Rename darkmatter formula to wn for the White Noise CLI

[erskingardner]

Retires the experimental darkmatter naming to match marmot-protocol/mdk#725, which renamed the CLI binaries dm/dmd → wn/wnd and moved the canonical source to marmot-protocol/mdk.

Changes

• Formula/darkmatter.rb → Formula/wn.rb — class Wn, homepage/source now marmot-protocol/mdk, built from the public v0.9.1 release tarball with a pinned sha256. Installs wn and wnd.
• formula_renames.json — maps darkmatter → wn so existing installs resolve on brew upgrade.
• README.md — adds the brew install marmot-protocol/tap/wn example.

Verification

Ran locally against the real v0.9.1 tag:

• brew style — no offenses
• brew audit --strict --online — clean
• brew install --build-from-source — built wn 0.9.1
• brew test — passes (wn/wnd --help, offline settings show)

🤖 Generated with Claude Code

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Summary by CodeRabbit

• New Features

  • Added a new installable formula for the White Noise CLI, including basic command verification.
  • Documented the recommended installation command in the README.

• Bug Fixes

  • Replaced the previous darkmatter formula with the new wn formula name.

• Chores

  • Added a formula rename mapping to preserve the package transition.

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[coderabbitai]

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Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: e985b9fd-978d-4e05-832f-b644f2a3cd73

📥 Commits

Reviewing files that changed from the base of the PR and between 09a9917 and c41a19b.

📒 Files selected for processing (4)

• Formula/darkmatter.rb
• Formula/wn.rb
• README.md
• formula_renames.json

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Walkthrough

This PR removes the darkmatter Homebrew formula and adds a new wn formula for the White Noise CLI, including metadata, build/install logic, and tests. README.md gains an install example, and formula_renames.json maps darkmatter to wn.

Changes

Darkmatter to Wn formula migration

Layer / File(s)	Summary
Wn formula metadata and install Formula/wn.rb, Formula/darkmatter.rb	Removes the darkmatter formula entirely; adds the new Wn formula with description, homepage, pinned tarball URL/SHA, license, head source, Rust build dependency, and a cargo install implementation for the crates/cli crate.
Wn formula test block Formula/wn.rb	Adds a test validating wn/wnd --help output and a settings show command using a temporary home and file secret store, asserting theme=system.
README and rename mapping updates README.md, formula_renames.json	Adds an install example for wn/wnd in README.md and a formula_renames.json mapping darkmatter to wn.

Estimated code review effort: 2 (Simple) | ~10 minutes

Related PRs: None identified.

Suggested labels: formula, documentation

Suggested reviewers: None identified.

🐰 A darkmatter fades into the night,
While wn CLI steps into the light,
Cargo builds its bins with care,
README shows you how and where,
A rename maps the old to new—
Homebrew hops along, on cue!

✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/eloquent-benz-168d0f

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[stage-review]

Ready to review this PR? Stage has broken it down into 2 individual chapters for you:

	Title
1	Migrate darkmatter formula to wn
2	Configure formula migration and documentation

_{Chapters generated by Stage for commit c41a19b on Jul 6, 2026 12:38pm UTC.}