diff --git a/.github/workflows/github-actions-demo.yml b/.github/workflows/github-actions-demo.yml
new file mode 100644
index 0000000..e0c814d
--- /dev/null
+++ b/.github/workflows/github-actions-demo.yml
@@ -0,0 +1,23 @@
+name: GitHub Actions Demo
+run-name: ${{ github.actor }} is testing out GitHub Actions 🚀
+on:
+  pull_request:
+    paths:
+      - 'desktop-app/**.ts'
+jobs:
+  Explore-GitHub-Actions:
+    runs-on: ubuntu-latest
+    steps:
+      - run: echo "🎉 The job was automatically triggered by a ${{ github.event_name }} event."
+      - run: echo "🐧 This job is now running on a ${{ runner.os }} server hosted by GitHub!"
+      - run: echo "🔎 The name of your branch is ${{ github.ref }} and your repository is ${{ github.repository }}."
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: '20.11.1'
+          cache: 'npm'
+          cache-dependency-path: 'desktop-app/package-lock.json'
+      - run: cd desktop-app && npm install
+      - run: cd desktop-app && npm test
+      - run: echo "🍏 This job's status is really ${{ job.status }}."
diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..13566b8
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..639900d
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..e4d3c74
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/github-actions-kata.iml" filepath="$PROJECT_DIR$/github-actions-kata.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/desktop-app/src/App.css b/desktop-app/src/App.css
index e69de29..8989443 100644
--- a/desktop-app/src/App.css
+++ b/desktop-app/src/App.css
@@ -0,0 +1,4 @@
+p {
+    color: green;
+    text-align: center;
+}
diff --git a/desktop-app/src/utils/index.ts b/desktop-app/src/utils/index.ts
index e168c95..81caad7 100644
--- a/desktop-app/src/utils/index.ts
+++ b/desktop-app/src/utils/index.ts
@@ -1,4 +1,3 @@
-// @ts-ignore
 export function sum(a: number, b: number, c: number | undefined = undefined) {
-  return a + b;
+  return a + b + (c ?? 0);
 }
diff --git a/github-actions-kata.iml b/github-actions-kata.iml
new file mode 100644
index 0000000..8021953
--- /dev/null
+++ b/github-actions-kata.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/templates/workflow-template.yaml b/templates/workflow-template.yaml
index ea70802..6db821a 100644
--- a/templates/workflow-template.yaml
+++ b/templates/workflow-template.yaml
@@ -4,4 +4,4 @@ jobs:
   example-job:
     runs-on: # system - https://docs.github.com/en/actions/using-github-hosted-runners/about-github-hosted-runners/about-github-hosted-runners#standard-github-hosted-runners-for-public-repositories
     steps:
-      - run: echo "Hello, World!"
+      - run: echo "Hello, World2!"