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configuration.nix

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+{ config, lib, pkgs, ... }:
+{
+  nix.settings.substituters = 
+  [ 
+    "https://mirrors.ustc.edu.cn/nix-channels/store" 
+  ];
+  nix.settings.trusted-public-keys = [
+    "cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY="
+  ];
+  imports =
+    [
+      ./hardware-configuration.nix
+    ];
+
+  boot.loader.grub.enable = true;
+  boot.loader.grub.device = "/dev/sdb";
+
+  networking.hostName = "kami";
+
+  time.timeZone = "Asia/Shanghai";
+
+  i18n.defaultLocale = "en_US.UTF-8";
+
+  systemd.tmpfiles.rules = [
+  "d /docker-compose 0755 root root -"
+  "d /docker-compose/docker-root 0755 root root -"
+  ];  
+  
+  virtualisation.docker.enable = true;
+
+  virtualisation.docker.daemon.settings = {
+  registry-mirrors = [
+    "https://docker.m.daocloud.io"
+    "https://docker.1panel.live"
+    "https://hub.rat.dev"
+    "https://registry.docker.jp"
+    "https://kr.registry.ktcloud.com"
+    "https://docker.sg.mirror"
+    "https://my.mirror.docker.io"
+    "https://dockerhub.mirror.tw"
+    "https://docker.1ms.run"
+  ];
+  
+  data-root = "/docker-compose/docker-root";
+  };  
+
+  users.users.kami = {
+     isNormalUser = true;
+     extraGroups = [ "wheel" "docker"];
+     hashedPassword = "$6$K3dbe2DC/9mq7Y8h$0Uy/lNwnFTHAjC61imz1wWQvDo12BUtOsgbP4vRAgN9gR.RFV8ZHw/6ns16.QO1KoXNuPxxNSoYMDk1HSYq/O/";
+     };
+
+  environment.systemPackages = with pkgs; [
+     vim
+     curl
+     openssh
+     htop
+     git
+     neofetch
+   ];
+
+  services.openssh.enable = true;
+  services.openssh.settings.PasswordAuthentication = true;
+
+  networking.firewall.enable = false;
+
+  system.copySystemConfiguration = true;
+
+  system.stateVersion = "25.05";
+
+}
+
+