Hi
I am an engineer that really liked the app but was a bit annoyed by the system
used to edit the cards so I automated the process to build cards from YaML files.
It is focused in *nix operating systems, no windows by now unless you know
how to run Linux in it.
The repository is in github: https://github.com/llou/jmflashcards
I hope you like it, and any comments are welcome.