hosts/Infini-SERVER: update configuration

hosts/Infini-SERVER/default.nix

@@ -1,6 +1,8 @@
 { suites, profiles, pkgs, lib, ... }: {
   imports = lib.flatten [
     (with suites; [ base ])
+
+    ./hardware-configuration.nix
   ];
 
   modules = {
@@ -9,8 +11,35 @@
       timeout = 1;
     };
     hardware = {
-      gpu.nvidia = true;
+      # gpu.nvidia = true;
       form.server = true;
     };
+    filesystems = {
+      enable = true;
+      btrfs.enable = true;
+    };
+  };
+
+  environment.persistence."/persist" = {
+    directories = [
+      "/home"
+      "/etc/nixos"
+
+      # /var directories
+      "/var/log"
+      "/var/lib/systemd/coredump"
+    ];
+
+    files = [
+      "/etc/machine-id"
+
+      "/etc/ssh/ssh_host_rsa_key"
+      "/etc/ssh/ssh_host_rsa_key.pub"
+      "/etc/ssh/ssh_host_ed25519_key"
+      "/etc/ssh/ssh_host_ed25519_key.pub"
+
+      "/root/.local/share/nix/trusted-settings.json"
+      "/root/.ssh/known_hosts"
+    ];
   };
 }