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Sergii Kharagorggiiev

Personal blog · grgv.xyz/blog · on HN as coolvisionaiprogramming

Sergii Kharagorggiiev's personal blog at grgv.xyz covers ai and programming. Since 2021, 5 different Hacker News readers have linked it 31 times, most often “Show HN: JavaScript Program Synthesis”. It is still writing: the last post was on 2025-06-04, and you can follow it by feed.

Visit the blog
31mentions?
5HN people?
2021–2026first – last linked?
Links on Hacker News per year · peak 13 in 2023

The author on HN?

coolvision · 290 karma · member since 2010

I am a software engineer from Ukraine, currently living and working in Estonia. I mainly specialize in computer vison & robotics. https://grgv.xyz/

From their public HN profile, which links to this site.

Most-linked posts?

  1. Show HN: JavaScript Program Synthesis
    2 people · 4 mentions · first linked 2021-01-06
  2. Show HN: Walking controller for a browser-based robot dog simulator
    2 people · 3 mentions · first linked 2023-08-18
  3. Llama.MIA – fork of Llama.cpp with interpretability features
    2 people · 2 mentions · first linked 2023-12-30
  4. Browser-based robot dog simulator: walking controller
    2 people · 2 mentions · first linked 2023-10-15

What Hacker News says?

  1. I tried to make a robot simulator with rapier, with a mixed sucess: https://grgv.xyz/blog/simulator4/ The performance is great but realism of joints and motors is lacking, and not suitable realistic simulation.

    Comment linking /blog/simulator4/

    on “Rapier is a set of 2D and 3D physics engines written in Rust”
  2. Submitted Show HN: JavaScript Program Synthesis as a story · 139 points

    HN discussion
  3. I've worked a bit on inductive syntax-guided synthesis, but did it at the worst time -- right before it was made obsolete by LLMs: https://grgv.xyz/inductive_program_synthesis/

    Comment linking /inductive_program_synthesis/

    on “Program synthesis”
  4. Submitted I ignored my slowly worsening mental health, and got hit hard by OCD (a caution) as a story · 8 points

    HN discussion
  5. https://grgv.xyz/

    Comment linking /

    on “Ask HN: Could you share your personal website here?”
  6. Submitted I ignored my mental health, and got hit hard by OCD (a cautionary tale) as a story · 6 points

    HN discussion
  7. https://grgv.xyz/blog/

    Comment linking /blog/

    on “Ask HN: Could you share your personal blog here?”
  8. Submitted Llama.MIA – fork of Llama.cpp with interpretability features as a story · 5 points

    HN discussion
  9. unfortunately only gpt-4 worked well in my experience, smaller models would work well only for blocking simple things like "cat videos page", but not for anything else less trivial. I have another proof-of-concept where smaller model fails compared to gpt-4: https://grgv.xyz/blog/apc/

    Comment linking /blog/apc/

    on “Show HN: Autolicious – AI-powered bookmark cataloging Chrome extension”
  10. Submitted Show HN: Automatically Generating Algorithmic Art as a story · 5 points

    HN discussion
  11. hey we have similar ideas ) I made a focus helper thing as well: https://grgv.xyz/blog/awf/ webllm looks cool, but I would need to upgrade my laptop for it...

    Comment linking /blog/awf/

    on “Show HN: Autolicious – AI-powered bookmark cataloging Chrome extension”
  12. Submitted Llama.MIA – fork of Llama.cpp with interpretability features as a story · 4 points

    HN discussion
  13. Submitted Reflections on 2023 as a story · 3 points

    HN discussion
  14. Submitted Inductive Program Synthesis in JavaScript as a story · 3 points

    HN discussion
  15. Submitted Task vectors and analogy making in LLMs as a story · 2 points

    HN discussion
  16. Submitted Bird-eye view visualization of LLM activations as a story · 2 points

    HN discussion
  17. Submitted Creative Code Synthesis as a story · 2 points

    HN discussion
  18. Submitted Exploring vocabulary alignment of neurons in Llama-3.2-1B as a story · 1 points

    HN discussion
  19. Submitted Inductive Program Synthesis in JavaScript as a story · 1 points

    HN discussion
  20. Submitted Browser-based robot dog simulator: walking controller as a story · 1 points

    HN discussion
  21. Submitted Browser-based robot dog simulator: walking controller (2023) as a story · 1 points

    HN discussion
  22. Submitted Reverse engineering of LLM analogy-making as a story · 1 points

    HN discussion
  23. Submitted Browser-based simulator for Petoi Bittle robot dog as a story · 1 points

    HN discussion
  24. Submitted GPT-4 for personal productivity: online distraction blocker as a story · 1 points

    HN discussion
  25. Submitted Show HN: ChatGPT-based parental control browser extension as a story · 1 points

    HN discussion
  26. Submitted Show HN: Walking controller for a browser-based robot dog simulator as a story · 1 points

    HN discussion
  27. Submitted Procedural animation for controlling a (simulated) robot dog: first steps as a story · 1 points

    HN discussion
  28. Submitted Show HN: Browser-based robot dog simulator as a story · 1 points

    HN discussion
  29. Submitted Show HN: Browser-based robot simulator with Three.js and rapier.js as a story · 1 points

    HN discussion
  30. Submitted Program synthesis in JavaScript: benchmarking on a list processing dataset as a story · 1 points

    HN discussion

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