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JavaScript, TypeScript & Node
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I turned a real OpenAPI into an MCP server in 5 min (without losing custom code on regen)
22+ min ago (145+ words) I built an OpenAPI to MCP server generator for TypeScript, Python and Go. The v1 mistake: 1 endpoint = 1 tool. On a real API with 200 operations, you get a 200-tool server. Nobody can use that. That was the exact feedback I got on…...
Why I Built ASOShot: A Free App Store Screenshot Editor
22+ min ago (502+ words) Preparing store screenshots should be a short release task. In practice, it often turns into a small design project: find the current export sizes, place several captures in consistent frames, keep text readable, repeat the work for every locale, and…...
Stopping Broken Inputs Early in Excel Automation: Python XLSX Inspection and Negative Testing｜node
16+ hour, 41+ min ago (61+ words) # Stopping Broken Inputs Early in Excel Automation: Python XLSX Inspection and Negative Testing What is scary about Excel automation is not just that the process might crash halfway through. It is treating a broken file as "successfully processed" and passing…...
CSS Box Model
47+ min ago (19+ words) The CSS Box Model describes how every HTML element is treated as a rectangular box.... Tagged with css, webdev....
A model doesn't read text: what a tokenizer decides for you
53+ min ago (1022+ words) Originally published at cchinchilla.dev. Part 1 of From code to weights, a 12-part series on ML fundamentals for engineers. A language model has never seen a letter. It sees integers. Somewhere between your string and the first matrix multiply there's…...
Why We Moved 100% of Our Web Tools Client-Side (And Saved 95% Server Costs)
1+ hour, 34+ min ago (300+ words) When building utility web apps—like PDF invoice makers, JSON formatters, image compressors, or QR code generators—the standard architecture taught in most tutorials is simple: While this pattern works, it creates three massive problems as traffic scales: expensive cloud…...
Encrypted file storage, share links you actually set the rules on, or go P2P
1+ hour, 18+ min ago (181+ words) Turn on encryption and your upload is scrambled client-side with AES-256-GCM before it leaves your browser. The key is generated server-side once, emailed to you, and never stored after that — lose the email and the files are gone too....
A Successful Response Can Still Belong to the Wrong Screen
1+ hour, 38+ min ago (340+ words) A trading dashboard requests an instrument preview. Before the response arrives, the user selects another instrument. Both requests succeed. The older one finishes last and replaces the newer view. Nothing failed at the transport layer. The bug is accepting a…...
Web Programming in C++ with WFC
1+ hour, 36+ min ago (654+ words) C++ is one of the most powerful and widely used programming languages in the world. It is well known... Tagged with cpp, httplib, tutorial, webformscore....
Post-Mortem: Surviving AI-Generated Playwright Tests in Production
2+ hour, 12+ min ago (891+ words) The objective was to accelerate the creation of regression tests for a complex SaaS dashboard. The baseline was a legacy Cypress suite that was slow, flaky, and difficult to read. The team integrated a workflow where product managers and developers…...