Well, with a camera port. Both the soquartz and Quartz64-A have csi connector for the camera. The pinout is such that raspberry pi v2 camera (imx219) can be connected directly to soquartz. However for Quartz64-A it requires an adapter.

Regarding my imx219 code that pushes it to 120fps I haven't submitted it upstream because the way fps is set changed in v5 Linux kernels. I used a v4 driver as a starting point because many other features only worked on v4(such as full gpu encode/decode etc). Also I preferred my userland side to not have to calculate timing parameters as it would require a per device implementation.

So my 120fps imx219 driver is for linux kernel 4.19 named rk3566_bsp_kernel-4.19, but I do have plans to upstream my code when I make them compatible with newest.