documentation/Compiling-a-local-version-of-the-website.md

@@ -84,6 +84,8 @@ Activate your virtual environment, and then install the requirements:
 source venv/bin/activate
 pip install -r lego/lektor-requirements.txt
 pip install -r requirements.txt
+pip install dart-sass
+
 ```
 
 ### 8. Build the website for the first time