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Show HN: Esp32sim – Run ESP32 firmware in the browser (Score: 150+ in 16 hours)

Link: https://readhacker.news/s/77tHP
Comments: https://readhacker.news/c/77tHP

Hi HN,
I’ve been working on esp32sim, an open-source ESP32 emulator that runs in the browser.
The fun part of the demo is that there is no ESP32 involved — the firmware is executing in the emulator.
The goal is to make ESP32 software easier to experiment with, test and simulate without always needing physical hardware connected.
Source:
https://github.com/mikroverk/esp32sim
I made a short video showing it in action:
https://youtu.be/waoWFilTWEc
I’m particularly interested in feedback from embedded developers: what would an emulator like this need to support before you’d actually use it for development, testing or CI?
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Tell HN: Remember to migrate away from .name domain (❄️ Score: 150+ in 3 days)

Link: https://readhacker.news/c/77esK

If you have a third.level.name domain, it'll get permanently expunged next year. Have you successfully taken steps to migrate away? Did you move to a standard .com domain, or are you taking your chances with another .tld?
Personally, I'm stuck in Microsoft hell because Azure admin emails cannot be changed and support is both uncaring and powerless.
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DeepSeek search and fetch – $0.75 per 1000 successful requests (🔥 Score: 156+ in 2 hours)

Link: https://readhacker.news/s/77w4V
Comments: https://readhacker.news/c/77w4V
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Show HN: Sphinx – A hook that quizzes you on your AI's code before shipping (Score: 150+ in 7 hours)

Link: https://readhacker.news/s/77vSy
Comments: https://readhacker.news/c/77vSy

FOSS, Basically it plugs into your existing coding agent workflow and every time you push to prod it'll throw up a questionnaire that checks if you understand how the code you're pushing works.
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