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React `startTransition` Without `useTransition`: The Standalone API Teams Keep Overlooking in Concurrent Mode
47+ min ago (174+ words) React startTransition Without useTransition: The Standalone API Teams Keep Overlooking in... Tagged with javascript, react, webdev, node....
The Illusion of String.length: How to safely count Unicode, Emojis, and Words in JS
1+ hour, 50+ min ago (173+ words) If you are building a text input that restricts users to a specific character limit (like a tweet, an SMS gateway, or an SEO meta tag), your first instinct is probably to use String.prototype.length. If you are doing…...
Make Fully Customizable QR Codes (Actually)
1+ hour, 45+ min ago (28+ words) Tired of usual bland QR codes that don't show off your brand? I made a simple API to create fully... Tagged with python, api, backend, tools....
Three things that bit us moving a document scanner fully into the browser
2+ hour, 20+ min ago (596+ words) I work on LensUp, which does exactly that — the whole pipeline runs in the tab, and files are never uploaded. Disclosure up front: it's our tool, and this post is about the parts that were harder than the pipeline itself....
gh api --paginate --slurp --jq 'length' Counts Pages, Not Issues
2+ hour, 28+ min ago (415+ words) gh api --paginate --slurp --jq 'length' is the command everyone reaches for to count issues in a repository. It does not count issues. It counts pages. I found this while writing pagination recipes for a toolkit, and then found the…...
Stop Making Your React Components Reusable | React Design
3+ hour, 13+ min ago (502+ words) In the modern React ecosystem, "reusability" has been elevated from a best practice to a full-blown theology. We are taught from our first tutorial that DRY (Don't Repeat Yourself) is the ultimate virtue. If you write the same button twice,…...
Designing a deterministic browser-side photo analysis flow
3+ hour, 9+ min ago (196+ words) While building a small browser-based facial-proportion tool, I found that a few engineering choices matter more than adding another model. The pipeline starts with 478 detected facial landmarks and derives four displayed proportions: harmony, symmetry, eye area, and jawline. The important…...
I built a radio station with one listener, and it runs in a terminal
2+ hour, 44+ min ago (638+ words) The film above is 86 seconds, and the middle of it is a real on-air moment. There is a longer unedited recording at the top of the repo README. Watch either first, with the sound on. The rest of this post…...
Treating “one day” as a system primitive
3+ hour, 15+ min ago (165+ words) For most AI apps, the unit of time is a request. A user sends a message, the model responds, and the workflow ends. Cogweald is designed around a different primitive: one real day. Each world can advance by at most…...
Why Type Safety Matters More as a Codebase Grows
3+ hour, 15+ min ago (209+ words) When a project is small, type safety can feel like extra work. If you only have a few files and you wrote most of the code yourself, it is often easy to remember what each function expects and what each…...