using hashedPassword in live-env config now, also added disko to flake inputs

hosts/live-env/config.nix

@@ -3,13 +3,37 @@
 let
   userConfig = {
     isNormalUser = true;
-    initialPassword = "1234";
+    hashedPassword = "$y$j9T$OobgblSbriz8BMgqKXk8Q/$FlTKe918WI3e5m3sj0dDGO.R/rmJOqcscVZMtN5a/DD";
     shell = pkgs.zsh;
     extraGroups = [ "wheel" ];
   };
 in
 {
   imports = [ ./hardware.nix ];
+  boot.initrd.postDeviceCommands = lib.mkAfter ''
+    mkdir /btrfs_tmp
+    mount /dev/root_vg/root /btrfs_tmp
+    if [[ -e /btrfs_tmp/root ]]; then
+        mkdir -p /btrfs_tmp/old_roots
+        timestamp=$(date --date="@$(stat -c %Y /btrfs_tmp/root)" "+%Y-%m-%-d_%H:%M:%S")
+        mv /btrfs_tmp/root "/btrfs_tmp/old_roots/$timestamp"
+    fi
+
+    delete_subvolume_recursively() {
+        IFS=$'\n'
+        for i in $(btrfs subvolume list -o "$1" | cut -f 9- -d ' '); do
+            delete_subvolume_recursively "/btrfs_tmp/$i"
+        done
+        btrfs subvolume delete "$1"
+    }
+
+    for i in $(find /btrfs_tmp/old_roots/ -maxdepth 1 -mtime +30); do
+        delete_subvolume_recursively "$i"
+    done
+
+    btrfs subvolume create /btrfs_tmp/root
+    umount /btrfs_tmp
+  '';
 
   movOpts = {
     sysEnv = {
@@ -67,7 +91,7 @@ in
       persistence = userConfig // {
         extraGroups = userConfig.extraGroups ++ [ "persist" ];
       };
-      root.initialPassword = "1234";
+      root.hashedPassword = "$y$j9T$tjpyEif7XNctN0twWipqc/$hfVGMaVYVP7.gjqG.2eV34j2AoWp2AFBxox7B5QyQy3";
     };
   };
 }