Howto install archlinux arm
download image
download raspbian lite image:
wget https://downloads.raspberrypi.org/raspios_lite_armhf/images/raspios_lite_armhf-2021-11-08/2021-10-30-raspios-bullseye-armhf-lite.zip
download archlinuxarm image:
wget http://os.archlinuxarm.org/os/ArchLinuxARM-rpi-aarch64-latest.tar.gz