chore: bypass mbx for universal macos release builds

[jdx]

The universal macOS release build passes both Apple targets to Cargo in one invocation. mbx 1.8.1 rejects this with managed linker selection supports one Cargo --target per invocation, causing the release build to fail before compilation.

Set MBX_DISABLE for the universal target so the Cargo shim passes through to native Cargo. Other matrix targets retain mbx.

Validation: actionlint, Prettier, and git diff --check pass. Verified the bypass behavior in mbx 1.8.1 source; the full signed release build was not run locally.

Fixes the failure in https://github.com/jdx/usage/actions/runs/33987850906/job/101364811217.

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Note

Low Risk
CI-only conditional env var for one matrix target; no runtime or application code changes.

Overview
Fixes universal macOS release builds that fail when mbx rejects Cargo invocations with more than one --target (the universal apple-darwin path passes both architectures in a single build).

The publish-cli workflow now sets MBX_DISABLE only for the universal-apple-darwin matrix entry so the Cargo shim falls through to native Cargo for that job. All other release targets keep mbx enabled.

^{Reviewed by Cursor Bugbot for commit ef315d9. Bugbot is set up for automated code reviews on this repo. Configure here.}

Summary by CodeRabbit

• Bug Fixes
  • Fixed universal Apple Darwin builds by preventing conflicting target processing during packaging.
  • Other build targets continue to use the existing packaging behavior.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: Central YAML (base), Organization UI (inherited)

Review profile: CHILL

Plan: Team

Run ID: 80b6b3ac-5805-43be-b01c-00b11711e7cb

📥 Commits

Reviewing files that changed from the base of the PR and between edabe42 and ef315d9.

📒 Files selected for processing (1)

• .github/workflows/publish-cli.yml

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📝 Walkthrough

Walkthrough

The publish workflow now sets MBX_DISABLE for universal-apple-darwin builds. Other matrix targets keep mbx enabled.

Changes

CLI publish workflow

Layer / File(s)	Summary
Universal Darwin mbx configuration .github/workflows/publish-cli.yml	The workflow disables mbx for universal-apple-darwin targets. Other targets do not set this flag.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Poem

I am a rabbit beside the build,
Universal apples are neatly filled.
mbx rests when two targets align,
Other builds proceed by design.
The publish path hops on time.

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