Arm64 install iso?

[xvalen]

I am trying to create install iso for arm64, resp. aarch64 platform.

I have changed build-iso.sh and added -s aarch64-linux as shown bellow.

Build the image

printf 'Attempting to build the image...\n\n'
image=$(guix time-machine -C './guix/channels.scm' -- system image -s aarch64-linux -t iso9660 './guix/installer.scm')
|| die 'Could not create image.'

But build failed. I would like to create arm64 iso for install in Hetzner cloud platform with Ampere Altra CPUs. Is possible to build such install iso or is it currently hard or impossible to do?

Thanks