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Try to delete the feature or process to build things that are required.
A simple solution is better than a complex one.
Requirements belong to individuals, not teams
Whatever can go wrong will go wrong. So a solution is better the fewer possibilities there are for something to go wrong.
Instead of keeping what you learn to yourself, share it as you go, for accountability, feedback, and networking.
Make the hidden principles, ideas and behaviors which make up a technology organization understood and explicit