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Show HN: Hover – IDE style hover documentation on any webpage 9 by sampsonj | 1 comments on Hacker News. I thought it would be interesting to have ID style hover docs outside the IDE. Hover is a Chrome extension that gives you IDE style hover tooltips on any webpage: documentation sites, ChatGPT, Claude, etc. How it works: - When a code block comes into view, the extension detects tokens and sends the code to an LLM (via OpenRouter or custom endpoint) - The LLM generates documentation for tokens worth documenting, which gets cached - On hover, the cached documentation is displayed instantly A few things I wanted to get right: - Website permissions are granular and use Chrome's permission system, so the extension only runs where you allow it - Custom endpoints let you skip OpenRouter entirely – if you're at a company with its own infra, you can point it at AWS Bedrock, Google AI Studio, or whatever you have Built with TypeScript, Vite, and the Chrome extension APIs. Coming to...

Stop Forwarding Errors, Start Designing Them 5 by andylokandy | 2 comments on Hacker News.

I charged $18k for a Static HTML Page (2019) 48 by caminanteblanco | 13 comments on Hacker News.

Xr0 verifier, guarantee the safety of C programs at compile time 4 by Alifatisk | 0 comments on Hacker News.

Microsoft kills official way to activate Windows 11/10 without internet 31 by taubek | 9 comments on Hacker News.

Show HN: FP-pack – Functional pipelines in TypeScript without monads 3 by superlucky84 | 1 comments on Hacker News. Hi HN, I built fp-pack, a small TypeScript functional utility library focused on pipe-first composition. The goal is to keep pipelines simple and readable, while still supporting early exits and side effects — without introducing monads like Option or Either. Most code uses plain pipe/pipeAsync. For the few cases that need early termination, fp-pack provides a SideEffect-based pipeline that short-circuits safely. I also wrote an “AI agent skills” document to help LLMs generate consistent fp-pack-style code. Feedback, criticism, or questions are very welcome.