Works on my Clara HD just like in the video!
So I downloaded some publicly shared flashcard decks from:
https://ankiweb.net/shared/decks/
I tried:
Linux Shell Commands
https://ankiweb.net/shared/info/1107282144
Which worked well, although a feeble challenge to me.
Couple of quirks:
Could add the deck file from /mnt/onboard/ but not from /mnt/onboard/myanki/ directory.
If the font is too big e.g. 16, the front card gets letters chopped off at the bottom though there is still screen space.
Then I tried:
Piano Notes and Keys
https://ankiweb.net/shared/info/2145130205
And images work! But too tiny, so a zoom feature would be nice.
I tried a couple more decks with images:
Edible weeds and wild herb identification
https://ankiweb.net/shared/info/1794956578
Dog breeds
https://ankiweb.net/shared/info/152277077
These made good use of the E-ink mode while playing setting, so I could set the higher resolution.
A couple of images were too big for the screen, but the app handled panning the image with scrollbars.
So again solid performance, although zoom would be ideal.
It didn't respond to sleep button.
If I let it sleep, I would need to power cycle.
Overall a slick little flash card apo for studying, learning languages, preparing speeches, etc on your Kobo.
Also I think it is a great example for programmers who want to use their high-powered workstations to create a standalone CPlusPlus/Qt app.