August is a project mainly written in JAVASCRIPT and SHELL, it's free.
Simple Dvorak flashcard
A quick and dirty Dvorak flashcard.
To serve August from 0.0.0.0 on your local machine, run ./serve.sh [port]
(requires python). The default port is 8000.
Once you've loaded August in a browser, click on a key to fill it out, and hit "finished" when done. Errors will be highlighted with red borders, and the button will change to a "Reset" button, which clears the card.