Yes you can pretty easily selfhost sync for AntennaPod and Kasts with https://github.com/bohwaz/micro-gpodder-server (there are more official options that are heaver)
Do you know if it’s possible to use Vikunja as a frontend for next cloud tasks? It does it have some extra sauce on top of caldav?
Yeah it’s kinda the opposite of “New interface, old implementation.”
Which I learned from https://henrikwarne.com/2024/01/10/tidy-first/