How to write a project brief that actually helps you hire a Next.js developer
Writing a good brief before you hire a Next.js developer is the single thing that separates projects that land on time from ones that drift for months…
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The worked example that disagreed with its own calculator
I run a small site of home-improvement cost calculators ( costto.build ) — pick a project, get a low / average / high estimate with a materials-and-la…
How I Built and Deployed 288 Client-Side Calculators in 3 Weeks 🚀
Hey Dev.to community! Over the last 3 weeks, I’ve been working on a massive product sprint: building a completely local-first web directory called Cal…
How We Migrated a Client from WordPress to a Custom Next.js Storefront
Last year, a client came to Paradane with a WordPress/WooCommerce store that was buckling under growth. Page loads were hitting 6 seconds, the checkou…
Setting up Supabase Auth with Next.js in 10 minutes
Every time I started a new project, auth killed my momentum. Setting up JWT, hashing passwords, managing sessions, handling refresh tokens... before w…
How I Built the Two Missing Payload CMS v3 Plugins — Reviews, JSON-LD & Real Production Bugs
Running 23 European e-commerce shops on Payload CMS v3 taught me that some things simply don't exist yet. So I built them. Background I maintain a mul…
I'm Building an Infinite Full-Stack Assembly Line (And Why the Boilerplate Market is Dead)
Every developer knows the absolute worst part of starting a new software project.It isn't writing the features, designing the UI, or talking to users.…
I tried "GEO" on my indie tool — it was just SEO (here's the GSC data)
Every other newsletter this year told me my SaaS needed GEO — Generative Engine Optimization. Write an llms.txt . Add "AI-only" schema. Chunk your con…
React 19 Hydration Mismatch in Static Export
📚 This is Part 3 of the UtlKit Tech Series — Part 2 covers the architecture & trade-offs → Read Part 2 React 19 Static Export Hydration Mismatch? …
I built Reclaim: an AI tool that finds medical billing errors and writes your appeal letters
Americans owe $220 billion in medical debt, and 80% of medical bills contain errors — duplicate charges, upcoded procedures, unbundling, wrongful deni…
The Next.js Data Cache Error That Broke My Production App (And How I Fixed It)
The Next.js Data Cache Error That Broke My Production App (And How I Fixed It) A real bug from building Flacron Gamezone — a live football platform bu…
How I built an automated SBOM scanner to secure my supply chain 🛡️
Supply chain security is terrifying right now. With new vulnerabilities popping up daily and governments mandating compliance (like the EU CRA and US …
Generating valid .ics calendar feeds at build time
A few weeks ago I shipped a feature I'd been putting off because it felt like it needed a backend: subscribable calendar feeds. "Add this holiday to G…
Interview Tree: Turning User Interview Transcripts into Structured Opportunity Trees with Claude
I built Interview Tree because synthesizing user interview transcripts by hand is slow and error-prone. Reading through long conversations to find rec…
Building a Production-Ready E-Commerce Platform with Next.js
Most e-commerce tutorials stop after implementing a product page, shopping cart, and checkout process. Real-world e-commerce platforms are much more c…
One SSE stream, seven LLM providers: giving a Next.js app a single streaming code path
How I made OpenAI, Claude, Gemini, Ollama, Mistral, Groq and Azure look identical to the browser — with no database, no backend secrets, and the user'…
How I built a flash-sale engine that can't oversell
I created this piece of content for the purpose of entering the H0: Hack the Zero Stack hackathon. #H0Hackathon The problem (that's harder than it sou…
How I Built a 24 Game Solver: Brute-Force Meets Elegance in TypeScript
The 24 Game is deceptively simple: given four numbers, combine them with + , - , × , ÷ to make exactly 24. Sounds easy, right? Try solving 1, 5, 5, 5 …
Portable: A Financial Platform for Gig Workers (HackNomics 2025)
What it is Portable is a financial platform I built for HackNomics 2025, aimed at the 70 million Americans working in the gig economy. The core idea: …
Playbooks: a community feed where Claude builds structured plans for life's biggest moments
I built Playbooks because I kept running into the same problem: Notion is too blank, and ChatGPT gives you walls of text. Neither gives you a structur…
I Built an AI Symptom Tracker That Generates Doctor-Ready Reports
What It Is AI Wellness Journal is a symptom tracking app built with Next.js, Supabase, and Google Gemini. You log daily symptoms with severity ratings…
Mutuals: a taste-based social discovery app built with Next.js and Claude
What it is Mutuals is a social discovery app. You tell it 8–10 things you love — bands, films, books, games, places — and it matches you with people w…
Next.js + Supabase Performance Optimization: From Slow to Lightning Fast
Next.js + Supabase Performance Optimization: From Slow to Lightning Fast Last month, I optimized a Next.js + Supabase application that was frustrating…
Building a Movie Platform with Next.js and TMDB API
As part of my journey toward becoming a better full-stack developer, I wanted to build something that would help me deepen my understanding of Next.js…
Building a Movie Platform with Next.js and TMDB API
As part of my journey toward becoming a better full-stack developer, I wanted to build something that would help me deepen my understanding of Next.js…
How I Built a Property Matching System Using Euclidean Distance
Most accommodation platforms sort by price and star ratings. When I started building Voyera , a ski accommodation platform for Niseko, Japan, I wanted…
Scarab Diagnostic Field Test #026 — Next.js Turbopack Denied-Path Watcher Boundary
Target: vercel/next.js Issue: vercel/next.js#81161 PR: vercel/next.js#94735 Field Lab: https://github.com/scarab-systems/scarab-field-lab This field t…
The Weekend I Finally Finished 17 Projects
You know that feeling when you open a folder you haven't touched in months and find... yourself? Not metaphorically. I mean literally — old projects y…
Optimistic UI Patterns with Next.js Server Actions and Supabase Realtime
Optimistic UI Patterns with Next.js Server Actions and Supabase Realtime The difference between an app that feels fast and one that feels slow often i…
Next.js 14: 'Could not find the module in the React Client Manifest' — The Real Cause Nobody Tells You
The Dreaded 'Could not find the module in the React Client Manifest' Error It started, as these things often do, with a failed deployment. I was pushi…