diff --git a/flake.nix b/flake.nix
index 0e57531c..5478903d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -135,7 +135,6 @@
                 impermanence.enable = true;
                 networking =
                   { hostname = "pc"; nebula = { enable = true; lighthouse = "vps6.chn.moe"; useRelay = true; }; };
-                sops = { enable = true; keyPathPrefix = "/nix/persistent"; };
               };
               hardware =
               {
@@ -159,7 +158,7 @@
               };
               services =
               {
-                snapper = { enable = true; configs.persistent = "/nix/persistent"; };
+                snapper.enable = true;
                 fontconfig.enable = true;
                 samba =
                 {
@@ -249,20 +248,15 @@
                   substituters = [ "https://cache.nixos.org/" "https://nix-store.chn.moe" ];
                   autoOptimiseStore = true;
                 };
-                initrd =
-                {
-                  network.enable = true;
-                  sshd = { enable = true; hostKeys = [ "/nix/persistent/etc/ssh/initrd_ssh_host_ed25519_key" ]; };
-                };
+                initrd.sshd.enable = true;
                 kernel.patches = [ "preempt" ];
                 impermanence.enable = true;
                 networking = { hostname = "vps6"; nebula.enable = true; };
-                sops = { enable = true; keyPathPrefix = "/nix/persistent"; };
               };
               packages.packageSet = "server";
               services =
               {
-                snapper = { enable = true; configs.persistent = "/nix/persistent"; };
+                snapper.enable = true;
                 sshd.enable = true;
                 xrayServer = { enable = true; serverName = "vps6.xserver.chn.moe"; };
                 frpServer = { enable = true; serverName = "frp.chn.moe"; };
@@ -323,21 +317,16 @@
                 grub.installDevice = "/dev/disk/by-path/pci-0000:00:05.0-scsi-0:0:0:0";
                 nixpkgs.march = "broadwell";
                 nix.substituters = [ "https://cache.nixos.org/" "https://nix-store.chn.moe" ];
-                initrd =
-                {
-                  network.enable = true;
-                  sshd = { enable = true; hostKeys = [ "/nix/persistent/etc/ssh/initrd_ssh_host_ed25519_key" ]; };
-                };
+                initrd.sshd.enable = true;
                 kernel.patches = [ "preempt" ];
                 impermanence.enable = true;
                 networking = { hostname = "vps7"; nebula = { enable = true; lighthouse = "vps6.chn.moe"; }; };
-                sops = { enable = true; keyPathPrefix = "/nix/persistent"; };
                 gui.enable = true;
               };
               packages.packageSet = "desktop";
               services =
               {
-                snapper = { enable = true; configs.persistent = "/nix/persistent"; };
+                snapper.enable = true;
                 fontconfig.enable = true;
                 sshd.enable = true;
                 rsshub.enable = true;
@@ -402,11 +391,7 @@
                   swap = [ "/nix/swap/swap" ];
                   rollingRootfs = { device = "/dev/mapper/root1"; path = "/nix/rootfs"; };
                 };
-                initrd =
-                {
-                  network.enable = true;
-                  sshd = { enable = true; hostKeys = [ "/nix/persistent/etc/ssh/initrd_ssh_host_ed25519_key" ]; };
-                };
+                initrd.sshd.enable = true;
                 grub.installDevice = "efi";
                 nixpkgs.march = "silvermont";
                 nix.substituters = [ "https://cache.nixos.org/" "https://nix-store.chn.moe" ];
@@ -414,14 +399,13 @@
                 impermanence.enable = true;
                 networking =
                   { hostname = "nas"; nebula = { enable = true; lighthouse = "vps6.chn.moe"; useRelay = true; }; };
-                sops = { enable = true; keyPathPrefix = "/nix/persistent"; };
                 gui.enable = true;
               };
               hardware = { cpus = [ "intel" ]; gpus = [ "intel" ]; };
               packages.packageSet = "desktop";
               services =
               {
-                snapper = { enable = true; configs.persistent = "/nix/persistent"; };
+                snapper.enable = true;
                 fontconfig.enable = true;
                 samba =
                 {
@@ -495,7 +479,6 @@
                 kernel.patches = [ "cjktty" "preempt" ];
                 impermanence.enable = true;
                 networking.hostname = "yoga";
-                sops = { enable = true; keyPathPrefix = "/nix/persistent"; };
               };
               hardware =
               {
@@ -511,7 +494,7 @@
               virtualization.docker.enable = true;
               services =
               {
-                snapper = { enable = true; configs.persistent = "/nix/persistent"; };
+                snapper.enable = true;
                 fontconfig.enable = true;
                 sshd.enable = true;
                 xrayClient =
diff --git a/modules/services/snapper.nix b/modules/services/snapper.nix
index a2082270..e70d9949 100644
--- a/modules/services/snapper.nix
+++ b/modules/services/snapper.nix
@@ -3,7 +3,7 @@ inputs:
   options.nixos.services.snapper = let inherit (inputs.lib) mkOption types; in
   {
     enable = mkOption { type = types.bool; default = false; };
-    configs = mkOption { type = types.attrsOf types.nonEmptyStr; default = {}; };
+    configs = mkOption { type = types.attrsOf types.nonEmptyStr; default.persistent = "/nix/persistent"; };
   };
   config =
     let
diff --git a/modules/system/initrd.nix b/modules/system/initrd.nix
index 801b444b..7aa5da68 100644
--- a/modules/system/initrd.nix
+++ b/modules/system/initrd.nix
@@ -2,23 +2,32 @@ inputs:
 {
   options.nixos.system.initrd = let inherit (inputs.lib) mkOption types; in
   {
-    network.enable = mkOption { type = types.bool; default = false; };
     sshd =
     {
       enable = mkOption { type = types.bool; default = false; };
-      hostKeys = mkOption { type = types.listOf types.nonEmptyStr; default = []; };
+      hostKeys = mkOption
+      {
+        type = types.listOf types.nonEmptyStr;
+        default = [ "/nix/persistent/etc/ssh/initrd_ssh_host_ed25519_key" ];
+      };
     };
   };
   config =
     let
       inherit (inputs.config.nixos.system) initrd;
-    in { boot =
-    {
-      initrd =
-      {
-        systemd.enable = true;
-        network = { enable = initrd.network.enable; ssh = { enable = true; hostKeys = initrd.sshd.hostKeys; }; };
-      };
-      kernelParams = if initrd.network.enable then [ "ip=dhcp" ] else [];
-    };};
+      inherit (inputs.lib) mkIf mkMerge;
+    in mkMerge
+    [
+      { boot.initrd.systemd.enable = true; }
+      (
+        mkIf (initrd.sshd.enable)
+        {
+          boot =
+          {
+            initrd.network = { enable = true; ssh = { enable = true; hostKeys = initrd.sshd.hostKeys; }; };
+            kernelParams = [ "ip=dhcp" ];
+          };
+        }
+      )
+    ];
 }
diff --git a/modules/system/sops.nix b/modules/system/sops.nix
index 319d79e7..2c872a21 100644
--- a/modules/system/sops.nix
+++ b/modules/system/sops.nix
@@ -2,8 +2,8 @@ inputs:
 {
   options.nixos.system.sops = let inherit (inputs.lib) mkOption types; in
   {
-    enable = mkOption { type = types.bool; default = false; };
-    keyPathPrefix = mkOption { type = types.str; default = ""; };
+    enable = mkOption { type = types.bool; default = true; };
+    keyPathPrefix = mkOption { type = types.str; default = "/nix/persistent"; };
   };
   config =
     let