diff --git a/.github/actions/prepare-nodemodules/action.yml b/.github/actions/prepare-nodemodules/action.yml
new file mode 100644
index 0000000..a8804d4
--- /dev/null
+++ b/.github/actions/prepare-nodemodules/action.yml
@@ -0,0 +1,31 @@
+name: Prepare node_modules
+
+description: Install Dependencies using Bun. If cache hit, do nothing.
+
+inputs:
+  root:
+    description: |-
+      An absolute path to the directory where contains package.json.
+      Required
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - uses: actions/cache@v4
+      id: cache
+      with:
+        path: |
+          ${{ inputs.root }}/node_modules
+          ${{ inputs.root }}/.next/cache
+        key: ${{ runner.os }}-bun-cache-${{ hashFiles('**/bun.lockb') }}
+        restore-keys: ${{ runner.os }}-bun-cache-
+    - uses: oven-sh/setup-bun@v1
+      if: steps.cache.outputs.cache-hit != 'true'
+      with:
+        bun-version: latest
+    - name: Install dependencies
+      shell: bash
+      if: steps.cache.outputs.cache-hit != 'true'
+      working-directory: ${{ inputs.root }}
+      run: bun install
diff --git a/.github/workflows/build-app.yml b/.github/workflows/build-app.yml
new file mode 100644
index 0000000..a461aa7
--- /dev/null
+++ b/.github/workflows/build-app.yml
@@ -0,0 +1,33 @@
+name: build-app
+
+on:
+  pull_request:
+    branches:
+      - develop
+      - main
+    paths:
+      - .github/workflows/build-app.yml
+      - "typing-app/**"
+  workflow_dispatch:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+defaults:
+  run:
+    working-directory: typing-app
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@v4
+      - uses: ./.github/actions/prepare-nodemodules
+        with:
+          root: ${{ github.workspace }}/typing-app
+      - name: Build Next.js Project
+        run: npm run build