The Life of a Request — A Field Map of HTTP/3
A single GET has to cross 13 stages on top of UDP, four cryptographic levels and three streams before it can land a 200 OK. Wire formats, keys, timelines and source paths for QUIC, HTTP/3 and QPACK.
The Life of One JS Line — A Source-Level Field Map of QuickJS
How 70 000 lines of C turn one line of JS into [2,4,6]. A source-level walkthrough of QuickJS — lexer, bytecode, the 3000-line interpreter loop, refcount GC — with every step compared against V8 / JSC / SpiderMonkey / Hermes.
From Rust to SIMD — The Life of WebAssembly
11 lines of Rust convolution from cargo build have to cross seventeen stages, two tiers of JIT, and 4 GiB of linear memory before they can light up one SIMD-vectorised pixel on screen. Every byte, every IR form, every machine instruction, every W3C / IETF spec citation — fully unpacked.
Sediment of Pixels — A Codex of 50+ Image Formats
From 1985 BMP to 2026 neural codecs, from screen pixels to GPU memory, from medical CT to astronomical FITS — a hand-drawn codex of image formats. 50+ formats, 7 families, 67 chapters.
Bytecode to Pixels — A Field Map of Chromium's Rendering Pipeline
A stream of bytes from the network must cross 13 stages, 3 processes and 4 property trees before it can light a single pixel. Source paths, class hierarchies, algorithm skeletons and diagrams for every stage.
JavaScript at the Limit — V8 Internals and One Hot Function's Road to 10×
How to diagnose a slow piece of JS, locate its bottleneck, and rewrite it ten times faster using V8 internals as a guide. A 20-chapter methodology — one real px2rem function takes the trip from ~240ms to ~24ms / 1M iters, each cut mapping to a concrete V8 mechanism.
Measuring «Smoothness» — From FrameTime to Stutter
A discriminator language for the experience of lag. From FrameTime to Stutter — why high frame rates can still feel choppy, and what the machine sees the moment your eyes say it is stuttering.
How to Build a High-Performance Mini-Game Container — The Evolution & Tech Behind Helio
One year — from kickoff in 2023 to surpassing WebView in 2024. The complete engineering retrospective for a cross-app mini-game container, with 44 hand-built visualizations.
Claude 101: An Interactive Tour of Claude Code from the AI's Point of View
Claude 101 is an interactive learning site that uses 16 deep chapters, annotated real source code, and animated visualizations to teach you Claude Code's complete architecture — from the AI's first-person perspective.
Claude Code's Memory System, Explained
A deep dive into Claude Code's Memory system — its 5-layer architecture, 4 memory types, write/retrieve/delete flows, and the three-layer safety mechanism.
A Visual Guide to OpenHarness: Recreating Claude Code's Agent Architecture in 3% of the Code
OpenHarness is an open-source project from HKU's HKUDS group that recreates Claude Code's Agent Harness architecture in pure Python — 98% tool coverage in just 11,733 lines of code.
Understanding AI Coding Through Cybernetics
Cybernetics' feedback loop model maps perfectly onto the AI Coding workflow. From negative feedback loops to Plant complexity to the evolution of control strategies, this framework lets you rethink the nature of human-AI collaboration.