- Add -j/--jobs N flag to run N commits in parallel
- Use xargs -P for reliable parallel execution
- Refactor to use process_commit wrapper function
- Falls back to sequential when -j 1 or not specified
- Should provide 3-4x speedup when checking multiple commits
- Add --prefer-offline to pnpm install to avoid network calls
- Skip cargo check when no Rust files (.rs, .toml, Cargo.lock) changed
- Should provide modest speedup for commits without Rust changes