diff --git a/packages/protobuf-demo/package.json b/packages/protobuf-demo/package.json
index e5d33de207..cdb1a47860 100644
--- a/packages/protobuf-demo/package.json
+++ b/packages/protobuf-demo/package.json
@@ -32,7 +32,10 @@
     "test-chrome": "yarn pack-web && karma start --single-run --browsers ChromeHeadless",
     "test": "yarn build-or-skip && yarn test-node",
     "pack-web": "yarn build-or-skip && webpack --mode development --config webpack.web.config.js",
-    "get-proto": "./scripts/get-proto.sh"
+    "get-proto": "./scripts/get-proto.sh",
+    "prepack-proto": "mkdir -p src/generated",
+    "pack-proto": "pbjs -t static-module -w commonjs -o src/generated/codecimpl.js ./proto/**/*.proto",
+    "define-proto": "pbts src/generated/codecimpl.js -o src/generated/codecimpl.d.ts"
   },
   "devDependencies": {
     "protobufjs": "^6.9.0"