Test before coding—list what breaks. Read unfamiliar code weekly. Debug with logs, not guesses. Ship to real users and iterate. Master one domain for 2+ years. Repeat forever. Everything else changes. This doesn't.
Test before coding—list what breaks. Read unfamiliar code weekly. Debug with logs, not guesses. Ship to real users and iterate. Master one domain for 2+ years. Repeat forever. Everything else changes. This doesn't.