Engineering

SA_ONSTACK is process-wide. sigaltstack is per-thread. When Go, Bun, .NET, and the JVM share a process, signals land on the wrong stack. One kernel field fixes the class.

Codemap, Aider, Gitingest, Repomix, and ghx solve different parts of agent code context: mapping, searching, packing, and deciding what to read before cloning.

On Kat Zhang's obsidian note network, the GitHub ecosystem around it, and what graph neuroscience says about the shape of minds

A CLI tool that looks simple took 23 agent sessions, 2,500+ turns, and three rewrites. This is what building with AI actually looks like.

Software engineering isn't going away — writing code without agents is. The role is expanding, not shrinking. Here's what that actually means.