Sync again. Should be available now and don't forget to enable the obcommunity-testing repo in pacman.conf
Also I would like to say something about wlroots on Obarun. The software is builded without the logind option.
From the meson_options.txt file
option('logind', type: 'feature', value: 'auto', description: 'Enable support for rootless session via logind')
And the logind option are:
option('logind-provider', type: 'combo', choices: ['auto', 'systemd', 'elogind'], value: 'auto', description: 'Provider of logind support library')
That mean wlroots can not be built with the rootless capability on Obarun which use consolekit2.