Five languages, and a page that admits it's mixed
I ship a release tracker called Verdict. It watches 37 technologies, and for every release that matters it writes a summary with an explicit verdict…
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WordPress to Next.js migration SEO: keep your traffic through the move
If you are planning a WordPress to Next.js migration and your main fear is losing the organic traffic you spent years earning, that fear is reasonab…
Our Sentry config sets one option the SDK has deleted and two more under a key whose own type says it has no effect
CogniPrep's next.config.mjs ends with this: export default withSentryConfig ( configWithAnalyzer , { org : ' pertu-works ' , project : ' cogniprep '…
Three font files preload on every page of our site, and on five of the six I measured one of them has nothing to render
CogniPrep's root layout loads three font families, from two different mechanisms: import { GeistSans } from ' geist/font/sans ' ; import { GeistMono…
LaunchDarkly Alternative API for Node.js AI Tutor Feature Flag Rollouts
TL;DR: For an AI tutor in Node.js or Next.js, use a small API-driven flag service when the job is a release toggle, a kill switch, or a percentage r…
Lessons from Building a Product Launch Platform with Next.js and Prisma
I've been working on PeekLaunch , a weekly launch board where makers submit a SaaS or AI tool, it goes live on that week's board, and other builders…
How I Built a GSC Diagnostic Micro-SaaS with Next.js and Vercel in a Weekend
Hey Devs, As an indie hacker, I got tired of manually digging through Google Search Console every week to find "striking distance" keywords (ranking…
Our only GitHub Actions workflow is a database backup, and 7,715 tests run on one laptop
CogniPrep is 1,074 commits old, 617 of them in the last 30 days. It has 353 test files and 7,715 unit tests that run in 26 seconds. .github/workflow…
White label Next.js developer for agencies: how it works
If you run an agency and your designers and strategists are selling headless builds faster than your team can ship them, a white label Next.js devel…
Our PDF download only failed in production, and the reason was one CSP token we never needed in dev
CogniPrep generates PDF reports with @react-pdf/renderer . I have written before about where those documents are allowed to break across pages and a…
Two URL spaces render from one type, and the ternary that tells them apart returns the same thing twice
The long form pages on notifio.app live in two URL spaces. /guides is for someone describing a task, like how fast rental listings go . /for/ is for…
The website can't promise a price the app won't charge
Yesterday was the panel the people running ParkEase use. Today is the page everyone else sees first. A driver searching "parking near Indiranagar" d…
From 0 to 17,000 users: A meaningful guide to scale small apps keeping infrastructure costs low
Whether you're a vibe coder or a software engineer, you may have run into the same problem: your app starts getting users, and the monthly bills bec…
A union of 52 route strings we never wrote, and three of our seven layouts all claim the same one
There is a file in Nakodo that nobody on the project has ever edited, that is not in git, and that 36 source files depend on at compile time. It is…
A school discount with no code, because the discount is the email domain
We used to give schools a discount code. A teacher asked for one, we minted it, and then we maintained the parts that follow from a code existing: a…
Ledger Room: I built a local invoice sorter, then measured exactly what the privacy costs
This is a submission for the Hacktoberfest Open-Source AI Challenge Week 2: Side Hustle What I Built Ledger turns a folder of invoices and receipts…
cutting N+1 queries in Next.js API routes with Supabase RPC
when a dashboard starts pulling relational data from Supabase, the naive approach is to fire a separate select per row. the result is a classic N+1…
Our marketing pages never read your session, so the header guesses from a cookie with useSyncExternalStore
Fetch the Nakodo home page with curl and the header offers you "Sign in" and "Start free". Open the same URL in a browser where you are signed in an…
We stopped asking Supabase who you are on every request, and the only thing that got worse is revocation
Munchable's marketing site and its 373 generated answer pages are statically rendered, and they still run a function on every request, because the h…
PostHog's endpoints end in a slash and Next.js strips trailing slashes, so our analytics path is a negative lookahead
Here is a two line experiment you can run right now. Both of these are reverse proxies in front of PostHog, on two sites built by the same person, i…
Oxlint vs Biome vs ESLint in 2026: Benchmarked on a Real Next.js Codebase
I ran ESLint 9 and 10, Oxlint 1.88 and Biome 2.5 on my own site's Next.js code (403 files) and measured speed, memory and what each migration keeps…
TuitionSetu: a tutor's Sunday of WhatsApp updates, written by Gemma on her own laptop
This is a submission for the Hacktoberfest Open-Source AI Challenge: Week 2, Side Hustle . What I Built Mita teaches Maths to 30 children from home.…
Using Vercel KV for a Simple Blog CMS — What I Learned After 100 Posts
Using Vercel KV for a Simple Blog CMS — What I Learned After 100 Posts I built a simple blog CMS on top of Vercel KV for my utility site. After publ…
8% of My Capterra Reviews Arrived as the Three Characters $62
I run a visa agency in Bali. The half of my week that is not visas goes into Apify Actors, and one of them reads B2B software reviews — Capterra, So…
when tRPC beats REST for fine‑grained data fetching in Next.js
in a midsize SaaS product we hit a scaling wall when dozens of React components started querying overlapping slices of a user record. each component…
How do I add x402 payments to an Express / Next.js API?
Quick answer: on Express, wrap routes with paymentMiddleware from @x402/express . On Next.js, use paymentProxy for page routes (or many routes at on…
I scanned 8 popular SaaS starter templates. 7 had launch-blocking patterns hiding in plain sight.
Most AI-built SaaS apps don't start from a blank file. They start from a starter template — clone, rename, add features, ship. So I ran a local laun…
The Math Behind Weighted Grades, in Next.js
I built a free grade calculator with Next.js, and the part that surprised me most was how little of it is framework code. Nearly all of the logic is…
Your rebuild will drop URLs. Google will tell you in six weeks.
A rebuild changes how pages are made. The old addresses stop existing without anyone deciding they should, and Google notices before you do. Here is…
Deploy a Next.js App Router App to Cloudflare Workers with OpenNext and a D1 Database
For a long time the honest answer to "can I run a full Next.js App Router app on Cloudflare Workers" was "sort of, with caveats." That changed with…