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Sergii Shcherbak

Sergii Shcherbak

@SergiiShcherbakMaker

Creator of 💎 ContextGem | Founder & CEO Shcherbak AI

LinkedIn
2
Launches
7
Upvotes received
4
Upvotes given
2
Comments

Launches

2 tools
  1. tetheredtethered · Your app's network firewall — in one function call.1
  2. ContextGemContextGem · Free, open-source LLM framework for easier, faster extraction of structured data and insights from documents6

Upvoted

4 tools
  1. Nextjs ToolsNextjs Tools · An Exclusive & Vetted list of the best Nextjs tools, software, templates.6
  2. Oxbow UIOxbow UI · Free and premium components, elements and layouts Beautifully crafted with Tailwind CSS5
  3. ContextGemContextGem · Free, open-source LLM framework for easier, faster extraction of structured data and insights from documents6
  4. +your ad here · $89/weekopen spot
  5. tetheredtethered · Your app's network firewall — in one function call.1

Comments

2 comments
  1. tethered

    Commented on tethered · Mar 2, 2026

    Hey community! I built tethered because Python has no built-in way to restrict outbound network access at runtime. One function call, zero dependencies — declare an allow list and any socket call outside it is blocked before a packet leaves the machine. Uses Python's audit hook system (PEP 578), no monkey-patching or proxies. Built it mainly for supply chain defense (compromised deps can't phone home), AI agent guardrails, and test isolation. Works with requests, httpx, aiohttp, Django, FastAPI — anything built on Python sockets. Fully open-source (MIT). Would love your feedback!

  2. ContextGem

    Commented on ContextGem · Apr 7, 2025

    ContextGem on GitHub: https://github.com/shcherbak-ai/contextgem ContextGem documentation: https://contextgem.dev/ Example pipeline for NDA data extraction (Google Colab): https://colab.research.google.com/drive/1jJhU05pv26v_G4Vj3Pg5-qlZfXxSEjPo?usp=sharing

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