Hi! I put together some basic templates for the setting elements and character playbooks! Use them as a jumping off point if you like!
https://drive.google.com/drive/folders/1POW97nTLQOmpgX2K4IjcsjI3uRMkFfCc?usp=sha...
Also check out "Designing New Games" from the Dream Askew/Dream Apart book! (Provided by Avery Alder.)
https://www.dropbox.com/s/d2bs7rtknecr76w/Designing%20New%20Dreams.pdf?dl=0