GitHub],
})

To protect a page in Vite, you would check if (!user) return <Loading />. In Next.js, you do it directly in the Server Component:

// app/dashboard/page.tsx
import { auth } from "@/auth"

export default async function Page() {
  const session = await auth()
  if (!session) return <div>Not authenticated</div>

  return <div>Welcome {session.user?.name}</div>
}

Common Pitfalls During Migration

Hydration Mismatches: Accessing auth state in a Client Component that differs from the Server's state will throw an error. Always prioritize server-side checks.
Environment Variables: Vite uses VITE_ prefixes; Next.js uses NEXT_PUBLIC_. Remember that sensitive keys (like SUPABASE_SERVICE_ROLE) must never have the NEXT_PUBLIC_ prefix, as they should only exist on the server.
The "Window" trap: In Vite, you might check window.localStorage. In Next.js, window is undefined during SSR. Shift your state management to cookie-based libraries provided by your auth vendor.

Conclusion

Migrating auth from Vite to Next.js is less about changing code and more about changing your mental model. You are moving from a "Client-First" approach to a "Server-First" approach. By leveraging Middleware and Server Components, you gain a more secure, faster app that doesn't leak sensitive logic to the browser.

Further reading: ViteToNext.AI Migration Guide

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Digital dev — Mon, 06 Jul 2026 10:00:13 +0000

Introduction

If you are a React developer who has spent the last few years living in the Vite ecosystem, you are likely accustomed to a specific workflow: the Client-Side Rendering (CSR) model. You write components, Vite bundles them, and the browser executes them to generate the UI.

However, as the industry drifts toward Next.js and the App Router, a new paradigm is taking center stage: React Server Components (RSC). For those making the leap from Vite to Next.js, this isn't just a syntax change—it is a fundamental mental model shift. Understanding where the boundary lies between Server and Client components is the key to unlocking performance and avoiding common "hydration mismatch" pitfalls.

The Vite Foundation: Everything is the Client

In a standard Vite + React project, your entry point is usually an index.html with a <div id="root"></div>. The entire React tree is rendered on the client side. JavaScript handles the routing, data fetching (often via useEffect), and event handling.

When we move to Next.js, the "default" flips. Every component in the App Router is a Server Component unless you explicitly mark it otherwise.

What are Server Components?

Server Components are exactly what they sound like: components that execute only on the server. They are never sent to the browser. They allow you to:

Directly access backend resources: You can query your database or internal APIs directly within the component function.
Reduce Bundle Size: Since the code for Server Components stays on the server, third-party libraries used only in these components (like markdown-parser or date-fns) don't bloat your client-side bundle.
Automatic Code Splitting: Next.js handles the orchestration of which parts of the UI need JavaScript and which do not.

// A Server Component example in Next.js
async function ProfilePage() {
  const user = await db.user.findUnique({ where: { id: 1 } }); // Direct DB access!

  return (
    <div>
      <h1>{user.name}</h1>
      <p>{user.bio}</p>
    </div>
  );
}

The "Use Client" Boundary

So, where does the Interactivity go? When you need hooks like useState, useEffect, or browser APIs like localStorage, you must use Client Components. You define these by adding the 'use client'; directive at the very top of the file.

It is important to remember that "Client Component" is a bit of a misnomer; in Next.js, these are still pre-rendered on the server to generate HTML, but their JavaScript code is then hydrated in the browser to become interactive.

The Mental Model Shift: The Composition Pattern

One of the biggest hurdles for Vite developers is realizing that you can import Client Components into Server Components, but not the other way around.

Wait, how do you put a Server Component inside a Client Component then? The answer is Composition (using children).

Instead of importing a Server Component into a Client Component:

// INCORRECT
'use client';
import ServerComp from './ServerComp';

export default function ClientComp() {
  return <div><ServerComp /></div>;
}

You pass the Server Component as a child:

// CORRECT
export default function ParentServerComponent() {
  return (
    <ClientWrapper>
      <ServerComponent />
    </ClientWrapper>
  );
}

Moving from Vite to Next.js

If you have a large Vite codebase, manually refactoring every component to fit this new paradigm can be daunting. While you can technically mark everything as "use client" to get it running quickly, you lose all the performance benefits of Server Components. If you're looking to automate this transition, tools like ViteToNext.AI can significantly speed up the process by intelligently handling the framework conversion for you.

Comparison Table: When to use which?

Feature	Server Component	Client Component
Data Fetching	Fetch at the source (DB/API)	Fetch via `useEffect` / Tanstack Query
Interactivity	No (No onClick, onChange)	Yes (Full React state)
Browser APIs	No (No window, localStorage)	Yes
Hooks	No	Yes (useState, useMemo, etc.)
Bundle Size	Zero impact on client	Included in JS bundle

Best Practices for the Transition

Keep the "leaf" components Client-side: Small, interactive components like buttons, inputs, and toggles should be Client Components.
Keep the "containers" Server-side: Layouts, page wrappers, and data-heavy sections should stay as Server Components.
Move Data Fetching Up: Instead of fetching data in a useEffect inside a child component, try to fetch it in the parent Server Component and pass the data down as props.
Shared Components: If a component doesn't use hooks or browser APIs, leave it as a Server Component. It will work just fine when imported into other Server Components.

Conclusion

Adapting to the Server/Client component split requires rethinking how your data flows and how your UI is structured. The transition from Vite's purely client-side world to the hybrid architecture of Next.js feels complex at first, but the rewards are significant: faster initial loads, better SEO, and a vastly reduced JavaScript footprint.

Start small by converting your static pages first, and gradually move your interactivity into focused "Client" islands.

Further reading: Explore how to automate your project migration at vitetonext.codebypaki.online.

Everything I Wish I Knew Before Migrating My First Vite Project to Next.js

Digital dev — Sun, 05 Jul 2026 10:00:13 +0000

The Shift from SPA to Meta-Frameworks

For the past few years, Vite has been the gold standard for building Single Page Applications (SPAs). It’s fast, the Developer Experience (DX) is unparalleled, and the plugin ecosystem is robust. However, as an application grows, you often hit the inevitable wall: the need for better SEO, faster Initial Page Loads, and simplified API routing.

Moving a project from Vite to Next.js isn't just a change of build tools; it's a paradigm shift from client-side logic to a hybrid environment. Having recently completed this transition for a large-scale dashboard, here is everything I wish I knew before I started.

1. The Directory Structure is Opinionated

In Vite, your file structure is largely up to you. You usually have an index.html in the root and a src/main.tsx entry point. Routing is handled by a library like react-router-dom in a flat or nested component structure.

Next.js (App Router) uses a file-system based router. Every folder inside app/ represents a route segment.

Vite: src/pages/Dashboard.tsx accessed via <Route path="/dashboard" ... />.
Next.js: app/dashboard/page.tsx is automatically mapped to /dashboard.

You will need to spend time physically moving files and renaming them to page.tsx, layout.tsx, and loading.tsx to leverage the built-in features.

2. "use client" is Your New Best Friend

By default, every component in the Next.js App Router is a Server Component. This is great for performance, but it breaks almost every Vite component that relies on useState, useEffect, or browser APIs like window and localStorage.

When migrating, you'll likely see a sea of errors. You must add the "use client"; directive at the top of any file that utilizes interactivity or browser-only globals.

Strategy: Don't try to make everything a Server Component on day one. Mark your top-level page components as Client Components to get the app running, then gradually refactor leaf nodes back to Server Components to optimize.

3. Environment Variables Change Prefixes

This is a small but annoying hurdle. Vite uses VITE_ as the prefix for variables exposed to the client. Next.js uses NEXT_PUBLIC_.

# Vite
VITE_AIP_URL=https://api.example.com

# Next.js
NEXT_PUBLIC_API_URL=https://api.example.com

You'll need to do a global search-and-replace for import.meta.env.VITE_ to process.env.NEXT_PUBLIC_. If you have a large configuration, this manual mapping can be tedious, which is why many developers use ViteToNext.AI to automate the heavy lifting of refactoring environment access and routing structures.

4. Handling Global CSS and Assets

In Vite, you can import CSS anywhere. In Next.js, while you can still do this for CSS Modules, global CSS (like Tailwind or a base index.css) must be imported in the root layout.tsx.

Furthermore, the public folder handling is slightly different. In Vite, assets are often processed by the bundler. In Next.js, files in /public are served at the root path, so you should update your <img> tags to use the Next.js <Image /> component for automatic optimization.

5. Replacing React Router

If you use react-router-dom, you lose useNavigate and useParams. You must switch to next/navigation.

useNavigate() -> useRouter()
useLocation() -> usePathname()
useParams() -> useParams() (same name, different import)

The biggest challenge here is that useRouter from Next.js behaves differently (it's asynchronous in some contexts), and you can no longer wrap your entire app in a single <BrowserRouter>.

6. Authentication and Middleware

In a Vite SPA, you might check for a JWT in a ProtectedRoute component. In Next.js, this should move to middleware.ts. This allows you to check for auth cookies before the page even begins to render, preventing that "flash" of unauthenticated content often seen in SPAs.

Conclusion

Migrating from Vite to Next.js is a wise move for SEO and performance, but it requires a mental shift regarding where your code executes. Focus first on fixing imports and environment variables, then tackle the routing, and finally optimize by moving logic from Client Components to Server Components.

Further reading on automated migration strategies: vitetonext.codebypaki.online

DEV Community: Digital dev

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Introduction

The Vite Paradigm: Everything is Client-Side

The Next.js Shift: Server by Default

What are Server Components?

The "Use Client" Misconception

When to use which?

Refactoring the Data Fetching Pattern

Strategic Architecture: The Component Tree

Conclusion

Why I Migrated My SaaS from Vite to Next.js — And What It Meant for My Users

The Architectural Shift: Moving Beyond the SPA Mentality

The Core Challenges with Vite-Based SPAs

Why Next.js Was the Logical Successor

1. Instant First Contentful Paint (FCP)

2. Built-in Optimization

3. API Routes and Middleware

The Migration Process: Reality Check

Code Comparison: Data Fetching

Impact on the Users

Conclusion

Migrating a Vite i18n App to Next.js Without Breaking Everything

The Architecture Shift: SPA vs. Framework

1. Defining the Routing Strategy

2. Choosing the Right Library

3. Handling Server Components vs. Client Components

The Client Component Pattern

The Server Component Pattern

4. Avoiding Hydration Errors

5. Structuring Your JSON Files

Conclusion

Fixing Client-Server Waterfalls After Migrating from Vite to Next.js

The Architectural Shift

What is a Data Waterfall?

Identifying the Bottleneck

Strategy 1: Transitioning to Server Components

Before (Vite Style in Next.js)

After (Next.js Server Component)

Strategy 2: Parallelizing Data Fetching

Strategy 3: Using the Suspense Boundary

Strategy 4: Preloading Images and Fonts

Conclusion

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Introduction

The Vite Baseline: Everything is Client-Side

The Next.js Shift: Server by Default

What are Server Components?

The "Use Client" Directive

When to Use Which: A Decision Matrix

Managing the Tree: Composition is Key

Transitioning Your Workflow

Conclusion

Everything I Wish I Knew Before Migrating My First Vite Project to Next.js

Moving from a Single Page App to the Server Side

1. The Strategy: CSR vs. SSR vs. RSCs

2. Routing: From Code to File System

3. Dealing with Browser APIs

4. Automation vs. Manual Labor

5. The Image Component Pitfall

6. Data Fetching Change of Heart

7. Configuration: From vite.config.ts to next.config.js

Conclusion

Server Components vs Client Components: The Mental Model Shift Every Vite Developer Needs

Introduction

The Vite World: Single-Page Application (SPA) Default

The Shift: Thinking in "Environment Splits"

1. What are Server Components?

2. What are Client Components?

Data Fetching: Bye-bye, useEffect

The Composition Pattern

When to Use Which? A Quick Cheat Sheet

Best Practices for the Transition

Conclusion

I Migrated My Vite SaaS to Next.js in 10 Minutes: A Deep Dive into the Transition

The Architectural Crossroads

Why Move from Vite to Next.js?

The Technical Challenges of Migration

The 10-Minute Workflow

1. Structural Alignment

Strategy 3: Using the `Suspense` Boundary

7. Configuration: From `vite.config.ts` to `next.config.js`

1. Supabase: From `supabase-js` to `ssr` package