+ enhance docs

README.md

@@ -82,16 +82,11 @@ Adding nixosModule config:
 }
 ```
 
-> [!TIP]
-> During first setup, you need to manually create `storageLocation` and
-> add it to git (create an placeholder since git ignores empty directory).
+Then run renc before deploy.
+
+This step also needed every time the host key or secret content changed.
 
 ```bash
-mkdir -p ./secret/renc/HOSTNAME_HERE
-touch ./secret/renc/HOSTNAME_HERE/.placeholder
-# So that you could add the directory to git (for recognizing by flake).
-git add .
-# Freely could remove placeholder once complete this step.
 nix run .#vaultix.x86_64-linux.renc
 ```
 

module/default.nix

@@ -32,9 +32,11 @@ let
   # TODO: canonicalize this path, beauty
   storagePath = "/" + self + "/" + cfg.settings.storageLocation;
   storageExist = builtins.pathExists storagePath;
-  storageNotFoundWarn = warnIf (
-    !storageExist
-  ) "path not exist: ${storagePath}\nThis build will fail please run renc app and add ${cfg.settings.storageLocation} to git first." true;
+  storageNotFoundWarn =
+    warnIf (!storageExist)
+      # NOTICE: here has ASCII control char `\e` which may not shown in editor
+      "path not exist: ${storagePath}\nThis build will fail please run renc app and add ${cfg.settings.storageLocation} to git first."
+      true;
 
   settingsType = types.submodule (submod: {
     options = {