GURPS Psionic Powers offers a way to create psychic characters using a powers framework.
GURPS Martial Arts codifies fighting styles in an easy to use block. In Pyramid #3/69:
Psionics II I created the first fusion of these two books with “Mind and Body”. Here is another martial
arts style that never made it to Pyramid. . .
. . . if you’d like to read more, consider becoming a patron!
Note: the link to the actual content for patrons is here.