Top posts

Every blog post that took off on Hacker News, ranked by the votes of its best submission. 1,421 posts.

Software Engineering
2026
993

Patching my guitar amp's firmware

I’m having a lot of fun with reverse engineering lately, so when I was looking over the service manual for my guitar amp, a Yamaha THR10c, and saw references to a UART header in the schematic, I got excited. I wondered if anything cool was hiding in there. Next to it was a JTAG header. I knew next to nothing about…

994

Working with Git Worktrees in Magit

I’ll admit that until fairly recently I had no idea git worktrees existed. They’ve been part of git for a decade1 and I never once needed them. Feature branches did the job just fine - create a branch, do the work, merge it, delete it, and start over. What finally introduced me to worktrees was, of all things, AI…

1000

The quadratic sandwich

If you have ever tried to minimize a function with gradient descent, you probably noticed that some functions are a joy to optimize and others are a nightmare. The difference often boils down to two properties: strong convexity and L-smoothness. These two concepts define a “sandwich” of quadratic bounds around your…

1008

Deno 2.9

`deno desktop` for building native desktop apps from web tech, first-class migration from npm/pnpm/yarn/Bun, CSS module imports, snapshot and parameterized testing, smaller `deno compile --bundle` binaries, and Node.js 26 compatibility.