Five-line Friday note: what I built, what broke, what I'd explain to a junior

Takes about ten minutes. After eight weeks I could see a pattern: the 'broke' line was async error handling every single week. I'd been avoiding it by reading tutorials instead of writing the code. The note made that obvious in a way my weekly goals never did. Nothing fancy, just a notes file and a calendar reminder. Sharing in case someone wants a habit that isn't another problem set.