- How to write commits so that your co-workers love you. - write your PRs for other people - other people need to support your changes - you need to be able to look back in the future when things break and know why you did things (docs are better but this is the first draft) - AI tools ig (or at least for a self review) - important for career development (promotion documentation, and getting new jobs in open source work) - conventional commits - examples and how to test should be listed in the description if applicable