It has been like this since the module was added, but it hasn't caused problems because greetd assumes a default user of "greeter"[1] when it isn't found anyway [1]: d700309623/item/greetd/src/config/mod.rs (L127)
d700309623/item/greetd/src/config/mod.rs (L127)
* nixos/greetd: Add greetd module * nixos/greetd: Configure 'greeter'-user * nixos/greetd: Add default for restart-option Co-authored-by: Jens Nolte <git@queezle.net>