To use these packages you will likely need to install flatpak & webkitgtk
from the slackaroni repo.

slackpkg install flatpak
slackpkg install webkitgtk

then take everything in this directory and run

upgradepkg --install-new *.txz

Pipewire must be enabled for GDM to operate properly, and for 
sount within the desktop to function, you will need to remove/ comment out
the "X-GNOME-Autostart-Phase" lines within the /etc/xdg/autostart/pipewire*.desktop
files.

I think everything needed is here, but don't quote me on that. ;)