<pre>
$ sudo pacman -S anki
resolving dependencies...
warning: cannot resolve "qt5-webengine", a dependency of "anki"
:: The following package cannot be upgraded due to unresolvable dependencies:
anki
<pre>

I am currently installing it with --assume-installed qt5-webengine to see if it runs. If not, maybe we could compile it to run without qt5-webengine, and then remove the dependency.