# Review by Andrej Karpathy (Round 3)

Review complete. Here's the summary:

---

**VERDICT: approve**

**FINDINGS:**
- `[scripts/generate-homebrew-formula.sh]`: `setuptools<78` pin will eventually need updating — add a comment linking to the pkg_resources deprecation timeline. Non-blocking.
- `[deploy/provision.sh]`: `NODE_MAJOR=20` is hardcoded; consider extracting to a top-level constant for easier bumping when Node 22 LTS lands. Non-blocking.

**SYNTHESIS:**
Clean, well-executed infrastructure PR that delivers exactly what the PRD specified. All 7 functional requirements are implemented, all 402 tests pass with zero regressions, and all 4 round-1 findings have been properly addressed (silent secret input, credential helper, redundant `which` removal, sed comment). The engineering decisions are sound: deterministic formula generation via `homebrew-pypi-poet`, proper concurrency control on tap updates, graceful warn-not-fail for non-git repos, and simple-but-effective install method detection via `sys.executable` path heuristics. No LLM-layer interaction means the primary AI risk vectors don't apply. Ship it.

Review saved to `cOS_reviews/reviews/andrej_karpathy/20260330_182656_round2_add_brew_installation_we_should_be_able_to_have.md`.
