Featured notebooks from computational thinking

frontend/featured_sources.js

@@ -1,22 +1,33 @@
 export default {
     // check out https://github.com/JuliaPluto/pluto-developer-instructions/blob/main/How%20to%20update%20the%20featured%20notebooks.md to learn more
     sources: [
+        // 1: pluto featured notebooks
         {
+            // 1a: pluto featured notebooks from plutojl.org, this is preffered
+            id: "featured pluto",
             url: "https://featured.plutojl.org/pluto_export.json",
             // this is one month before the expiry date of our domain registration at njal.la
             valid_until: "2025-10",
-            id: "featured pluto",
         },
         {
+            // 1b: backup for the featured notebooks from jsdelivr, in case the live version (1a) does not work. The "id" is used for this.
             id: "featured pluto",
             url: "https://cdn.jsdelivr.net/gh/JuliaPluto/featured@v5/pluto_export.json",
             integrity: "sha256-+zI9b/gHEIJGV/DrckBY85hkxNWGIewgYffkAkEq4/w=",
         },
         {
+            // 2: featured notebooks from plutojl.org
+            id: "pluto website",
             url: "https://plutojl.org/pluto_export.json",
             // this is one month before the expiry date of our domain registration at njal.la
             valid_until: "2025-10",
-            id: "pluto website",
+        },
+        {
+            // 3: featured notebooks from computational thinkin
+            id: "computational thinking",
+            url: "https://computationalthinking.mit.edu/Fall24/pluto_export.json",
+            // this is one month before the expiry date of our domain registration at njal.la
+            valid_until: "2025-10",
         },
     ],
 }