Wiki:
https://variwiki.com/index.php?title=VAR-SOM-MX8_Yocto&release=mx8-yocto-kirkstone-5.15-2.0.x-v1.1
Release notes:
https://variwiki.com/index.php?title=VAR-SOM-MX8_Release_Notes&release=mx8-yocto-kirkstone-5.15-2.0.x-v1.1
Create demo SD card:
https://variwiki.com/index.php?title=Yocto_Recovery_SD_card&release=mx8-yocto-kirkstone-5.15-2.0.x-v1.1
SOMs specifications:
https://www.variscite.com/product/system-on-module-som/cortex-a72/var-som-mx8-nxp-freescale-i-mx8/
https://www.variscite.com/product/system-on-module-som/cortex-a72/spear-mx8-nxp-imx8/