Sorry new Toyotas have mandatory alcohol testers?
Which locale are you in? I’ve heard of mandatory breathalysers for work vehicles or DUI drivers but all new cars?
Beeper is owned by Automattic (of Wordpress fame). They’re a corp but I wouldn’t call them mega and they use matrix which is an open federated protocol.
You can run your own matrix server but tbh it’s easier for someone else to do it.
Not to mention the obvious advantages of their bridges into the closed networks of WhatsApp/fb/x/instagram etc
There’s a launcher called T-UI I used to use when I had an android. One of the features it allowed was this. It would display a log of all your notification on your Home Screen and you could just click it and go straight into the conversation as if you’d clicked the actual notification. And u could always scroll up and view older notifications because they weren’t dismissed.