diff --git a/template/.ffizer.yaml b/template/.ffizer.yaml
index 58c6216..cafee3e 100644
--- a/template/.ffizer.yaml
+++ b/template/.ffizer.yaml
@@ -3,6 +3,10 @@ variables:
     ask: Name of the function
   - name: category
     ask: Documentation category (lower case)
+  - name: unstable_apis
+    default_value: "false"
+    ask: Does the function require `--cfg=web_sys_unstable_apis` to be activated?
+    select_in_values: ["true", "false"]
   - name: module
     default_value: ""
     ask: Module [optional]
diff --git a/template/src/{{ module }}/{{ function_name }}.ffizer.hbs.rs b/template/src/{{ module }}/{{ function_name }}.ffizer.hbs.rs
index 3217414..0edb6ba 100644
--- a/template/src/{{ module }}/{{ function_name }}.ffizer.hbs.rs	
+++ b/template/src/{{ module }}/{{ function_name }}.ffizer.hbs.rs	
@@ -3,6 +3,9 @@ use leptos::*;
 
 ///{{#if (eq unstable_apis "true")}}
 ///
+/// > This function requires `--cfg=web_sys_unstable_apis` to be activated as
+/// [described in the wasm-bindgen guide](https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html).{{/if}}
+///
 /// ## Demo
 ///
 /// [Link to Demo](https://github.com/Synphonyte/leptos-use/tree/main/examples/{{ function_name }})