官方源：https://channels.nixos.org/
清华源：https://mirrors.tuna.tsinghua.edu.cn/nix-channels
本文使用清华源。
升级系统
官方文档：https://nixos.org/manual/nixos/stable/#sec-upgrading
比如升级到24.11，首先升级到
# sudo nix-channel --add https://channels.nixos.org/nixos-24.11 nixos
sudo nix-channel --add https://mirrors.tuna.tsinghua.edu.cn/nix-channels/nixos-24.11 nixos
sudo nixos-rebuild switch --upgrade
configuration.nix
{ config, pkgs, ... }:{imports = [# Include the results of the hardware scan../hardware-configuration.nix];boot.loader.efi.efiSysMountPoint = "/boot/efi";nix.settings.substituters = [ "https://mirrors.tuna.tsinghua.edu.cn/nix-channels/store" ];# Define a user account. Don't forget to set a password with ‘passwd’.users.users.searchstar = {isNormalUser = true;extraGroups = ["wheel" # Enable ‘sudo’ for the user."networkmanager"]; };# Use the systemd-boot EFI boot loader.boot.loader.efi.canTouchEfiVariables = true;boot.loader.grub = {enable = true;device = "nodev";efiSupport = true;useOSProber = true;};# Set your time zone.time.timeZone = "Asia/Shanghai";networking.networkmanager.enable = true;nixpkgs.config.allowUnfree = true;environment.systemPackages = with pkgs; [python3vim # The Nano editor is also installed by default.gitopenssltrash-cli]# Enable the X11 windowing system.services.xserver.enable = true;# Enable touchpad support (enabled default in most desktopManager).services.libinput.enable = true;# Enable CUPS to print documents.services.printing.enable = true;
}
修改之后要rebuild才能生效：
sudo nixos-rebuild switch
KDE
# Enable the X11 windowing system.services.xserver.enable = true;services.displayManager.sddm.enable = true;services.desktopManager.plasma6.enable = true;
中文输入法
官方文档：https://nixos.wiki/wiki/Fcitx5
i18n.inputMethod = {enable = true;type = "fcitx5";fcitx5.addons = with pkgs; [rime-datafcitx5-rime];};
flatpak
xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-kde ];xdg.portal.enable = true;services.flatpak.enable = true;
