Locales
Troubleshooting when using nix on non-NixOS linux distributions
You may need to set the environmental variable LOCALE_ARCHIVE to point to your system's locale-achive. The following can be added to your .zshenv (zsh) or .profile (bash) and applies to Debian, Red Hat, and Arch derivatives:
export LOCALE_ARCHIVE=/usr/lib/locale/locale-archive
Enable locale support in Nix shell
To support locales within a Nix shell, for example to get localised command output, you need to do something similar:
pkgs.mkShell {
# [other code omitted]
LOCALE_ARCHIVE = "${pkgs.glibcLocales}/lib/locale/locale-archive";
}