# Review by Linus Torvalds (Round 4)

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## Review Complete — Linus Torvalds (Round 3)

**VERDICT: approve**

**FINDINGS:**
- `[scripts/generate-homebrew-formula.sh]`: `setuptools<78` pin will eventually rot — CI catches it immediately when it breaks. Contained risk.
- `[scripts/generate-homebrew-formula.sh]`: GNU sed command is write-only, but only runs on Ubuntu CI runners. Fragile if run locally on macOS, but not a bug.
- `[deploy/provision.sh]`: `NODE_MAJOR=20` hardcoded — Node 22 LTS already out. One-line update when needed. Non-blocking.

**SYNTHESIS:**
Third round, implementation is solid. All 7 functional requirements implemented, all 403 tests pass, all previous findings addressed. The code is simple throughout — `detect_install_method()` is three conditionals, `is_git_repo()` is a parent-walk loop, the provisioning script is seven labeled steps each doing one thing. Formula generation is fully automated in CI, which is the correct answer to the maintenance burden I warned about. 20 files changed, 2265 lines added, all doing exactly what was asked for and nothing else. Ship it.

Review saved to `cOS_reviews/reviews/linus_torvalds/20260330_182656_round3_add_brew_installation_we_should_be_able_to_have.md`.
