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 and accounts, choose Add machine and run the install command it shows on the computer where Claude Code runs. Quickstart.