Workaround for @ sign as extra key

Hi, I would like to use the @ sign as a trigger to open a command. Is there any way to accomplish that with CodeMirror?

Thought about extraKeys, but unfortunately @ is no separate key you can press, so any idea how to do this?

Thx for your help!

If you bind '@' (single quotes included in the actual bound key name) through CodeMirror’s key binding mechanisms, that binding will fire when the @ character is typed.