First, I can confirm the post by Aperture Prometheus on December 26, 2024. If you follow the directions posted by Ben M February 17, 2024 you can get the Armbian 23.8.1 image running on the Jetson Nano
Second, I think I've also found why later versions are failing to boot. The EFI partition on the SD card is missing /boot.scr and /dtb/nvidia/tegra*dtb. In fact it's missing /dtb directory completely. As a result Linux isn't finding a root device and fails with:
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I've confirmed the EFI partition is missing those files in both the image downloaded from the Jetson Nano page and one I've just built myself. I don't yet know enough about the build process to determine why those files are missing.