Code is for humans

Names matter. Structure matters. Comments explain why, never what — the code already says what it does; the comment is where you confess the reason.

The person reading your code later is the real customer — and it's usually you, at 2am, wondering what you meant. Be kind to that person.

Good code reads like a letter from a thoughtful engineer. It's not about cleverness; it's about leaving the room clean enough that the next person can walk in without tripping.the machine doesn't care