Debian linux distribution for STM32MP157. Includes apt package manager.
Tested on Ubuntu.
Run linux.sh script. This script is referenced from digikey forum. Script will also download linux kernel which is big and takes time. It also has to compile linux kernel, again taking a lot of time. You might receive errors fist time you run the script, because some dependencies are not installed. This will be fixed in later versions.
This builds linux kernel version 5.15.32-armv7-lpae-x23. And bootloader is for STM32MP157a-dk1. It can be used also with STM32MP157d-dk1.
Last part of the script needs sudo permission.
After you burn image to an SD card, you have to resize rootfs partition manually. Use partition manager (KDE, Gnome etc.) for this.