I am trying to sync my calendar between a hackintosh and an android phone without google, icloud and the likes. So far I´ve got syncthing to sync a folder called DecSync. I run a local Radicale server from that folder. Thunderbird on macOS can write to the calendar on that server. Now I´m looking for a solution like Radicale on the Android side. I have DAVx5 running but I can´t just point it to the synced folder there. It needs an accout. Is there such a solution? Or is there an easier way to sync calendars? Any help is highly welcomed. If I am wrong in here, as I am not really hosting anything, please say so, if possible with a different place to ask for help.