How to un-bork QT/KWin after rm-rfing *qt6*

Unbork-qt6.md

So you ran rm -rf /usr/lib/libQt6* /usr/lib/qt6* /usr/include/qt6* /usr/bin/qt6* as root without thinking twice?

...And didn't have any backups of /usr/?

Here's how to fix it.

1. yay -Qv {plasma-desktop,dolphin,kio,qt6-base} shows the versions of the 3 different systems of QT/KDE packages. Note these down. I got:

plasma-desktop 6.3.5-1
dolphin 25.04.2-1
kio 6.15.0-1
qt6-base 6.9.1-1

2. Now, take these and put them into sudo pacman -Qe | rg "(25.04.2-|6.3.5-|6.9.1-)" (install ripgrep or replace with another PCRE2-compliant grep).

3. Install these packages again.

4. Do the same for sudo pacman -Qd | grep "(25.04.2-|6.3.5-|6.9.1-)" and install these again, taking care to add the --asdeps flag unless you want all your packages marked as explicitly installed.

5. If you did step 4 without reading "taking care to...", run sudo pacman -D --asdeps on all those packages in step 4.

6. Enjoy your fixed system. Consider backing up all your files (if you have the space).