Maybe add a version with an installation from PyPI to README?
Unfortunately, you can only learn about it from the source tarball.
Apparently, then you will have to add something about the desktop file, such as
[Desktop Entry]
Name=Anki (aqt)
Type=Application
Exec=sh -c '~/pyenv/bin/anki'
Icon=/absolute/path/to/your/icon.png
It works for me.