On: Run0, a systemd based alternative to sudo, announc...

[yjftsjthsd-h]

IIRC, xz was used by a systemd library, and that systemd library got added to sshd so it could tell systemd when it had started or something like that. SSH itself doesn't use xz.

[fullstop → yjftsjthsd-h]

ssh out of the box also does not use libsystemd, except on systems which were patched to do so.

[riddley → yjftsjthsd-h]

xz is a compression library.

[yjftsjthsd-h → riddley]

I'm aware? It's a compression library that is used by systemd, including in a systemd library that got added to sshd in some distros.