diff --git a/hosts/idols-ai/impermanence.nix b/hosts/idols-ai/impermanence.nix
index ad4ad1ae..0e377904 100644
--- a/hosts/idols-ai/impermanence.nix
+++ b/hosts/idols-ai/impermanence.nix
@@ -54,10 +54,9 @@
     # the following directories will be passed to /persistent/home/$USER
     users.ryan = {
       directories = [
-        "codes" # for personal code
-        "work" # for work, contains a .gitconfig with my work email.
-        "nix-config"
-        "tmp"
+        # ======================================
+        # System Defaults
+        # ======================================
 
         "Downloads"
         "Music"
@@ -65,23 +64,46 @@
         "Documents"
         "Videos"
 
-        {
-          directory = ".gnupg";
-          mode = "0700";
-        }
-        {
-          directory = ".ssh";
-          mode = "0700";
-        }
+        # ======================================
+        # Codes / Work / Playground
+        # ======================================
+        "codes" # for personal code
+        "work" # for work, contains a .gitconfig with my work email.
+        "nix-config"
+        "tmp"
 
-        # misc
-        ".config/pulse"
-        ".pki"
-        ".steam" # steam games
-        ".var" # flatpak app's data
-        ".terraform.d/plugin-cache" # terraform's plugin cache
+        # ======================================
+        # IDE / Editors
+        # ======================================
 
-        # cloud native
+        # neovim plugins(wakatime & copilot)
+        ".wakatime"
+        ".config/github-copilot"
+
+        # vscode
+        ".vscode"
+        ".config/Code"
+        ".vscode-insiders"
+        ".config/Code - Insiders"
+
+        # cursor ai editor
+        ".cursor"
+        ".config/Cursor"
+
+        # zed editor
+        ".config/zed"
+
+        # doom-emacs
+        ".config/emacs"
+        "org" # org files
+
+        # Joplin
+        ".config/joplin" # tui client
+        ".config/Joplin" # joplin-desktop
+
+        # ======================================
+        # Cloud Native
+        # ======================================
         {
           # pulumi - infrastructure as code
           directory = ".pulumi";
@@ -103,60 +125,72 @@
           directory = ".kube";
           mode = "0700";
         }
+        ".terraform.d/plugin-cache" # terraform's plugin cache
 
-        # remote desktop
+        # ======================================
+        # language package managers
+        # ======================================
+        ".npm" # typsescript/javascript
+        "go"
+        ".cargo" # rust
+        ".m2" # java maven
+        ".gradle" # java gradle
+        ".conda" # python, generated by `conda-shell`
+
+        # ======================================
+        # Security
+        # ======================================
+
+        {
+          directory = ".gnupg";
+          mode = "0700";
+        }
+        {
+          directory = ".ssh";
+          mode = "0700";
+        }
+        ".pki"
+
+        # ======================================
+        # Games / Media
+        # ======================================
+
+        ".steam" # steam games
+        ".config/blender"
+        ".config/LDtk"
+
+        # ======================================
+        # Instant Messaging
+        # ======================================
+        ".config/QQ"
+        ".xwechat"
+
+        # ======================================
+        # Meeting / Remote Desktop
+        # ======================================
         ".config/remmina"
         ".config/freerdp"
         ".zoom"
 
-        # doom-emacs
-        ".config/emacs"
-        "org" #  org files
-
-        # vscode
-        ".vscode"
-        ".config/Code"
-        ".vscode-insiders"
-        ".config/Code - Insiders"
-
-        # cursor ai editor
-        ".cursor"
-        ".config/Cursor"
-
-        # zed editor
-        ".config/zed"
-
+        # ======================================
         # browsers
+        # ======================================
         ".mozilla"
         ".config/google-chrome"
 
-        # Joplin
-        ".config/joplin" # tui client
-        ".config/Joplin" # joplin-desktop
-
-        # neovim / remmina / flatpak / ...
+        # ======================================
+        # xdg data home & state home
+        # Used by:
+        #  neovim, flatpak, autin, fcitx5, etc...
+        # ======================================
         ".local/share"
         ".local/state"
 
-        # language package managers
-        ".npm"
-        ".conda" # generated by `conda-shell`
-        "go"
-        ".cargo" # rust
-        ".m2" # maven
-        ".gradle" # gradle
-
-        # neovim plugins(wakatime & copilot)
-        ".wakatime"
-        ".config/github-copilot"
-
-        # others
-        ".config/blender"
-        ".config/LDtk"
-
-        # IM
-        ".config/QQ"
-        ".xwechat"
+        # ======================================
+        # Misc
+        # ======================================
+        ".config/pulse"
+        ".var" # flatpak app's data
       ];
       files = [
         ".wakatime.cfg"