You’re correct, but this Anki Wiki show how to build an rpm package from the available source code. It has the spec file listed. (You can cut and paste this into a text file).
Follow the instructions given, then you can use rpm command to install the rpm created. Someone will be able to assist if you have problems.
Note: anki depends on python-sqlalchemy, which is available in the Packman repo only.
I also asked a Packman maintainer (yaloki) to help in this matter. As a result, anki is now uploaded in the main Packman repository and will be propagated on the Packman repo mirrors in the next couple of hours.