diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index ccd87657..da7bed2f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -52,6 +52,7 @@ pnpm dev:docs
 > [!TIP]
 >
 > - Add `-e production` to the development command to check the production environment, e.g. `pnpm dev:test -e production`.
+> - Add `-e debug` to enable debug mode (if applicable), e.g. `pnpm dev:test -e debug`.
 > - For documentation-related theme changes, it is recommended to clone both `FixIt` and `fixit-docs` as sibling directories.
 
 ### Building
diff --git a/apps/test/hugo.toml b/apps/test/hugo.toml
index 5445dbcd..7c0bf6a6 100644
--- a/apps/test/hugo.toml
+++ b/apps/test/hugo.toml
@@ -49,7 +49,3 @@ avatar = "https://lruihao.cn/images/avatar.jpg"
 
 [params.mermaid]
 zenuml = "https://cdn.jsdelivr.net/npm/@mermaid-js/mermaid-zenuml/dist/mermaid-zenuml.esm.min.mjs"
-
-[params.dev]
-enable = true
-debug = true
diff --git a/hugo.toml b/hugo.toml
index 65d36218..4100ae3c 100644
--- a/hugo.toml
+++ b/hugo.toml
@@ -1243,8 +1243,6 @@ postFooterAfter = []
 enable = false
 # Check for updates
 c4u = false
-# FixIt 0.4.0 | NEW Enable debug mode
-debug = false
 
 # Page config
 # TODO migrate mapping key to `params` layer in the future
diff --git a/layouts/_partials/_debug/dump.html b/layouts/_partials/_debug/dump.html
index 6f6de489..627ce713 100644
--- a/layouts/_partials/_debug/dump.html
+++ b/layouts/_partials/_debug/dump.html
@@ -3,8 +3,6 @@
   @example
   {{- partial "_debug/dump.html" . -}}
 */ -}}
-{{- $debug := (site.Store.Get "devOpts").debug -}}
-
-{{- if $debug | and hugo.IsServer -}}
+{{- if eq hugo.Environment "debug" | and hugo.IsServer -}}
   <pre>{{ debug.Dump . }}</pre>
 {{- end -}}
diff --git a/layouts/_partials/_debug/template-call-stack.html b/layouts/_partials/_debug/template-call-stack.html
index 0f91b13f..6850571c 100644
--- a/layouts/_partials/_debug/template-call-stack.html
+++ b/layouts/_partials/_debug/template-call-stack.html
@@ -3,9 +3,7 @@
   @example
   {{- partial "_debug/template-call-stack.html" . -}}
 */ -}}
-{{- $debug := (site.Store.Get "devOpts").debug -}}
-
-{{- if $debug | and hugo.IsServer -}}
+{{- if eq hugo.Environment "debug" | and hugo.IsServer -}}
   {{- with templates.Current -}}
     <ul class="template-call-stack">
       {{- range .Ancestors -}}
diff --git a/layouts/_partials/function/get-file-tree.html b/layouts/_partials/function/get-file-tree.html
index 08b2dac6..53ea3f2e 100644
--- a/layouts/_partials/function/get-file-tree.html
+++ b/layouts/_partials/function/get-file-tree.html
@@ -25,7 +25,7 @@
 {{- $isRecursive := .isRecursive | default false -}}
 {{- $_ignoreList := slice ".DS_Store" "Thumbs.db" ".directory" ".git" "node_modules" "public" -}}
 {{- $ignoreList := .ignoreList | default slice | union $_ignoreList -}}
-{{- $_debug := (site.Store.Get "devOpts").debug -}}
+{{- $_debug := eq hugo.Environment "debug" | and hugo.IsServer -}}
 
 {{- if $isRecursive -}}
   {{- if le $deep $level -}}