https://www.joelonsoftware.com/2000/08/09/the-joel-test-12-steps-to-better-code/

12 Steps to Better Code

> A score of 12 is perfect, 11 is tolerable, but 10 or lower and you’ve got serious problems. The truth is that most software organizations are running with a score of 2 or 3, and they need serious help, because companies like Microsoft run at 12 full-time