54+ min ago   (490+ words) If you're using TanStack Query with native fetch, your query functions may look like this: There's nothing wrong with this. But as the application grows, the HTTP layer usually becomes responsible for much more: This is the problem I wanted…...

1+ hour, 15+ min ago   (821+ words) If you've ever been curious about how encryption works at a basic level, the Caesar Cipher is a great place to start. It is one of the simplest classical encryption techniques. The idea is straightforward: shift each letter in a…...

1+ hour, 24+ min ago   (1367+ words) Choosing a stack is a product decision before it is a technical one. This article documents why this portfolio runs on Bun, Astro, and MDX — and, more importantly, the reasoning that led me to turn down more sophisticated alternatives. Nothing…...

1+ hour, 24+ min ago   (682+ words) Most signup tests die at the same line. The form submits, the app renders "check your email", and the test has nowhere to go. You can assert the confirmation screen appeared, but everything after it — the code entry, the activated…...

1+ hour, 24+ min ago   (169+ words) A sequential integer primary key is a great internal identifier: compact, fast to index, naturally ordered. It is a poor external one, for three reasons: The fix is to stop making one column serve two audiences: Every lookup still has…...

1+ hour, 29+ min ago   (1080+ words) Webhooks are one of the easiest ways to connect different tools with Make.com. They are also one of the easiest places for an automation workflow to break. A webhook may receive incomplete data. A field may have a different…...

2+ hour, 5+ min ago   (451+ words) We build [HaramLite](https://haramlite.com), a desktop app that removes music and instrumentals from video and audio on the user's own machine — no uploads, no accounts, no cloud. This is the story of a sync bug in its browser side, because…...

2+ hour, 30+ min ago   (441+ words) Kitset is a PHP-rendered directory that currently exposes 423 small browser tools. The interesting engineering problem was not adding one more calculator. It was deciding, for every tool, which work belongs on the server, which work belongs in the browser, and…...

2+ hour, 27+ min ago   (420+ words) This is the condensed walkthrough; the full guide (estimates, API, data model, and the full production.NET 9 code) is on my site 👇 The two sides scale very differently: Storage and transcode compute dominate the write side; the CDN is not…...

2+ hour, 23+ min ago   (262+ words) Paste a JWT into a "free online JWT debugger." Paste a config file into a "free JSON formatter." Then open DevTools, hit the Network tab, and watch it POST your payload to api.something-saas.com/v1/parse. Most of them weren't…...