I have used this code to run grundstation demo on Goatmire conference. It has path dependencies to other project in this organization. Take note that all of these codbases are total caos and stay tuned for reasonable version in upcoming months. I will also include instructions and BOM with that version.
For now this is just if you want to satisfy your curiosity.
If you want to run this you will have to compile this nerves system https://github.com/colibri-cam/nerves_system_rpi5_gs
It also depends on following repos https://github.com/colibri-cam/membrane_drm_sink