diff --git a/.project/concepts/app-contract/_debt.md b/.project/concepts/app-contract/_debt.md
index dc656d6..a4ccdc2 100644
--- a/.project/concepts/app-contract/_debt.md
+++ b/.project/concepts/app-contract/_debt.md
@@ -8,3 +8,4 @@
 - TOUCHED packages/polyfill/src/index.ts @2026-09-21 (session f93872b5-293a-4916-a353-181409a96d42)
 - TOUCHED packages/polyfill/src/surface/orm.ts @2026-09-21 (session f93872b5-293a-4916-a353-181409a96d42)
 - TOUCHED packages/polyfill/src/surface/read-document.ts @2026-09-21 (session f93872b5-293a-4916-a353-181409a96d42)
+- TOUCHED examples/notebook/app.ts @2026-09-21 (session f93872b5-293a-4916-a353-181409a96d42)
diff --git a/examples/notebook/app.ts b/examples/notebook/app.ts
index 752c82d..6480378 100644
--- a/examples/notebook/app.ts
+++ b/examples/notebook/app.ts
@@ -40,6 +40,8 @@ import {
   useShapeQuery,
   type Nuri,
   type ShapeObservable,
+  type ShapeType,
+  type BaseType,
   // Polyfill-era — ONE call, and it is the whole of what goes away.
   configure,
 } from "@ng-eventually/polyfill";
@@ -115,7 +117,7 @@ const NoteShape = {
       ],
     },
   },
-};
+} satisfies ShapeType<BaseType>;
 
 // --- bootstrap: ONE polyfill-era call --------------------------------------
 //
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a45fda2..30486f4 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -18,6 +18,18 @@ importers:
         specifier: ^5.6.0
         version: 5.9.3
 
+  examples/notebook:
+    dependencies:
+      '@ng-eventually/polyfill':
+        specifier: workspace:*
+        version: link:../../packages/polyfill
+      '@ng-org/orm':
+        specifier: 0.1.2-alpha.21
+        version: 0.1.2-alpha.21
+      '@ng-org/web':
+        specifier: 0.1.2-alpha.14
+        version: 0.1.2-alpha.14
+
   packages/ng-e2e-helpers:
     devDependencies:
       '@ng-org/web':
diff --git a/pnpm-workspace.yaml b/pnpm-workspace.yaml
index dee51e9..89723f9 100644
--- a/pnpm-workspace.yaml
+++ b/pnpm-workspace.yaml
@@ -1,2 +1,3 @@
 packages:
   - "packages/*"
+  - "examples/*"