You should know this before choosing Next.js

Picking the technology stack for a project is an important and consequential decision. In the enterprise space in particular, it often involves a multi-year commitment with long-lasting implications on the roadmap of the project, the pace of its development, the quality of the deliverables, and even the ability to assemble and maintain a happy team.

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One or Two? How Many Queues?

Very applied queue theory. There’s a well-known rule of thumb that one queue is better than two. When you’ve got or people waiting to check out at the supermarket, having a single shared queue improves utilization and reduces wait times.

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Usability testing with disabled users is a good investment

Usability testing with disabled users will highlight accessibility barriers missed in typical accessibility audits. I was speaking about “alt text” all the way back in the early 90’s. I’m still raising awareness about that.

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The state of the front-end and full-stack job market

After an engaging discussion about the front-end and full-stack market, I couldn’t stop wondering: Are my skills and interests in demand? While there are plenty of development-related surveys, the results gauge preference and interest, not demand.

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UI Algorithms: A Tiny Undo Stack

I’ve needed this before - a couple of times. Third time I figured I needed something small, nimble - yet complete. And - at the same time - wondering about how to do it in a very simple manner. I think it worked out great, so let’s dig in. Most UIs will have some form of undo functionality.

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Deploying a Next.js App to Production in any server

Updated for Next.js 15. When it comes to deploying a Next.js app to production, generally everyone thinking starts from Vercel, and ends with Netlify, Firebase type providers. Not only are these providers very expensive, but they also have a lot of limitations.

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Build and deploy Remote Model Context Protocol (MCP) servers to Cloudflare

It feels like almost everyone building AI applications and agents is talking about the Model Context Protocol (MCP), as well as building MCP servers that you install and run locally on your own computer. You can now build and deploy remote MCP servers to Cloudflare.

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Is Vite faster than Turbopack?

Vite comes from the French word for “quick”, but is it really? I’ve spent the last 3, almost 4 years building our web app at Particl with Next.js. For the most part, it has been a great, productive experience.

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Node.js TSC Votes to Stop Distributing Corepack

The Node.js Technical Steering Committee (TSC) has officially voted to stop distributing Corepack with future versions of Node.js. The decision, made via an encrypted ballot, will impact future releases of Node.js (i.e. 25+), though Corepack will remain available in Node.

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Single Sign On: Our Experience with Auth0

Having a monolithic architecture has many advantages. One big advantage is that everything is in a single place. There is often one domain name, one service, one database, one release pipeline etc. It makes things reasonably simple.

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AI Trends Disrupting Software Teams

The software industry is experiencing its most significant transformation since cloud computing. AI is fundamentally changing how we build, operate, and interact with software. As someone who has observed and written about major recent industry shifts from SOA to microservices, and from containers to serverless I see AI driving an even more profound change.

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How can on-site servers enable richer retail experiences?

When people think about omnichannel retail experiences, they often start by considering in-store and digital as two distinct elements. But for a modern retailer, in-store is just another kind of digital, sometimes referred to as “phygital”.

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Building an Authorized RAG Chatbot with Oso Cloud

Retrieval-Augmented Generation (RAG) lets you enhance large language model (LLM) applications by supplementing your users’ prompts with context from internal sources. For instance, you may want to provide an internal chatbot to your employees.

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My DOs and DON’Ts of Software Architecture

As the new year approaches, it’s a time of reflection, and this extends into the workplace. So I thought I’d share some of my own personal “do’s” and “don’ts” at work, which I’ve formulated throughout the years.

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Web Components Vs. Framework Components: What’s The Difference?

Some critics question the agnostic nature of Web Components, with some even arguing that they are not real components. Gabriel Shoyomboa explores this topic in-depth, comparing Web Components and framework components, highlighting their strengths and trade-offs, and evaluating their performance.

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Writing static websites with Vite and React

In this post, I talk about vite-ssg-react, which is an attempt to configure Vite so that we may use React to write static websites. E.g.: Vite is an awesome bootstrapping tool, but the assumed use case is that you're writing a SPA.

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Introducing command and commandfor

Buttons are essential to making dynamic web applications. Buttons open menus, toggle actions, and submit forms. They provide the foundation of interactivity on the web. Making buttons simple and accessible can lead to some surprising challenges.

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React Trends in 2024

The year 2024 got me excited about React's ecosystem again. Despite the various challenges and dramas (the biggest one of them moving React to the server with React Server Components) we had last year, there are emerging React trends that everyone should have on their watchlist.

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The Great ESLint v9 Migration Adventure: A Developer's Survival Guide 🧗‍♂️

As a frontend developer who has spent years working with complex TypeScript codebases, I’ve learned that solid linting is essential for maintaining long-term code quality.

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Next.js vs TanStack

See this post for inspiration. Over the past few months, I’ve moved as much code as possible away from Next.js. While I see why people are attracted to it and its growing ecosystem, I am no longer sipping the KoolAid.

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Unlock exciting use cases with the Document Picture-in-Picture API

The Document Picture-in-Picture API (Document PiP API) lets web applications open a floating, always-on-top window (a picture-in-picture window) that can display any arbitrary HTML content.

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AI's effects on programming jobs

There's been a whole lot of discussion recently about the impact of AI on the market for web developers, for programmers in general, and even more generally the entire labor market.

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How to get deep traces in your Node.js backend with OTel and Deno

One important facet of running production software is observability—monitoring logs, traces, and metrics so you can identify and fix issues quickly. In Node.js servers, adding observability isn’t trivial. You have to add instrumentation code, modify your logger, and configure various services.

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Building APIs with Next.js

This guide will cover how you can build APIs with Next.js, including setting up your project, understanding the App Router and Route Handlers, handling multiple HTTP methods, implementing dynamic routing, creating reusable middleware logic, and deciding when to spin up a dedicated API layer.

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How GitHub engineers learn new codebases

No matter where you are in your coding career, you will likely come across a new codebase or problem domain that is completely unfamiliar to you. Because codebases can be filled with many layers of design patterns, bugfixes, and temporary workarounds, learning a new one can be a time-consuming and frustrating process.

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How ECMAScript Engines Optimize Your Variables

In this post, we will dive into how ECMAScript engines store variables, go over storage optimizations, and learn about scope analysis. If you are an ECMAScript developer, you will get some practical tips to improve the performance of your code.

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Abusing SQLite to Handle Concurrency

SkyPilot uses the venerable SQLite for state management. SQLite can handle millions of QPS, and terabytes of data. However, our efforts to scale our Managed Jobs feature ran up against the one downfall of SQLite: many concurrent writers.

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How the Jotai Store API Is Inspired by the WeakMap API

The Jotai store API was introduced in Jotai v2. Before v2, it was an internal API. Jotai conceptually functions like a WeakMap, and the store API is designed to reflect that. By the way, Jotai’s implementation internally uses multiple WeakMaps.

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I use Cursor daily - here's how I avoid the garbage parts

AI for coding is in a weird spot right now. You get people claiming that you can build a complete SaaS in 3 days, and others saying that it's worse than useless. Both of these people are probably just exaggerating or straight up lying.

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Astro 5.4

Astro 5.4 brings remote image optimization in Markdown, enhanced security for dev and preview servers, RegExp support for Vercel ISR excludes, and more! To upgrade an existing project, use the automated @astrojs/upgrade CLI tool.

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The URL is a great place to store state in React

Here’s what we want to achieve: Let’s say we have a modal (dialog) component that allows the user to perform some important actions which are part of the core flow. We would like the modal to stay open even after the user reloads the page.

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Introducing agents.json

Enabling AI agents to interact with APIs is difficult. We faced the same problem as many others building agents: altering APIs to work reliably with LLMs and executing multiple API calls successfully in a row is a trial and error process.

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Beyond React.memo: Smarter Ways to Optimize Performance

When it comes to React performance optimization, React.memo is often the first tool developers reach for. It’s the hammer we grab when we notice re-render issues, and suddenly everything looks like a nail.

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Crossy Road with React Three Fiber

In this tutorial, we learn how to create a simplified clone of the mobile game Crossy Road with React Three Fiber. The goal of the game is to move a character through an endless path of static and moving obstacles. We have to go around the trees and avoid getting hit by a car or a truck.

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How The New York Times systematically migrated from Enzyme into React Testing Library

As part of our efforts to maintain and improve the functionality and performance of The New York Times core website, we recently upgraded our React library from React 16 into React 18.

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Angular 19.2 Is Now Available

And we’re back with Angular’s latest minor release, version 19.2, bringing new APIs and experimental features to empower developers on their next great app. In Angular v19 we released the experimental resource API, continuing our reactivity story to a new chapter — asynchronous reactivity.

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Build Your First MCP Tool in Cursor in Just 2 Minutes

Cursor's AI is powerful, but it can't do everything. What if you could give it the ability to interact with your specific workflows, tools, and data? This lesson shows you how to do exactly that by building a custom MCP tool – and we'll do it in under two minutes!

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The DeepSeek Series: A Technical Overview

The appearance of DeepSeek Large-Language Models has caused a lot of discussion and angst since their latest versions appeared at the beginning of 2025. But much of the value of DeepSeek's work comes from the papers they have published over the last year.

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Node just added TypeScript support. What does that mean for Deno?

Node.js recently added native TypeScript support in version 22.6 (stabilized in 23.6), a welcome enhancement simplifying setups for TypeScript users. This has sparked questions within the community about how Node’s new capabilities compare with Deno’s existing TypeScript integration.

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What is Model Context Protocol (MCP)? How it simplifies AI integrations compared to APIs

MCP (Model Context Protocol) is a new open protocol designed to standardize how applications provide context to Large Language Models (LLMs). Think of MCP like a USB-C port but for AI agents: it offers a uniform method for connecting AI systems to various tools and data sources.

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JavaScript Fatigue Strikes Back

In recent months, I’ve returned to writing code daily. It’s been a lot of fun. While I enjoy Swift, Python, and Ruby, we’ve been building in TypeScript lately since it’s a good fit for our latest project.

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how to gain code execution on millions of people and hundreds of popular apps

this started when i was looking into cursor, an ai text editor. also, i use lulu by objective-see on my laptop, so when i downloaded the cursor installer, i got this pop-up. now, what the hell is todesktop? i thought i was downloading cursor? well, looking at their website, they seem to be an electron app bundler service alongside providing a SDK for electron apps. so it appears the installer i downloaded is actually managed by todesktop, not cursor.

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Building APIs with Next.js

This guide will cover how you can build APIs with Next.js, including setting up your project, understanding the App Router and Route Handlers, handling multiple HTTP methods, implementing dynamic routing, creating reusable middleware logic, and deciding when to spin up a dedicated API layer.

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What is TypeScript? An overview for JavaScript programmers

Read this blog post if you are a JavaScript programmer and want to get a rough idea of what using TypeScript is like (think first step before learning more details). You’ll get answers to the following questions: Note: This blog post does not explain why TypeScript is useful.

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Announcing TanStack Form v1

We're excited to announce the first stable version of TanStack Form is live and ready for usage in production! 🥳 We support five frameworks at launch: React, Vue, Angular, Solid, and Lit, as well as a myriad of features for each specific framework.

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10 Things To Avoid in Domain-Driven Design (DDD)

DDD is an important strategic approach to software development. In this article, explore 10 things to avoid in DDD and examples to illustrate these pitfalls. Domain-Driven Design (DDD) is an important strategic approach to software development.

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Variants of LoRA

Want to train a specialized LLM on your own data? The easiest way to do this is with low rank adaptation (LoRA), but many variants of LoRA exist. There are many variants of LoRA you can use to train a specialized LLM on your own data.

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Truth, Lies and Progress Bars

Very early in my career, I found myself on a design team tasked with improving some legacy security software. At one point, we were evaluating a setup screen that included a progress bar. I asked a member of the engineering team, “How is progress calculated?”

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Building WebSites With LLMS

I recently shipped some updates to my blog. Through the design/development process, I had some insights which made me question my knee-jerk reaction to building pieces of a page as JS-powered interactions on top of the existing document.

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Avoiding Server Component Waterfall Fetching with React 19 cache()

The cache() API is a new feature released in React 19. In this blog post, we will explore it in the Next.js App Router, and see how it can be used to reduce data coupling and preload data, optimizing performance and avoiding waterfall fetching when using React Server Components.

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