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World Emulation via Neural Network (Score: 150+ in 10 hours)

Link: https://readhacker.news/s/6tqsF
Comments: https://readhacker.news/c/6tqsF
Show HN: Magnitude – open-source, AI-native test framework for web apps (Score: 150+ in 15 hours)

Link: https://readhacker.news/s/6tpzv
Comments: https://readhacker.news/c/6tpzv

Hey HN, Anders and Tom here - we’ve been building an end-to-end testing framework powered by visual LLM agents to replace traditional web testing.
We know there's a lot of noise about different browser agents. If you've tried any of them, you know they're slow, expensive, and inconsistent. That's why we built an agent specifically for running test cases and optimized it just for that:
- Pure vision instead of error prone "set-of-marks" system (the colorful boxes you see in browser-use for example)
- Use tiny VLM (Moondream) instead of OpenAI/Anthropic computer use for dramatically faster and cheaper execution
- Use two agents: one for planning and adapting test cases and one for executing them quickly and consistently.
The idea is the planner builds up a general plan which the executor runs. We can save this plan and re-run it with only the executor for quick, cheap, and consistent runs. When something goes wrong, it can kick back out to the planner agent and re-adjust the test.
It’s completely open source. Would love to have more people try it out and tell us how we can make it great.
Repo: https://github.com/magnitudedev/magnitude
Berkeley Humanoid Lite – Open-source robot (Score: 150+ in 9 hours)

Link: https://readhacker.news/s/6tqQU
Comments: https://readhacker.news/c/6tqQU
Mark Zuckerberg personally lost the Facebook antitrust case (🔥 Score: 150+ in 1 hour)

Link: https://readhacker.news/s/6trDt
Comments: https://readhacker.news/c/6trDt
Show HN: Formalizing Principia Mathematica using Lean (Score: 150+ in 18 hours)

Link: https://readhacker.news/s/6tpXS
Comments: https://readhacker.news/c/6tpXS

This project aims to formalize the first volume of Prof. Bertrand Russell’s Principia Mathematica using the Lean theorem prover. Throughout the formalization, I tried to rigorously follow Prof. Russell’s proof, with no or little added statements from my side, which were only necessary for the formalization but not the logical argument. Should you notice any inaccuracy (even if it does not necessarily falsify the proof), please let me know as I would like to proceed with the same spirit of rigour. Before starting this project, I had already found Prof. Elkind’s formalization of the Principia using Rocq (formerly Coq), which is much mature work than this one. However, I still thought it would be fun to do it using Lean4.
https://ndrwnaguib.com/principia/
https://github.com/ndrwnaguib/principia
An end to all this prostate trouble? (Score: 152+ in 4 hours)

Link: https://readhacker.news/s/6trsU
Comments: https://readhacker.news/c/6trsU
Parallel ./configure (Score: 152+ in 16 hours)

Link: https://readhacker.news/s/6tqE6
Comments: https://readhacker.news/c/6tqE6
Show HN: My self-written hobby OS is finally running on my vintage IBM ThinkPad (Score: 154+ in 5 hours)

Link: https://readhacker.news/s/6trR6
Comments: https://readhacker.news/c/6trR6

Finally got my hobby OS up and running on real hardware. I love the old IBM thinkpads, so thought it was the perfect machine to get it working on. Been working on it for quite some time now, but this has been a big milestone!