Deezer playlists show up as their own playlist type in the my.jooki.rocks web dashboard. To use Deezer playlists with Jooki, first use "Add playlist" and select "DEEZER" as the type.
If this is the first time you're using Deezer on this Jooki, you will be asked to link Jooki to your Deezer account. This needs to be done only once, Jooki remembers your login info.
Click the "Connect your Deezer account" button. This will open up the Deezer sign-in window. Enter your account details and click "Log in".
If the login is successful Jooki will show the playlists you have saved in your Deezer account. Select the playlist you want to use with Jooki.
After selecting the Deezer playlist it will be available in the Jooki list and can be linked to a character.
You can add as many Deezer playlists as you want. Enjoy!