diff --git a/package-lock.json b/package-lock.json
index 860ddb2..0f75f75 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -22,7 +22,8 @@
         "examples/yearbook",
         "examples/scratchpad",
         "examples/utility-belt",
-        "examples/strictly-speaking"
+        "examples/strictly-speaking",
+        "examples/button-factory"
       ],
       "devDependencies": {
         "prettier": "^3.3.3",
@@ -66,6 +67,19 @@
         "vitest": "^2.1.1"
       }
     },
+    "examples/button-factory": {
+      "version": "1.0.0",
+      "license": "MIT",
+      "dependencies": {
+        "lit": "^3.2.0",
+        "uuid": "^10.0.0"
+      },
+      "devDependencies": {
+        "@vitest/ui": "^2.1.1",
+        "vite": "^5.4.5",
+        "vitest": "^2.1.1"
+      }
+    },
     "examples/calculator": {
       "name": "calculator-example",
       "version": "1.0.0",
@@ -201,6 +215,7 @@
     },
     "examples/yearbook": {
       "version": "1.0.0",
+      "extraneous": true,
       "license": "MIT",
       "dependencies": {
         "uuid": "^10.0.0"
@@ -1157,6 +1172,21 @@
         "@jridgewell/sourcemap-codec": "^1.4.14"
       }
     },
+    "node_modules/@lit-labs/ssr-dom-shim": {
+      "version": "1.2.1",
+      "resolved": "https://registry.npmjs.org/@lit-labs/ssr-dom-shim/-/ssr-dom-shim-1.2.1.tgz",
+      "integrity": "sha512-wx4aBmgeGvFmOKucFKY+8VFJSYZxs9poN3SDNQFF6lT6NrQUnHiPB2PWz2sc4ieEcAaYYzN+1uWahEeTq2aRIQ==",
+      "license": "BSD-3-Clause"
+    },
+    "node_modules/@lit/reactive-element": {
+      "version": "2.0.4",
+      "resolved": "https://registry.npmjs.org/@lit/reactive-element/-/reactive-element-2.0.4.tgz",
+      "integrity": "sha512-GFn91inaUa2oHLak8awSIigYz0cU0Payr1rcFsrkf5OJ5eSPxElyZfKh0f2p9FsTiZWXQdWGJeXZICEfXXYSXQ==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@lit-labs/ssr-dom-shim": "^1.2.0"
+      }
+    },
     "node_modules/@nodelib/fs.scandir": {
       "version": "2.1.5",
       "resolved": "https://registry.npmjs.org/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz",
@@ -1882,6 +1912,12 @@
         "@types/jest": "*"
       }
     },
+    "node_modules/@types/trusted-types": {
+      "version": "2.0.7",
+      "resolved": "https://registry.npmjs.org/@types/trusted-types/-/trusted-types-2.0.7.tgz",
+      "integrity": "sha512-ScaPdn1dQczgbl0QFTeTOmVHFULt394XJgOQNoyVhZ6r2vLnMLJfBPd53SB52T/3G36VI1/g2MZaX0cwDuXsfw==",
+      "license": "MIT"
+    },
     "node_modules/@types/uuid": {
       "version": "10.0.0",
       "resolved": "https://registry.npmjs.org/@types/uuid/-/uuid-10.0.0.tgz",
@@ -2403,6 +2439,10 @@
       "optional": true,
       "peer": true
     },
+    "node_modules/button-factory": {
+      "resolved": "examples/button-factory",
+      "link": true
+    },
     "node_modules/bytes": {
       "version": "3.1.2",
       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.2.tgz",
@@ -4171,6 +4211,37 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/lit": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/lit/-/lit-3.2.0.tgz",
+      "integrity": "sha512-s6tI33Lf6VpDu7u4YqsSX78D28bYQulM+VAzsGch4fx2H0eLZnJsUBsPWmGYSGoKDNbjtRv02rio1o+UdPVwvw==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@lit/reactive-element": "^2.0.4",
+        "lit-element": "^4.1.0",
+        "lit-html": "^3.2.0"
+      }
+    },
+    "node_modules/lit-element": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/lit-element/-/lit-element-4.1.0.tgz",
+      "integrity": "sha512-gSejRUQJuMQjV2Z59KAS/D4iElUhwKpIyJvZ9w+DIagIQjfJnhR20h2Q5ddpzXGS+fF0tMZ/xEYGMnKmaI/iww==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@lit-labs/ssr-dom-shim": "^1.2.0",
+        "@lit/reactive-element": "^2.0.4",
+        "lit-html": "^3.2.0"
+      }
+    },
+    "node_modules/lit-html": {
+      "version": "3.2.0",
+      "resolved": "https://registry.npmjs.org/lit-html/-/lit-html-3.2.0.tgz",
+      "integrity": "sha512-pwT/HwoxqI9FggTrYVarkBKFN9MlTUpLrDHubTmW4SrkL3kkqW5gxwbxMMUnbbRHBC0WTZnYHcjDSCM559VyfA==",
+      "license": "BSD-3-Clause",
+      "dependencies": {
+        "@types/trusted-types": "^2.0.2"
+      }
+    },
     "node_modules/lodash": {
       "version": "4.17.21",
       "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
@@ -6657,10 +6728,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/yearbook": {
-      "resolved": "examples/yearbook",
-      "link": true
-    },
     "packages/css-configuration": {
       "version": "1.0.0",
       "extraneous": true,
diff --git a/package.json b/package.json
index 0e3310e..3a66c83 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,8 @@
     "examples/yearbook",
     "examples/scratchpad",
     "examples/utility-belt",
-    "examples/strictly-speaking"
+    "examples/strictly-speaking",
+    "examples/button-factory"
   ],
   "devDependencies": {
     "prettier": "^3.3.3",