Customized glibcLocales package providing the LOCALE_ARCHIVE_* environment variable. This option only applies to the Linux platform. If Home Manager is installed as a NixOS submodule, this option defaults to NixOS' i18n.glibcLocales.

nixosConfig.i18n.glibcLocales or pkgs.glibcLocales

pkgs.glibcLocales.override { allLocales = false; locales = [ "en_US.UTF-8/UTF-8" ]; }