There is a new pull request by ProjectMoon against master on the void-packages repository

https://github.com/ProjectMoon/void-packages master
https://github.com/void-linux/void-packages/pull/20559

New package: etesync-dav
Etesync is an end-to-end encrypted contacts, calendar, and tasks synchronization service. The etesync-dav bridge runs a local dav server on your machine to give you access to your contacts and calendars on the desktop. This PR adds the package to Void Linux and the required dependencies which were missing in Void.

A patch file from https://github.com/void-linux/void-packages/pull/20559.patch is attached