[$] Debian opens a can of username worms

It has long been said that naming thingsis one of the hard things to do in computer science. That may beso, but it pales in comparison to the challenge of handlingusernames properly in applications. This is especially true when multipleapplications are involved, and they are all supposed to agree on whatcharacters are, and are not, allowed. The Debian project is facingthat problem right now, as two user-creation utilities disagreed aboutwhich names are allowable. A plan is in place to sort this outbefore the release of Debian13 ("trixie") sometime next year.