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Version Control
Save points for your code
What git actually is, commits as save points, branches, reading a diff, and undoing mistakes safely — the single highest-leverage skill for anyone shipping code.
- 1What version control actually isThe mental model that makes git make sense — before you touch a single command.8 min
- 2Your first commitThe three-step rhythm — change, stage, commit — that every save point follows.12 min
- 3Branches, without the fearHow to try risky changes in a parallel universe — and merge them back only if they work.11 min
- 4Reading a diff & undoing safelySee exactly what changed, and get back to safety when a change goes wrong.12 min