I’ve just open sourced an internal tool we use at Trustpilot, that maybe other would find useful.
It’s a relatively simple notifier that sits in the menubar and notifies you with the alerts you find useful. You can select alerts for you, your team or services and have optional include/exclude filters to fine grain exactly what you want to see.
At this early state only a MacOS package have been created and tested. You’re more than welcome to contribute with features or the Linux / Windows version.
Find it here: https://github.com/trustpilot/pagerduty-notifier