Elsewhere1. On their computer
They install Elsewhere and open it.
Elsewhere shows them two things: an ID that never changes, and a passcode that does. They read both to you over the phone.
MacBook Air
Share both. The passcode changes after each session.
Copy ID and passcodeWhen someone connects with these, you get a notification and a banner in this window. Nothing starts until you click Accept.
2. On yours
Click Add a computer on your Mac or PC, or tap it on your iPhone. Type the ID and passcode, and leave Save under Other computers on so you can find them next time.
3. They click Accept
Their computer shows a notification and a banner: your name, and Accept or Decline. Nothing starts until they click Accept, and the request goes away on its own after a minute.
When you're done
Disconnect, and their passcode changes. Next time, they read you the new one. Nobody can come back uninvited, including you.
Common questions
Can they stop the session?
Yes. The menu next to their clock shows that you're connected, with a Disconnect button.
Can I connect from my iPhone?
Yes. Tap Add a computer, then type their ID and passcode.