✅ Amplify is installed!

Look for ⚡ in your menu bar (top-right). Click it, turn Boost on, and — when asked — Allow microphone access (that's how Amplify reads your audio to boost it).

One-time tip: If an app you already had open has no sound right now, just quit and reopen that app. Installing the audio driver briefly reset your Mac's sound — it only happens this once.