@futurebird
Teach The Ten Commandments of Egoless Programming. Especially "you are not your code" and "kindness to the coder, not the code"
Managed Coder: Advice to a New Programmer https://share.google/ahp9eb3GQvBOIfo8b

Teach paired programming, giving everyone a coding/debugging buddy. This is one of the most effective ways to level set coding standards and skills. Students learn from each other. It also prepares them for more public code reviews.