379 points, 139 comments on Hacker News
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Less Typing, More Work
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OpenAI + Vercel Makes the Architecture Even More Interesting
On September 10, 2026, Vercel announced integration for building and deploying OpenAI Agents API applications. OpenAI manages the agent loop and session state, while Vercel connects each session to Vercel Sandbox for isolated code execution and persistent workspaces. Vercel also describes a sca...
Understanding the European Cyber Resilience Act (CRA)
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We doubled Mercado Libre's scraper memory and clearance went from 50% to 90% - with zero code changes.
Quick answer Mercado Libre retired anonymous access to its public search API — api. mercadolibre. com/sites/{MLA,MLM}/search comes back a flat 403 forbidden on every proxy tier we tested, datacenter and residential alike — so a JSON-based Mercado Libre scraper simply doesn't exist anymore.
I Built My Own AI Copilot for Excel Desktop — Without Paying for Microsoft 365 Copilot
I use Excel a lot. And like many Excel users, I eventually wanted something more powerful than formulas, VBA, and endless clicking. I wanted to be able to say: «"Clean this data.
Kleinanzeigen has two page-2 URLs. One is a redirect trap. We verified the one we shipped actually advances.
Quick answer eBay Kleinanzeigen's search pagination has two different URL shapes, and only one of them is safe to string-template. The keyword-search shape this Actor builds on — /s-{slug}/k0 for page 1, /s-seite:{N}/{slug}/k0 for page N — held up under a real test: three consecutive pages of fa...