Agree with sibling comment saying these are too abstract. Here are mine: Fundamentals: - Ecosystem beats language and syntax - Use boring, battle tested tech

Agree with sibling comment saying these are too abstract. Here are mine: Fundamentals: - Ecosystem beats language and syntax - Use boring, battle tested technologies - Use the relational database to do the heavy lifting - Avoid caching unless you have a great reason - Code cleanliness comes from simplicity, not elegance - There's higher leverage from improved code reading ability over writing ability Professional: - You grow faster building in good industries over interesting codebases - There's higher leverage from improving the business over improving the code - There's higher leverage in finding mentorship over being an autodidact - Make T-shaped buy vs build calls: build the secret sauce, try to buy the rest Probably leaving a bunch out.