{ ... }: { i18n = { defaultLocale = "en_US.UTF-8"; extraLocaleSettings = { LC_ADDRESS = "cs_CZ.UTF-8"; LC_IDENTIFICATION = "cs_CZ.UTF-8"; LC_MEASUREMENT = "cs_CZ.UTF-8"; LC_MONETARY = "cs_CZ.UTF-8"; LC_NAME = "cs_CZ.UTF-8"; LC_NUMERIC = "cs_CZ.UTF-8"; LC_PAPER = "cs_CZ.UTF-8"; LC_TELEPHONE = "cs_CZ.UTF-8"; LC_TIME = "cs_CZ.UTF-8"; }; }; time.timeZone = "Europe/Prague"; nixpkgs.config.allowUnfree = true; boot.loader.systemd-boot.enable = true; }