Add experimental macOS launcher support

[morganlavery]

What changed

Adds experimental macOS launcher support for theDAW:

• adds a double-clickable start-dev.command launcher for macOS
• adds a native WebKit theDAW.app wrapper so the UI opens in an app window instead of a browser tab
• adds scripts to generate the local app wrapper and drag-to-Applications DMG
• documents the macOS launcher path in the README with explicit experimental wording
• makes aubio optional on macOS because aubio==0.4.9 does not currently build cleanly against NumPy 2 on Apple Silicon
• lets Chimera run with the existing librosa fallback when aubio is unavailable, while still requiring FFmpeg
• tightens the librosa fallback to report the source sample rate and improve beat timing resolution

Why

The current one-shot launcher is Windows-only. This gives macOS users a practical development-app launcher path without presenting it as a finished native distribution.

This is intentionally framed as experimental: the generated app wrapper launches the checked-out repository and is not yet fully self-contained, signed, or notarized.

Validation

• uv sync --locked
• npm run lint
• npm run build
• uv run pytest tests/test_chimera_detect.py tests/test_chimera_mashup_endpoint.py
• bash -n start-dev.command scripts/macos/create-app.sh scripts/macos/create-dmg.sh
• compiled scripts/macos/TheDAWLauncher.swift with swiftc
• launched build/theDAW.app and verified backend health plus frontend HTTP 200
• created and verified build/theDAW.dmg locally with hdiutil verify

Notes

The generated .app and .dmg artifacts are intentionally not committed. They can be produced locally with:

scripts/macos/create-app.sh
scripts/macos/create-dmg.sh

[danieljtrujillo]

Is this verified working on MacOS?

[morganlavery]

Yes, I have it runningVery little issue so far except for the library link wasn't workingI have it working nowMorgan Lavery775-954-6598On Jun 9, 2026, at 6:07 PM, Daniel Joaquin Trujillo ***@***.***> wrote:danieljtrujillo left a comment (gantasmo/StableDAW#52) Is this verified working on MacOS? —Reply to this email directly, view it on GitHub, or unsubscribe.You are receiving this because you authored the thread.Message ID: ***@***.***>