@LoudLemur it can be useful if you develop an app on mobile phones, and you want to know which features are used or not.
Lot of work goes into developing an app.
No point in having a feature if no-one uses it, alternatively it can point to need to evangelise that feature or improve its functionality or sign-posting in the app.
I am interested in adding this kind of monitoring (w/o privacy intrusion). "Metrics" have a bad name if abused (as BigTech usually does) but limited light usage monitoring does aid the development process.
That said, I haven't yet added usage reporting to my app yet. It's on the TODO list.
EDIT : PostHog seems like a "non-trivial" packaging for Cloudron, unless someone can say otherwise.
Currently I'm looking at a simple event log in a back-end DB (but not FireBase). Nowhere near the functionality of PostHog, but I don't need their full functionality.