diff --git a/.github/actions/cache-build-paths/action.yml b/.github/actions/cache-build-paths/action.yml
new file mode 100644
index 0000000..8671b95
--- /dev/null
+++ b/.github/actions/cache-build-paths/action.yml
@@ -0,0 +1,17 @@
+name: 'Cache Build'
+description: 'Cache build paths'
+inputs:
+  key:
+    description: 'Cache key'
+    required: true
+runs:
+  using: 'composite'
+  steps:
+    - name: Cache build artifacts
+      uses: actions/cache@v3
+      with:
+        path: |
+          app/build
+        key: ${{ inputs.key }}
+        restore-keys: |
+          ${{ inputs.key }}
diff --git a/.github/workflows/ktlint.yml b/.github/workflows/ktlint.yml
new file mode 100644
index 0000000..6448ddc
--- /dev/null
+++ b/.github/workflows/ktlint.yml
@@ -0,0 +1,31 @@
+name: Kotlin-Linter
+
+on:
+  pull_request:
+
+jobs:
+  ktlint:
+    runs-on: macos-latest
+    steps:
+      - name: Get changed files
+        id: changes
+        run: |
+          URL="https://api.github.com/repos/${{ github.repository }}/pulls/${{ github.event.pull_request.number }}/files"
+          RESPONSE=$(curl -s -X GET -G $URL --header 'authorization: Bearer ${{ secrets.GITHUB_TOKEN }}')
+          CHANGED_KOTLIN_FILES=$(echo $RESPONSE | jq -r '.[] | .filename' | grep -E "\.kt$" | tr \'\\n\' ' ' | sed 's/^[ \t]*//;s/[ \t]*$//')
+          echo "Changed Kotlin files: ${CHANGED_KOTLIN_FILES}"
+          echo "changed_kotlin_files=${CHANGED_KOTLIN_FILES}" >> $GITHUB_ENV
+
+      - name: "checkout"
+        if: env.changed_kotlin_files != ''
+        uses: actions/checkout@v4
+
+      - name: Install ktlint
+        if: env.changed_kotlin_files != ''
+        run: |
+          curl -sSLO https://github.com/pinterest/ktlint/releases/download/0.50.0/ktlint && chmod a+x ktlint && sudo mv ktlint /usr/local/bin/
+
+      - name: run ktlint
+        if: env.changed_kotlin_files != ''
+        run: |
+          ktlint . '!**/build/**'
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
new file mode 100644
index 0000000..a732a3e
--- /dev/null
+++ b/.github/workflows/test.yml
@@ -0,0 +1,63 @@
+name: Android CI
+
+env:
+  cache-name: android-gradle
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+
+jobs:
+  setup:
+    runs-on: macos-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Cache build artifacts
+        uses: ./.github/actions/cache-build-paths
+        with:
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ github.sha }}
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Assemble with Gradle
+        run: ./gradlew jar
+
+  unit-tests:
+    needs: setup
+
+    runs-on: macos-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: set up JDK 17
+        uses: actions/setup-java@v3
+        with:
+          java-version: '17'
+          distribution: 'adopt'
+          cache: gradle
+
+      - name: Cache build artifacts
+        uses: ./.github/actions/cache-build-paths
+        with:
+          key: ${{ runner.os }}-build-${{ env.cache-name }}-${{ github.sha }}
+
+      - name: Grant execute permission for gradlew
+        run: chmod +x gradlew
+
+      - name: Run unit tests
+        run: ./gradlew test
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 03b7e5c..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-language: java
-
-before_cache:
-  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
-
-directories:
-  - $HOME/.gradle/caches/
-  - $HOME/.gradle/wrapper/
-
-jdk:
-  - openjdk11
-
-notifications:
-  email:
-    - eranbou@gmail.com
-
-script:
-- ./gradlew ktlintCheck clean assemble test