Custom popup on login to nextcloud

Thank you for a great product!

I would like to know, is there any way for customizing welcome popup for nextcloud?
Something like splash screen on first login, but on every login?

It would be great to have multiple splash screen for different group of users.

I’ve read about announcements app, It doesn’t have media support (images) so it does not meet the requirements.

Maybe, someone knows the right way to implement this? Or there is an app that does this kind of things?

Thank you in advance!