I wasn't able to get the above command to work, however this command worked for me. UBUNTU_STORE_ARCH=arm64 snap download node-red I used a laptop with an x86 cpu with ubuntu 20.04 to download the snap then moved the snap over. https://forum.snapcraft.io/t/how-do-i-download-a-snap-file-for-a-specific-architecture/21037
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