$ file threadscope-ghc-9.10-ubuntu-latest.tar.xz
threadscope-ghc-9.10-ubuntu-latest.tar.xz: gzip compressed data, from Unix, original size modulo 2^32 22732800
should that be .gz, not .xz?
$ file threadscope-ghc-9.10-ubuntu-latest.tar.xz
threadscope-ghc-9.10-ubuntu-latest.tar.xz: gzip compressed data, from Unix, original size modulo 2^32 22732800
should that be .gz, not .xz?