There's a closed pull request on the void-packages repository

New package: wl-clipboard-x11-5
https://github.com/void-linux/void-packages/pull/11798

Description:
This is useful for syncing the X11 clipboard in Xwayland apps with the Wayland clipboard - this package in AUR form was crucial to my `sway` setup on Arch Linux, so it was a great candidate for learning Void packaging! :)

Upstream: https://github.com/brunelli/wl-clipboard-x11