Clarify purpose of nix-darwin module

[lucperkins]

Summary by CodeRabbit

• Documentation
  • Added clarification explaining that the nix-darwin module ensures compatibility and provides utilities but does not install Determinate Nix itself
  • Updated documentation references and removed obsolete links for improved accuracy

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[coderabbitai]

📝 Walkthrough

Walkthrough

The README documentation was updated to clarify Determinate's nix-darwin module behavior, directing users to proper installation documentation and highlighting module features. Two obsolete external link references were removed, and one link reference was updated.

Changes

Cohort / File(s)	Summary
Documentation Updates README.md	Added IMPORTANT clarification under nix-darwin section explaining that Determinate's nix-darwin module does not install Determinate Nix; updated link reference from [fh] to [docs]; removed obsolete [netrc] and [nix-conf] external links

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

Suggested reviewers

• colemickens

Poem

🐰 A note for the users, clear and true,
About nix-darwin's what it can do,
Old links removed with careful care,
Documentation's now debunked and fair! ✨

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly matches the main change: clarifying that the nix-darwin module does not install Determinate Nix and its actual purpose, which is the primary addition to the README.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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📜 Recent review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 4df6b45 and e588081.

📒 Files selected for processing (1)

• README.md

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (1)

• GitHub Check: test-modules (macos-latest)

🔇 Additional comments (1)

README.md (1)

69-71: Helpful clarification for nix-darwin users.

The IMPORTANT note effectively clarifies the module's purpose and prevents user confusion. The [docs] link pointing to https://docs.determinate.systems is correct—the documentation homepage provides access to installation instructions, platform-specific guides, and getting started resources. No changes needed.

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