The Anki card templates are styled after WaniKani's layout with a few alterations. They are divided into four note types: radicals, kanji, vocab, and verbs.
This repository contains the HTML, CSS and JavaScript needed to style the cards, but does not contain the card decks themselves. The deck content for the radicals, kanji, and vocab decks was compiled from the paid @WaniKani service and is not free use. The verbs deck is the exception, as I am compiling that myself. Once I complete the deck with all the verbs used in the JLPT exams, I would be happy to offer it here for download.
@WaniKani, and its parent company, @Tofugo, also host their own GitHub repos for the community to use.