Wat-now Just a heads-up, KDE-Lite and related packages have disappeared (website appears tagged as "rotten flesh"?) and KDE-Sonic has taken its place. There are kwin-x11-sonic, plasma-x11-session-sonic and plasma-workspace-sonic binaries on Xlibre repo (with systemd dependencies). PKGBUILD indicate these new packages provides what their Lite counterparts do (both versions are in conflict), but I can't find any documentation about KDE-Sonic change of naming or the likes yet. Change is recent so maybe it will documented sometime soon.
Update: they are renaming the project to Sonic DE at the request of KDE due to trademark issues https://github.com/orgs/Sonic-DE/discussions/1#discussioncomment-15109091
