Installation fails cryptically if xz is not installed

[lpil]

root@86a94ae61754:/# curl --proto '=https' --tlsv1.2 -LsSf https://github.com/tsloughter/beamup/releases/download/v0.6.0/beamup-installer.sh | sh
downloading beamup 0.6.0 aarch64-unknown-linux-gnu
tar (child): xz: Cannot exec: No such file or directory
tar (child): Error is not recoverable: exiting now
tar: Child returned status 2
tar: Error is not recoverable: exiting now
ERROR: command failed: tar xf /tmp/tmp.YVOsfSh24w/input.tar.xz --strip-components 1 -C /tmp/tmp.YVOsfSh24w