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

[throw0101b]

> 3. even `adduser` will not allow it by default

5. useradd does allow it (as noted in a comment). 6. Local users, and the utilities that create them, are not the only source, there things like LDAP and AD.

7. POSIX allows it:

* https://github.com/systemd/systemd/issues/6237#issuecomment-...