# Decision Gate: Homebrew Global Installation & VM-Ready Deployment

**Branch**: `colonyos/add_brew_installation_we_should_be_able_to_have_f9c251f8f1`
**PRD**: `cOS_prds/20260330_182656_prd_you_are_a_code_assistant_working_on_behalf_of_the_engineering_team_the_following.md`
**Date**: 2026-03-30

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```
VERDICT: GO
```

### Rationale

All four persona reviewers — Andrej Karpathy, Linus Torvalds, Principal Systems Engineer (Google/Stripe caliber), and Staff Security Engineer — unanimously **APPROVE** across their final review rounds (Round 4). Zero CRITICAL or HIGH findings remain. The only residual items are LOW-severity maintainability notes (`setuptools<78` pin comment and `NODE_MAJOR=20` hardcoding), both of which are explicitly acknowledged as non-blocking by all reviewers. The implementation covers all 7 functional requirements from the PRD: Homebrew formula generation, release workflow tap update, install-method detection in doctor, VM provisioning script, README updates, and git-repo guard on init.

### Unresolved Issues

_(None blocking merge)_

- **LOW**: `setuptools<78` version pin should have a comment linking to the `pkg_resources` deprecation timeline for future maintainers
- **LOW**: `NODE_MAJOR=20` is hardcoded in `provision.sh` and CI; extract to a top-level constant when Node 22 LTS is adopted

### Recommendation

Merge as-is. The two LOW items are documentation-level improvements that can be addressed in a follow-up commit without blocking this release. The security posture (SHA-pinned actions, least-privilege PAT, credential helper, `GITHUB_TOKEN` for notifications) is production-ready per the Staff Security Engineer's assessment.
