This is a remix of Functional Print Fridays' Neptune 4 camera mount and Djsprints_1671703's tension lock.
https://www.youtube.com/watch?v=fsqHY-fASec
https://www.printables.com/model/718122-camera-mount-with-x-axis-tension-holder-for-neptun

I used this camera: https://www.aliexpress.us/item/3256804708741244.html
Just pull the camera off of the clip and pop it onto this mount, then slide the whole thing over the X tension knob. There are also screw holes in the back to secure it more tightly.