Hi @jjsteele,
Presuming that you want to stick with a Debianoid, the process is roughly:
- create a mender-convertconfiguration, probably based off the RPi one.
- prepare a patched version of their u-boot. You can use the RPi one at GitHub - mendersoftware/uboot-mender at mender-rpi-2024.04 as reference
- create the u-bootbinary, environment tools and corresponding configuration files, and provide them to themender-convertconfig, usually through the assets directory.
Hope this helps,
Josef