How I built a mind map that's just a Markdown list (and why that makes AI streaming almost free)
Most mind map tools store their data in a proprietary binary blob or lock you into a WYSIWYG editor. When I started Open MindMap , a React component, …
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The Jedi's Guide to Scaling Node.js APIs with Express: From Padawan to Master
The Quest Begins (The "Why") Honestly, I still remember the first time I tried to ship a production‑ready Express API. It felt like I was Luke Skywalk…
Stop Fighting React Native File Systems: Meet rn-file-toolkit
If you've built React Native apps for long enough, you've probably fought with file downloads, uploads, and filesystem management. Historically, the c…
I open-sourced the financial charting library we use in production
If you've ever tried to build a trading dashboard, a crypto portfolio tracker, or any financial app, you probably ran into the "charting problem" pret…
React 19 Concurrent Rendering Deep Dive: Actions, Transitions, and Suspense in Production
React 19 Concurrent Rendering Deep Dive: Actions, Transitions, and Suspense in Production Most React performance issues stem from treating async opera…
I built a free AI nutrition tracker as a solo dev — here's what I learned
What I built goNutriTrack is a free multilingual PWA nutrition tracker. The idea was simple: make meal logging so fast that people actually stick with…
Single-page Claude writes beautifully. At 5 pages it drifts. Here's the harness I built.
TL;DR I gave Claude / Codex a Figma file + a PRD and asked for 5-10 React pages of a working app. Single-page output is great. Multi-page output drift…
How we built a medicine-substitution engine that refuses to be clever
How we built a medicine-substitution engine that refuses to be clever There is a category of bugs where the code looks perfectly correct in code revie…
Building the Frontend of POS Lite with React, Next.js and Material UI
Introduction In the previous posts, I shared an overview of POS Lite and how I designed the backend using Spring Boot, JWT authentication, PostgreSQL …
I Built a PDF Toolbox That Never Uploads Your Files — Here's How
Every "free online PDF tool" uploads your files to a server. I built one that doesn't — and here's the technical breakdown. The Privacy Problem Try th…
Automate Your Healthcare: Building an AI Agent to Book Doctor Appointments and Archive Lab Reports
We've all been there: staring at a clunky, 10-year-old hospital web portal, clicking through endless nested menus just to book a simple check-up or do…
I built a real-time Air Quality Index monitor from scratch — AtmoPulse 🌍
Hey everyone! I'm a fullstack development learner and I just finished building one of my most ambitious projects entirely from scratch — no templates,…
How We Cut Magento Checkout Drop-off by 34% with a React Frontend
When a Magento store feels slow, merchants usually notice it first on the homepage. When revenue actually slips, we usually find the damage deeper in …
Why We Rebuilt Our Magento Checkout with React: Performance Results
Magento's default Luma checkout loads a heavy Knockout.js stack, dozens of RequireJS modules, and payment iframes that fight for the main thread. For …
How I Replaced 4 Heavy WooCommerce Plugins with a 15KB Vanilla JS Solution 🚀
If you've ever built or managed a WooCommerce store, you know the drill. The client wants to increase sales, so what do we do? We install a Side Cart …
We Built NeuralDrive — an AI-Powered Emergency Routing System on AWS in One Day — Top 10 at One With AI Hackathon
Hey Dev community! 👋 Our 4-person team just made it to the Top 10 of the One With AI Hackathon by Arthurite Integrated x AWS. Here's our quick stack: …
Add drawing tools, indicators and replay to Lightweight Charts without stitching six repos together
TradingView's Lightweight Charts is excellent at one thing: rendering financial data fast on a canvas. But the moment you try to build an actual tradi…
From Scratch: How to Integrate Reasonix CLI into the HagiCode System
From Scratch: How to Integrate Reasonix CLI into the HagiCode System This article shares the complete technical practice of integrating Reasonix CLI a…
Introducing React Motion Gallery
React Motion Gallery is a collection of primitives for complex layouts, modals, pointer/touch events, motion and data patterns – a library engineered …
Clean Architecture on the Frontend: Beyond Smart and Dumb Components
For a long time, frontend architecture meant one thing to me: split components into smart and dumb. Smart components fetch data, hold state, call muta…
Add an onboarding tour to any React/Next.js app in 5 minutes
Add an onboarding tour to any React/Next.js app in 5 minutes Most apps have zero onboarding. Users land on your dashboard, look around confused, and l…
ZeroPNG - From a single image compressor to 12 browser-native tools
When I built ZeroPNG , it was one tool: compress an image. Drop it in, get a smaller file. That was it. Over the past few months, I kept adding "just …
Adding live cross-tab sync to React state in one line (BroadcastChannel, no server)
Most "real-time" features start with the same assumption: you need a server. A WebSocket, a Redis pub/sub, a hosted service. But a huge category of re…
This Week In React #284 : TanStack Start, Compiler, React Router | App.js, Gesture Handler, SPM, Expo | npm, Node.js, Astro
Hi everyone, Kacper and Filip from Software Mansion here. This week, TanStack Start is once again in the spotlight. The React Compiler in Rust is on i…
I built Img2Gen, a GPT Image 2 studio on Cloudflare Workers
I recently built Img2Gen , a focused web studio for GPT Image 2 generation. The idea was simple: I wanted something more practical than a single promp…
Building Class Tracker: A Student Productivity Web App
As a student, I realized that I & a few other friends of mine were constantly switching between notebooks, calendars, reminders, and random sticky…
How I Fixed Next.js Serialization Errors in Payload CMS v3 by Building a Custom Icon Picker
If you’ve recently migrated to Payload CMS v3 , you’re probably loving the deep integration with Next.js and the App Router. However, moving to a full…
A Practical Guide to Building a Developer-Focused Internal Metrics Dashboard
A Practical Guide to Building a Developer-Focused Internal Metrics Dashboard A Practical Guide to Building a Developer-Focused Internal Metrics Dashbo…
Premium micro-interactions in React 19 (without the jank)
There's a specific kind of bad animation I notice immediately: the count-up stat that stutters as it ticks, the progress bar that lags a frame behind …
My AI Tool Generated Garbage JSX. So I Grounded It in shadcn/ui and Finally Shipped It.
This is a submission for the GitHub Finish-Up-A-Thon Challenge. Paste a screenshot of any UI. Get back a real React component that actually runs, reus…