The images contained here are in 2 different formats.  1 uses mbr and the other gpt.  Below is a quick matrix to help determine which image is need for each board on the "supported" list.

opi5- gpt
r5b - gpt
potato -mbr
renegade elite -gpt
renegade - mbr
tritium - mbr
laFrite - mbr
opi3b - gpt

As always, these images are for testing purposes only and are "use at your own risk".

For the libre boards, use the libre-flash-tool found on github to flash uboot to the sd card/emmc.
https://github.com/libre-computer-project/libretech-flash-tool

For the orangepi 5 and rock 5b, if uboot is already on the board's nor flash, you're all set.  If not, the process is a little more involved.

Board not on the list?  no problem.  Try one or both of the images along with uboot.

As of 05.23.2024, all images built are based on kernel-mainline-sbc-6.6.x.  prior to that, it was 6.8.x

As of 08.01.2024, all images built are based on kernel-mainline-sbc-6.10.x.

As of 8.15.2026, Rocky10.aarch64_20260815-05.raw.zst uses the 6.18 kernel from centos-kmods SIG

Any/all feedback can be posted in the Rocky AltArch channel on mattermost.  
https://chat.rockylinux.org/rocky-linux/channels/altarch