Perplexity is using stealth, undeclared crawlers to evade no-crawl directives

I built the world&#x27;s most impractical 1000-pixel display and anyone in the world can draw on it. It draws a single pixel at a time and takes 30-60 minutes to complete a single image. Anyone can participate in the project by voting for the next image to be drawn, and submitting images.<a href="https:&#x2F;&#x2F;kilopx.com&#x2F;" rel="nofollow">https:&#x2F;&#x2F;kilopx.com&#x2F;</a>

Show HN: I spent 6 years building a ridiculous wooden pixel display

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Related: Show HN: Draw a fish and watch it swim with the others - <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44719222">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=44719222</a> - July 2025 (233 comments)

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Show HN: I've been building an ERP for manufacturing for the last 3 years

I tried to replace myself with ChatGPT in my English class

Every week for the last 3 months I’ve learned a new trick when it comes to getting whatever LLM I’m using at the time to produce better output. That’s my trade, but lots of HNers have more interesting trades than that.In my case, only recently I learned the value of getting an LLM to write and refine a plan.md architecture doc first, and for it to break that doc down into testable phases, and then to implement phase by phase.Seems obvious in hindsight. But it took too long to learn that that should be my approach. I had been going phase by phase myself- no overarching plan.md for the LLM.What Trick of the Trade took you too long to learn?

Ask HN: What trick of the trade took you too long to learn?

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NASA's Curiosity picks up new skills

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Is the interstellar object 3I/ATLAS alien technology? [pdf]

Hiroshima (1946)