It's pity that almost none of the carrier boards feature dual camera connectors for stereo video applications. The StereoPi is a rare exemption. The Pi CM4 boar

It's pity that almost none of the carrier boards feature dual camera connectors for stereo video applications. The StereoPi is a rare exemption. The Pi CM4 board itself has pinouts for dual cameras, no additional hardware needed. The firmware/software stack also supports stereo video capturing.