A terminal or another process going quiet does not send a completion notification. Turn finished alerts are reserved for whole turns started from Termdeck, so a Claude Code session you are driving in a terminal will not ping you when it stops. An approval notification also expires: its token is single use and lasts 5 minutes, as long as the approval itself, after which answering it asks you to open the app instead.
1. Connect the machine
Sign up, then in the dashboard open Settings, then Machines & accounts, choose Add machine and run the install command it shows on the computer where Claude Code runs. Quickstart.