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 …
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Building BetLogic with Next.js: AI Football Previews, Bet Slip Checks and Automated Content
I’m building BetLogic, an AI-powered football intelligence platform focused on match previews, risk-aware predictions, transparent tracking and footba…
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…
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…
I Built a 4-Sided Plot Area Calculator with 2D & 3D Visualization
I Built a 4-Sided Plot Area Calculator with 2D & 3D Visualization Most online plot calculators only work for simple rectangular plots. However, ma…
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 …
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…
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…
T3 Stack Complete Guide 2026: Next.js 15, tRPC v11, Drizzle + Neon
The T3 Stack was created to solve one specific problem: full-stack TypeScript apps where the type safety falls apart at the API boundary. You define t…
Building a Context-Aware Onboarding System in Next.js
When I started building TourKit, I thought onboarding tours would be the easy part. Create a few tooltips, highlight some elements, and move users fro…
I built 73 free construction calculators with Next.js — and learned the hard way that Google won't index a new site just because it exists
Every construction calculator on the first page of Google has the same problem: you search "how much concrete do I need," land on the page, and before…
How I Built a Free SEO Audit Tool with Next.js, Supabase, and Stripe in 1 Week
Last weekend I started building SiteGrade — a free instant SEO audit tool that gives any website an A–F letter grade and the top fixes ranked by impac…
I Rebuilt My Abandoned Dashboard by Starting With Docs — Kumachi Back Office
This is a submission for the GitHub Finish-Up-A-Thon Challenge . What I Built Kumachi Back Office is the private operating system for my creative and …
How I built a calculator site with 13 languages and 5,500 static pages in Next.js 15
A few months back I got frustrated. I needed to calculate something — nothing crazy, just a loan payment — and every site I landed on either wanted me…
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…
From Native WordPress to Headless: The Real Engineering Decisions Behind a Production Migration
Every headless WordPress conversation starts the same way — someone draws an architecture diagram with arrows pointing from a REST API to a shiny Next…
Building a trilingual, multi-tenant hotel management SaaS for the Kurdistan Region
A few months ago I shipped tourism.krd — first-party hotel and motel management software built specifically for property owners in the Kurdistan Regio…
Qisquiz: A Quiz App for Learning Qiskit v2.X
Qisquiz: A Quiz App for Learning Qiskit v2.X I recently built Qisquiz , a quiz-based learning app for people studying Qiskit v2.X and preparing for th…
Integrating Webpay Plus into a modern stack
If you've ever worked on an e-commerce project in Chile, sooner or later you bump into Transbank. There's no avoiding it. I built a reference template…
Paddle Billing plus Next.js 16: The complete guide nobody wrote and the mistakes that cost me a week
If you've tried to integrate Paddle Billing with Next.js and hit confusing walls, this guide is for you. I spent an embarrassing amount of time gettin…
When a "Simple Refresh" Broke Our Production App: Next.js Static Export on Azure
We had one of those bugs that looked small from the outside, but exposed a much deeper architecture lesson. In our portal web application, top-level r…
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…
Visual regression testing for modern web apps: strategies, tooling, and a practical pipeline
Visual regression testing for modern web apps: strategies, tooling, and a practical pipeline Visual regression testing for modern web apps: strategies…
I Built a Live UK Electricity Price Dashboard. Here's What Went Wrong (and Right)
I'm on Agile Octopus, where electricity prices change every 30 minutes. Every evening I'd open the Octopus app trying to figure out when to run the di…
Building KindaSeen with FastAPI, Next.js, and PostgreSQL
“Did We Already Watch This?” — Building KindaSeen with FastAPI and Next.js A few months ago, my friends and I kept running into the same question when…
How I Built an AI Billing Firewall for OpenRouter and Supabase
AI Aggregator platforms face a common problem: unexpected API costs. A spam attack, bad prompt loop, or runaway agent can generate hundreds of dollars…
How I bypassed Vercel Serverless timeouts to build a decoupled document ingestion pipeline
If you’ve ever tried to build an asynchronous document processing or RAG pipeline using Next.js API routes hosted on Vercel, you know that even with m…
I'm 15, Built My First Real Project in 4 Days, and Put It on Gumroad
I'm 15 and Built an AI Energy Dashboard with Next.js 15 + Groq Hey Dev.to! 👋 I'm a 15-year-old student developer from South Korea. I just finished my …
5 walls I hit shipping an AI reading app from West Africa (and what I'd tell past-me)
I'm a maxillofacial surgeon in Ouagadougou, Burkina Faso — and a self-taught builder who's been coding since medical school. Over evenings and weekend…