Recording a screencast and want to show your face?
npx facebubble and away you go.
facebubble runs in alwaysOnTop mode.
Use the global shortcut Command+Control+Option+F to toggle visibility.
You can toggle the size of the bubble with Command+B
Use Command+C to make the bubble follow the cursor, so you can position it.
To stop following the cursor, press Command+C again, or click somewhere.