The only app I miss from Android is BirthDayDroid. This app takes birthdays information from contacts and send notifications about them. Also provides convenient interface too look at the upcoming birthdays. GNU/Linux phones also have contacts and also support birthday fields. But is there a similar app to notify about birthdays?
I have my Contacts in NextCloud and it automatically creates a calendar called “Contact birthdays” which then shows up as a aditional calendar and in the morning you get a notification on your phone or computer about that birthday.
That’s great! Do I need a special calendar app? What calendar app are you using?
Just the build in on my phone or PC they all speak CalDAV