Example of a Composite Driver

[balmy nimbus]

I'm currently trying to create a keyboard using both a matrix and just individually connected keys to my micro controller, but I haven't seen too many people do this before and I cant find any examples of it online. If anybody knows an example or could explain how to do it, it would be greatly appreciated because I am super lost.

Also, I have found the example of the composite driver in the documentation but I was wondering if any body has actually built a keyboard with the composite driver before and if I could see their files

[surreal spindle]

There is the ferris rev02 board in zmk repo as an example