Notification history
2 open-source tools on osfeed do this, in 3 ways. Each entry says how, and where it falls short. Read the tool's page before you rely on it.
Review notifications that were dismissed or expired in the panel's Recent list.
Limit Recent clears when the shell restarts.
Read up to 100 closed notifications, newest first, including ones held while snoozed, after a shell restart.
Limit Kept for historyHours (24 by default, 0 disables it); detected verification codes are redacted.
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Follow this needGet notified when a tool adds, fixes or changes a way to notification history, including tools added to osfeed later.