When I update os from
Big Sur to
Monterey and open
terminal-notifier.app it shows me the message
“terminal-notifier.app” cannot be opened because the developer cannot be verified.
Why it shows me the messages
terminal-notifier doesn't seem to be maintained anymore, you can try out the more updated Nudge Notifier instead.
Besides Mac it can also forward notifications to Slack, Discord, and iMessage among some other neat features.