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Netflix's web architecture reverse-engineered from live network traffic -- 18 named internal systems (Akira, Cadmium, Shakti, Pinot, MSL, FTL, Ichnaea...), dual API migration (Falcor → GraphQL), video streaming pipeline, DRM flow, search capability negotiation, and the full content data model. All from 177 captured requests.
Netflix System Design: A Grounded Teardown
A reverse-engineered system design of Netflix's web application, built entirely from live network traffic analysis of the authenticated browse experience. 177 requests captured, every API contract inspected, every subsystem named.
pr-artifact — attach images & videos to a pull request without committing binaries
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Explaining Python's hash() function and __hash__ magic method
Python's hash()
Authors's Note
This is an outline of how I'd explain hash to a novice programmer. I've given versions of this explanation hundreds of times to thousands of students, beginners and experts alike.
Students tell me they find it compelling because it helps them connect w/ what's really going on by emphasizing both the technical and human/design elements.
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VPN IP Addresses (IP адреса ChatGPT, Copilot, Meta, Facebook, Instagram, YouTube, Medium, X ex. Twitter, Discord)
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A pattern for building personal knowledge bases using LLMs.
This is an idea file, it is designed to be copy pasted to your own LLM Agent (e.g. OpenAI Codex, Claude Code, OpenCode / Pi, or etc.). Its goal is to communicate the high level idea, but your agent will build out the specifics in collaboration with you.
The core idea
Most people's experience with LLMs and documents looks like RAG: you upload a collection of files, the LLM retrieves relevant chunks at query time, and generates an answer. This works, but the LLM is rediscovering knowledge from scratch on every question. There's no accumulation. Ask a subtle question that requires synthesizing five documents, and the LLM has to find and piece together the relevant fragments every time. Nothing is built up. NotebookLM, ChatGPT file uploads, and most RAG systems work this way.