diff --git a/.github/workflows/moodle-ci.yml b/.github/workflows/moodle-ci.yml
new file mode 100644
index 0000000..670a2fb
--- /dev/null
+++ b/.github/workflows/moodle-ci.yml
@@ -0,0 +1,113 @@
+name: Moodle Plugin CI
+
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-20.04
+
+    services:
+      postgres:
+        image: postgres:13
+        env:
+          POSTGRES_USER: 'postgres'
+          POSTGRES_HOST_AUTH_METHOD: 'trust'
+        ports:
+          - 5432:5432
+        options: --health-cmd pg_isready --health-interval 10s --health-timeout 5s --health-retries 3
+      mariadb:
+        image: mariadb:10.6.7
+        env:
+          MYSQL_USER: 'root'
+          MYSQL_ALLOW_EMPTY_PASSWORD: "true"
+        ports:
+          - 3306:3306
+        options: --health-cmd="mysqladmin ping" --health-interval 10s --health-timeout 5s --health-retries 3
+
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - php: '8.1'
+            moodle-branch: 'master'
+            database: 'pgsql'
+          - php: '8.1'
+            moodle-branch: 'MOODLE_403_STABLE'
+            database: 'pgsql'
+          - php: '8.0'
+            moodle-branch: 'MOODLE_402_STABLE'
+            database: 'mariadb'
+          - php: '8.0'
+            moodle-branch: 'MOODLE_401_STABLE'
+            database: 'mariadb'
+
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v2
+        with:
+          path: plugin
+
+      - name: Setup PHP ${{ matrix.php }}
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php }}
+          ini-values: max_input_vars=6000
+          coverage: none
+
+      - name: Initialise moodle-plugin-ci
+        run: |
+          composer create-project -n --no-dev --prefer-dist moodlehq/moodle-plugin-ci ci ^3
+          echo $(cd ci/bin; pwd) >> $GITHUB_PATH
+          echo $(cd ci/vendor/bin; pwd) >> $GITHUB_PATH
+          sudo locale-gen en_AU.UTF-8
+
+      - name: Install moodle-plugin-ci
+        run: |
+          moodle-plugin-ci install --plugin ./plugin --db-host=127.0.0.1
+        env:
+          DB: ${{ matrix.database }}
+          MOODLE_BRANCH: ${{ matrix.moodle-branch }}
+
+      - name: PHP Lint
+        if: ${{ always() }}
+        run: moodle-plugin-ci phplint
+
+      - name: PHP Copy/Paste Detector
+        if: ${{ always() }}
+        run: moodle-plugin-ci phpcpd
+
+      - name: PHP Mess Detector
+        if: ${{ always() }}
+        run: moodle-plugin-ci phpmd
+
+      - name: Moodle Code Checker
+        if: ${{ always() }}
+        run: moodle-plugin-ci codechecker --max-warnings 0 
+
+      - name: Moodle PHPDoc Checker
+        if: ${{ always() }}
+        run: moodle-plugin-ci phpdoc
+
+      - name: Validating
+        if: ${{ always() }}
+        run: moodle-plugin-ci validate
+
+      - name: Check upgrade savepoints
+        if: ${{ always() }}
+        run: moodle-plugin-ci savepoints
+
+      - name: Mustache Lint
+        if: ${{ always() }}
+        run: moodle-plugin-ci mustache
+
+      - name: Grunt
+        if: ${{ matrix.moodle-branch == 'MOODLE_403_STABLE' }}
+        run: moodle-plugin-ci grunt
+
+      - name: PHPUnit tests
+        if: ${{ always() }}
+        run: moodle-plugin-ci phpunit
+
+      - name: Behat features
+        if: ${{ always() }}
+        run: moodle-plugin-ci behat --profile chrome
diff --git a/lib.php b/lib.php
index 6d1b608..8f37695 100644
--- a/lib.php
+++ b/lib.php
@@ -147,7 +147,7 @@ protected function get_resource(int $source) {
     public function get_link($source) {
         global $OUTPUT;
 
-        $resource = $this->get_resource($reference);
+        $resource = $this->get_resource($source);
         return $resource->video_url($OUTPUT);
     }