stemdeckapp/stemdeck v0.7.0-alpha.4 on GitHub

Important

macOS — first launch (no code signing yet). After dragging StemDeck to Applications, clear the Gatekeeper quarantine flag or macOS will say the app is damaged:

xattr -dr com.apple.quarantine /Applications/StemDeck.app

Optional — fresh-install cleanup. To reproduce a true first-run with no leftover state from earlier builds:

⚠️ rm -rf is permanent and cannot be undone. If you're not comfortable running terminal commands, use Finder instead: open each path via Go → Go to Folder (⇧⌘G) and move the folders to Trash manually.

rm -rf ~/Library/Application\ Support/StemDeck
rm -rf ~/Library/WebKit/app.stemdeck.desktop
rm -f  ~/Library/Preferences/app.stemdeck.desktop.plist
rm -rf ~/Library/Caches/stemdeck ~/Library/Caches/app.stemdeck.desktop

This is optional — the app will work without it.

What's new in 0.7.0 Alpha 4

Reliability

Fixed choppy audio on Safari / the macOS desktop app. Playback no longer streams a separate audio element per stem (which underran WKWebView's buffers and stuttered). Stems now play sample-accurately with no dropouts or inter-stem drift. (#165)

Architecture

New Web Audio decode-and-mix playback engine. Each active stem is decoded once and mixed on a single audio clock — zero streaming connections during playback, identical behavior across Safari, the desktop app, and Chrome. Per-stem gain boost above unity now works. A memory guard falls back to streaming for very long full-stem tracks. (#165)

Library

Edit Library — a new window from the Settings button lists every track in your library with its name, source (YouTube / SoundCloud / local file), and location (imported file or URL), in a scrollable list. (#168)
Out-of-sync detection — tracks whose audio is no longer on disk (e.g. cleared after the 24h job retention) are flagged in red, with a count shown at a glance. (#168)
Sync again — reconciles your library with the backend and automatically re-downloads + re-separates any out-of-sync tracks from their original source to restore them. (Local-file imports can't be auto-restored and stay flagged for manual re-upload.) (#168)

UI

Transport buttons now show their state in color — Play turns green while playing, Stop turns red when stopped, Loop turns blue while looping. (#166)

Installing

macOS: drop the .app into Applications and launch (run the xattr command above first).
Windows: unzip the downloaded .zip, then run StemDeck.exe from the extracted folder.

Artifact scan

Windows portable packages were scanned with ClamAV in CI before upload.

Artifact build

macOS arm64 and x64 DMGs and runtime packs were built and inspected on a macOS Woodpecker agent before upload.