For Android, Davx5 plus JTX board, and you’re set. Just use the contacts, calendar, tasks and journals apps you feel comfortable with. I use Etar calendar, for example.

I don’t think it’s a very well adopted extension on any platform. It kind…feels out of place if you think about it. I did see Davx5 supports it, but I’m literally not seeing anything else.

I’m trying to think how it would be implemented in a simpler way than just using date entries and metadata mapping from an implementation standpoint, and I see no functional differences, so I can’t imagine developers really going out of their way to implement it when there’s already an existing and simpler method of essentially doing the same thing.

radicale can do cantacts as well btw. so that you can use the stock android contacts app. At least with DAVx5 on android.

I use exactly those you mention and the lack of journals on desktop is weird. Because of that I started implementing a notes app myself but never finished it.

I think Korganizer does journal, along with calendar and to-do.

What’s your usecase for the journals? That might help direct the discussion.

For work I use Outlook with caldavsynchronizer, but I’ve stepped away from those kind of Journals and now I’m tracking things in Logseq

For time tracking for work I’m using other tools too.