diff --git a/src/bindgen/typescript-resources/demo-index.html b/src/bindgen/typescript-resources/demo-index.html
index 9686cbfc4..293bb5f05 100644
--- a/src/bindgen/typescript-resources/demo-index.html
+++ b/src/bindgen/typescript-resources/demo-index.html
@@ -2,15 +2,15 @@
 <html lang="en">
   <head>
     <meta charset="UTF-8" />
-    <link rel="icon" type="image/svg+xml" href="/demo/logo.svg" />
-    <link rel="stylesheet" href="/demo/style.css" />
+    <link rel="icon" type="image/svg+xml" href="./logo.svg" />
+    <link rel="stylesheet" href="./style.css" />
     <meta name="viewport" content="width=device-width, initial-scale=1.0" />
     <title><bindgenPackageName></title>
   </head>
   <body>
     <div id="app">
       <a href="https://wasm.itk.org/" target="_blank">
-        <img src="/demo/logo.svg" class="logo vanilla" alt="ITK Wasm logo" />
+        <img src="./logo.svg" class="logo vanilla" alt="ITK Wasm logo" />
       </a>
       <h1><bindgenPackageName></h1>
         package
@@ -25,6 +25,6 @@ <h2>functions</h2>
       </p>
     </div>
 
-    <script type="module" src="/demo/app.js"></script>
+    <script type="module" src="./app.ts"></script>
   </body>
 </html>
diff --git a/src/bindgen/typescript-resources/demo.js b/src/bindgen/typescript-resources/demo.ts
similarity index 84%
rename from src/bindgen/typescript-resources/demo.js
rename to src/bindgen/typescript-resources/demo.ts
index fabf60190..4f91f5c2b 100644
--- a/src/bindgen/typescript-resources/demo.js
+++ b/src/bindgen/typescript-resources/demo.ts
@@ -1,4 +1,4 @@
-import * as <bindgenPackageNameCamelCase> from '../<bindgenPackageName>.js'
+import * as <bindgenPackageNameCamelCase> from '../../dist/bundles/<bindgenPackageName>.js'
 <bindgenPackageNameCamelCase>.setPipelinesBaseUrl('/pipelines')
 
 const packageFunctions = []
diff --git a/src/bindgen/typescript-resources/template.package.json b/src/bindgen/typescript-resources/template.package.json
index 3fa0f5503..251c01442 100644
--- a/src/bindgen/typescript-resources/template.package.json
+++ b/src/bindgen/typescript-resources/template.package.json
@@ -16,8 +16,8 @@
     "start": "vite -c build/vite.config.js",
     "test": "echo \"Error: no test specified\" && exit 1",
     "build": "npm run build:tsc && npm run build:node && npm run build:browser && npm run build:demo",
-    "build:node": "rollup -c ./rollup.node.config.js",
-    "build:browser": "rollup -c ./rollup.browser.config.js",
+    "build:node": "rollup -c ./build/rollup.node.config.js",
+    "build:browser": "rollup -c ./build/rollup.browser.config.js",
     "build:tsc": "tsc --pretty",
     "build:demo": "vite -c build/vite.config.js build"
   },
@@ -30,7 +30,7 @@
   "author": "",
   "license": "Apache-2.0",
   "dependencies": {
-    "itk-wasm": "^1.0.0-b.65"
+    "itk-wasm": "^1.0.0-b.72"
   },
   "devDependencies": {
     "@rollup/plugin-commonjs": "^24.0.0",
@@ -42,6 +42,7 @@
     "rollup-plugin-copy": "^3.4.0",
     "rollup-plugin-ignore": "^1.0.10",
     "rollup-plugin-polyfill-node": "^0.11.0",
+    "tslib": "^2.5.0",
     "typescript": "^4.9.4",
     "vite": "^4.0.4",
     "vite-plugin-static-copy": "^0.13.0"
diff --git a/src/bindgen/typescript.js b/src/bindgen/typescript.js
index 276b888d1..8cd80488c 100644
--- a/src/bindgen/typescript.js
+++ b/src/bindgen/typescript.js
@@ -145,7 +145,7 @@ function typescriptBindings(outputDir, buildDir, wasmBinaries, options, forNode=
 
     const demoPath = path.join(outputDir, 'test', 'browser', 'app.ts')
     if (!fs.existsSync(demoPath)) {
-      let demoContent = fs.readFileSync(bindgenResource('demo.js'), { encoding: 'utf8', flag: 'r' })
+      let demoContent = fs.readFileSync(bindgenResource('demo.ts'), { encoding: 'utf8', flag: 'r' })
       demoContent = demoContent.replaceAll('<bindgenPackageName>', options.packageName)
       demoContent = demoContent.replaceAll('<bindgenPackageNameCamelCase>', camelCase(packageName))
       fs.writeFileSync(demoPath, demoContent)
