diff --git a/.github/workflows/richnav-all.yml b/.github/workflows/richnav-all.yml
index fe09145..a7bde27 100644
--- a/.github/workflows/richnav-all.yml
+++ b/.github/workflows/richnav-all.yml
@@ -35,9 +35,19 @@ jobs:
       with:
         node-version: 12.x
 
+    # **** Please update to point to the location where your node dependencies are installed **** #
+    - uses: actions/cache@v2
+      id: caching-stage
+      name: Cache dependencies
+      with:
+        path: node_modules
+        key: ${{ runner.os }}-dependencies-${{ hashfiles('typescript/yarn.lock') }}
+        restore-keys: ${{ runner.os }}-dependencies-
+
     # **** Please update, at least, the working directory below. You may also want to use npm install instead **** #
     - run: yarn
       working-directory: typescript
+      if: steps.caching-stage.outputs.cache-hit != 'true'
     
     # **** If you use NPM to install packages, please uncomment this task and delete the yarn task **** #
     # - name: npm install
diff --git a/.github/workflows/richnav-typescript.yml b/.github/workflows/richnav-typescript.yml
index ba4aaa6..590779c 100644
--- a/.github/workflows/richnav-typescript.yml
+++ b/.github/workflows/richnav-typescript.yml
@@ -26,8 +26,19 @@ jobs:
       with:
         node-version: ${{ matrix.node-version }}
 
+    # **** Please update to point to the location where your node dependencies are installed **** #
+    - uses: actions/cache@v2
+      id: caching-stage
+      name: Cache dependencies
+      with:
+        path: node_modules
+        key: ${{ runner.os }}-dependencies-${{ hashfiles('typescript/yarn.lock') }}
+        restore-keys: ${{ runner.os }}-dependencies-
+
+    # **** Please update the working-directory to the location where your package.json file resides **** #
     - run: yarn
       working-directory: typescript
+      if: steps.caching-stage.outputs.cache-hit != 'true'
     
     - uses: microsoft/RichCodeNavIndexer@v0.1
       with: 
diff --git a/typescript/package.json b/typescript/package.json
index 405365a..7b5361b 100644
--- a/typescript/package.json
+++ b/typescript/package.json
@@ -6,5 +6,9 @@
     "license": "MIT",
     "scripts": {
         "build": "tsc -p ./"
+    },
+    "dependencies": {
+        "@types/node": "^14.11.3",
+        "add-two-number": "^0.2.0"
     }
-}
\ No newline at end of file
+}
diff --git a/typescript/src/GameObject.ts b/typescript/src/GameObject.ts
index 3a27d76..f76e0f9 100644
--- a/typescript/src/GameObject.ts
+++ b/typescript/src/GameObject.ts
@@ -1,5 +1,6 @@
 import Drawable from './Drawable'
 import Interactive from './Interactive'
+const add: any = require('add-two-number');
 
 export default class GameObject implements Drawable, Interactive {
     posX: number;
@@ -12,6 +13,7 @@ export default class GameObject implements Drawable, Interactive {
 
     interact(): void {
         console.log("Interacting with GameObject");
+        console.log(`Adding two numbers: ${add(this.posX, this.posY)}`);
     }
 
     draw(): void {
diff --git a/typescript/yarn.lock b/typescript/yarn.lock
index fb57ccd..77e9bd2 100644
--- a/typescript/yarn.lock
+++ b/typescript/yarn.lock
@@ -2,3 +2,7 @@
 # yarn lockfile v1
 
 
+add-two-number@^0.2.0:
+  version "0.2.0"
+  resolved "https://registry.yarnpkg.com/add-two-number/-/add-two-number-0.2.0.tgz#f21e52b3a328f3551b247489b4b0351465ef363e"
+  integrity sha512-zB+QIdul0cHNXAj1xVAhzhk8WQ8JvLYlp1L3kwZr3zIIgdV+U1kp4DkRJRqutvPgDl1jBG9TcbMU3cWgeY9d7w==