init

modules/nixos/sysatomic.nix

@@ -0,0 +1,61 @@
+# 配置原子系统, 使用 tmpfs 作为根文件系统, 并配置持久化存储
+{ inputs, config, pkgs, username, lib, ... }:
+{
+  imports = [
+    inputs.impermanence.nixosModules.impermanence
+  ];
+
+  # 启用 tmpfs 作为根文件系统
+  fileSystems."/" = lib.mkForce {
+    device = "tmpfs";
+    fsType = "tmpfs";
+    options = [ "relatime" "mode=755" ];
+  };
+
+  # 将 /nix 目录绑定到持久化存储
+  fileSystems."/nix" = lib.mkForce {
+    device = "/dev/disk/by-label/nixos"; # 需要根据实际情况修改
+    fsType = "btrfs";
+    options = [ "compress-force=zstd" ];
+
+  };
+
+  # 配置持久化存储
+  environment.persistence."/nix/persistent" = {
+    hideMounts = true;
+    directories = [
+      "/etc/nixos"
+      "/etc/NetworkManager/system-connections"
+      "/var/log"
+      "/var/lib"
+      "/root"
+    ];
+
+    files = [
+      "/etc/machine-id"
+      "/etc/ssh/ssh_host_ed25519_key"
+      "/etc/ssh/ssh_host_ed25519_key.pub"
+      "/etc/ssh/ssh_host_rsa_key"
+      "/etc/ssh/ssh_host_rsa_key.pub"
+    ];
+
+    users.${username} = {
+      directories = [
+        ".config"
+        ".cache"
+        ".local"
+        ".ssh"
+        ".vscode"
+        ".npm"
+        ".nix"
+        "data"
+        "doc"
+      ];
+
+      files = [
+        ".zsh_history"
+        ".gitconfig"
+      ];
+    };
+  };
+}