Links — #systems

• Advanced Mac Substitute (Apr 26, 2026)
  An API-level reimplementation of 1980s-era Mac OS that runs classic Mac binaries on modern systems without emulation.
  #fun #systems
• I am building a cloud (Apr 26, 2026)
  David Crawshaw on why he's building a small, opinionated cloud — and what's missing from the existing offerings.
  #blogs #systems
• Email could have been X.400 times better (Apr 26, 2026)
  A history of X.400 — the formally-specified email standard SMTP defeated — and what we lost by shipping the simpler thing.
  #essays #systems #web
• Investigating split locks on x86-64 (Apr 26, 2026)
  Chester Lam measures the real-world cost of split locks — atomic ops that span cache lines — and the mitigations that hurt almost as much.
  #essays #systems
• Bypassing the kernel for 56ns cross-language IPC (Apr 26, 2026)
  Architecture notes for Tachyon, a shared-memory IPC primitive that skips the syscall boundary entirely to hit single-digit-microsecond latencies between processes.
  #systems
• USB cheat sheet (2022) (Apr 26, 2026)
  Fabien Sanglard's compact reference for USB — descriptors, transfer types, packet structure, all on one page.
  #compsci #systems
• USB for software developers (Apr 26, 2026)
  A practical introduction to writing userspace USB drivers — descriptors, transfers, endpoints, and what the kernel does on your behalf.
  #essays #systems
• watgo: a WebAssembly toolkit for Go (Apr 26, 2026)
  Eli Bendersky walks through a small Go-based toolkit for inspecting and manipulating WebAssembly modules.
  #systems #tools
• What we learned building a Rust runtime for TypeScript (Apr 26, 2026)
  Encore on shipping 67K lines of Rust to back TypeScript — handling HTTP, DB, pub/sub, and tracing in Rust while exposing it via NAPI.
  #essays #systems
• Your file system is already a graph database (Apr 26, 2026)
  On treating directories of interlinked markdown as a queryable graph instead of yet another bespoke note-taking app.
  #essays #systems
• Building a Shell (Apr 4, 2026)
  A hands-on walkthrough of building a Unix shell from scratch.
  #systems
• How to turn anything into a router (Apr 4, 2026)
  From a Raspberry Pi to a NUC — a practical guide to building your own router.
  #systems
• gotreesitter (Mar 1, 2026)
  Pure Go implementation of the tree-sitter parsing runtime.
  #tools #systems
• How to allocate memory (Mar 1, 2026)
  Short, sharp essay on memory allocation strategies and tradeoffs.
  #systems #compsci
• Ladybird adopts Rust, with help from AI (Mar 1, 2026)
  The Ladybird browser project adopts Rust for new components, using AI to assist migration.
  #web #systems
• The Memory Allocator (Mar 1, 2026)
  Deep dive into Go's memory allocator internals, from the Internals for Interns series.
  #systems #compsci
• unf (Mar 1, 2026)
  Filesystem flight recorder that tracks file changes for undo and audit.
  #tools #systems
• DuckDB isn't just fast (Feb 7, 2026)
  A whistlestop tour of the cool bits of DuckDB
  #essays #systems
• ffs (Feb 7, 2026)
  Mount semi-structured data (like JSON) as a Unix filesystem.
  #systems
• Mecha Comet (Feb 7, 2026)
  Modular Linux handheld with snap-on extensions. ARM64, AMOLED, GPIO breakout, open-source throughout.
  #systems
• Cosmopolitan Libc (Feb 7, 2026)
  Build-once run-anywhere C library. One binary that runs on Linux, Mac, Windows, FreeBSD, OpenBSD, and NetBSD.
  #systems
• WebVM - Linux virtualization in WebAssembly (Feb 7, 2026)
  Linux virtual machine, running in the browser via HTML5/WebAssembly. Networking and graphics supported.
  #systems
• 0x.tools (Feb 7, 2026)
  Always on Profiling for Production Systems
  #systems
• Huge binaries (Dec 29, 2025)
  The problems of dramatic binary scale that academia doubts exist but industry lives with daily.
  #systems
• Life of an inference request (vLLM V1) (Jun 29, 2025)
  How vLLM serves large language models efficiently at scale — at the intersection of AI and systems programming.
  #ai #systems
• Falsehoods Programmers Believe About Aviation (Jun 7, 2025)
  In the spirit of Patrick McKenzie's classic piece on names — false assumptions about aviation data types and schemas.
  #systems

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