Aarch64 offline installs look up that machine's Node tarball in the merged installer
Pull request 14637 merges an installer change that unpacks the arm64 Node archive on aarch64, after an offline install stopped while looking for the x64 file.
The merged script reads uname -m, which reports the machine's architecture. On aarch64 it looks for node-v*-linux-arm64.tar.gz, and on every other machine it looks for node-v*-linux-x64.tar.gz, the file an x86_64 install already used. While the owner is being provisioned, a missing archive warns and tries the network instead of stopping the first boot.
emirb opened and merged the change. The pull request says the n1x branch already has this lookup, and that an x86_64 install was not run for this pull request. The author wrote that the x86_64 path is unchanged.