# Review by Linus Torvalds (Round 1)

Here's my review as Linus Torvalds:

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**VERDICT: approve**

The implementation covers all 7 PRD functional requirements across 21 files and 2,189 lines added. All 329 tests pass. The code is straightforward — no over-engineering, no premature abstractions. Here are the key findings:

**What's good:**
- `detect_install_method()` is simple and correct — tuple in, tuple out
- `is_git_repo()` walks the hierarchy properly, handles submodule `.git` files
- `generate-homebrew-formula.sh` has solid input validation (rejects `v` prefix, validates SHA-256 hex format)
- Provisioning script has `--dry-run`, `--yes`, strict mode, and recommends `systemd-creds` for production secrets
- Release workflow correctly chains `update-homebrew` after `publish` with SHA-pinned actions

**What needs polish (non-blocking):**
1. **Duplicate docs** — `docs/homebrew-tap-setup.md` and `scripts/HOMEBREW_TAP_SETUP.md` describe the same thing; pick one
2. **Fragile sed** in formula generator — the blank-line stripping command is cargo-culted; use `grep -v` or remove
3. **`curl|bash` for nodesource** — inconsistent with GPG-verified GitHub CLI install in the same script
4. **`BASH_SOURCE` service file detection** — breaks when provision.sh isn't run from repo root
5. **"E2E" tests are content assertions** — the real `brew install --build-from-source` test (task 7.2) isn't implemented
6. **Dead `Formula/colonyos.rb`** — if the tap is canonical, this file just confuses people

The review artifact is saved at `cOS_reviews/reviews/linus_torvalds/20260330_182656_review_homebrew_install_vm_deploy.md`.
