Git

Git is the foundation of modern software. In 2025, features like Sparse Checkout and Scalar (for monorepos) are becoming mainstream.

When to Use

• Always: Use it for everything. Text files, config, code.
• Bisect: Finding bugs by binary search.

Core Concepts

Graph

Commits form a DAG (Directed Acyclic Graph).

Rebase vs Merge

• Merge: Preserves history, creates bubbles.
• Rebase: Rewrites history, linearizes.