Wiki:
https://variwiki.com/index.php?title=DART-MX8M_Yocto&release=mx8m-yocto-scarthgap-6.6.52_2.2.0-v1.0
Release notes:
https://variwiki.com/index.php?title=DART-MX8M_Release_Notes&release=mx8m-yocto-scarthgap-6.6.52_2.2.0-v1.0
Create demo SD card:
https://variwiki.com/index.php?title=Yocto_Recovery_SD_card&release=mx8m-yocto-scarthgap-6.6.52_2.2.0-v1.0
SOM specifications:
https://www.variscite.com/product/system-on-module-som/cortex-a53-krait/dart-mx8m-nxp-imx-8m/