add check to secure admin install

Author: avallecam

learners/setup.md

@@ -157,6 +157,19 @@ Linux users require specific details per distribution. Find them in this [guide
 
 :::::::::::::::::::::::::::::
 
+::::::::::::: callout
+
+### Environment Check
+
+This step requires administrator privileges to install software.
+
+If you do not have admin rights in your current environment:  
+- ✅ Try running the tutorial on your **personal machine** where you have full access.  
+- ✅ Use a **preconfigured development environment** (e.g. [Posit Cloud](https://posit.cloud/)).  
+- ✅ Ask your **system administrator** to install the required software for you.  
+
+:::::::::::::
+
 ### 3. Install the required R packages
 
 <!--