Thanks for poiting this out, we were discussing about it a few days ago on the dev chatroom. Not sure we have the manpower to implement this though But that would be a really cool thing to have.
Yes, I’ve been using sentry for a very long time already, their error protocol is very simple so I’m very tempted since quite a lot of time to reimplement a very small simple sentry inside yunohost to catch the apps bugs in a central place for easier debugging. But, well, we sadly have more urgents things to do
Regarding packaging sentry has an app: it’s quite memory consuming (it’s designed for large scale).