KiCAD Footprint: Raspberry Pi Compute Module 4 (CM4) Carrier Template
If you want a template to help you design your own Raspbeery Pi Compute Module 4 carrier board (or daughterboard) so just use this template that comes with the CM4 KiCad library and gives an initial placement of Hirose connectors.
Note that a board outline has been added to be the exact size and shape of the CM4 board. This allows you to keep a neat stackup on your carrier board. However, feel free to move/delete the board outline if you wish to make the carrier board extend beyond the edges of the CM4 (e.g. you wish to add a PCIe connector).
Just go to the link below to download the KiCAD footprint/ template: