AV Hub — One-Click Launcher (macOS)
Launch
QuickTime — New Movie Recording (use this for iPhone camera)
Audio MIDI Setup — make an Aggregate Device (merge mics/interfaces)
macOS Screenshot — screen/window recorder
Open
Shortcut ⌘⇧5
Sound Preferences — pick system input/output fast
Web tools
Devices your browser can see
Cameras
Microphones
Click “Grant permission” once so the browser can enumerate devices.