In the app's Alerts screen, paste a Slack incoming-webhook URL, or a bot token and a channel. Messages carry Approve and Open buttons that link to the problem. Tell alerts go there; wake alerts post there as well as pushing and calling. Slack is never the only path for a wake alert, because a muted channel cannot wake anyone.
Integrations · Alert channel
Slack
One message per problem in the channel you pick, with what broke and the fix waiting for approval.
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Sleep through the small stuff.
Run one command in your repo. Pagerless shows every change before it makes it.
npx pagerless connect