Remote pairing with ngrok + tmux

Host

Run install.sh
Sign into ngrok with your GitHub account
Run ngrok authtoken $YOUR_AUTH_TOKEN
On Mac, make sure System Preferences > Sharing > Remote Login is enabled.
Run tmux
Run whoami. Tell the user name to your pair.
Run ngrok tcp 22
You should see a line like tcp://0.tcp.ngrok.io:12345 in the output. Tell the port number to your pair.
Tell your computer's password to your pair.

Client

Run ssh <user name>@0.tcp.ngrok.io -p<port number>
Authenticate with computer's password
Run tmux a
You and your pair should now be connected to the same terminal session

Some quick tmux shortcuts

<C-Space>c creates a new tab
<C-Space>p and <C-Space>n navigate tabs
<C-Space>% creates a vertical split, <C-Space>" creates a horizontal split
<C-Space>h, <C-Space>j, <C-Space>k, <C-Space>l navigate panes (like vim)
<C-Space>[ enters vi mode
- You can navigate like normal vim and select text with v and then yank text with y
- You can quit with q
<C-Space>] pastes yanked text
<C-Space>d detaches from the tmux session (that is, the tmux session is still running)