This document discusses how startups can "hack" their company culture through coding it explicitly. It recommends writing down the answers to questions about company mission, customers, employees, competitors, etc. to make the implicit culture explicit. This allows the culture to be reviewed, tested and improved. The company Corporate Spring helps startups do this through 37-hour cultural hackathons where they discuss foundations, beliefs and hacks to implement. The goal is to beta test an improved culture code by the end of the hackathon.