diff --git a/.drone.yml b/.drone.yml
deleted file mode 100644
index 9d623588e..000000000
--- a/.drone.yml
+++ /dev/null
@@ -1,131 +0,0 @@
-kind: pipeline
-name: checkers
-steps:
-- name: compatibility
-  image: nextcloudci/php7.3:latest
-  environment:
-    APP_NAME: deck
-    CORE_BRANCH: master
-    DB: sqlite
-  commands:
-    # Pre-setup steps
-    - wget https://raw.githubusercontent.com/nextcloud/travis_ci/master/before_install.sh
-    - bash ./before_install.sh $APP_NAME $CORE_BRANCH $DB
-    - cd ../server
-    # Code checker
-    - ./occ app:check-code $APP_NAME -c strong-comparison
-    - ./occ app:check-code $APP_NAME -c deprecation
-    - cd apps/$APP_NAME/
-- name: syntax-php7.2
-  image: nextcloudci/php7.2:latest
-  environment:
-    APP_NAME: deck
-    CORE_BRANCH: master
-    DB: sqlite
-  commands:
-    - composer install
-    - ./vendor/bin/parallel-lint --exclude ./vendor/ .
-- name: syntax-php7.3
-  image: nextcloudci/php7.3:php7.3-2
-  environment:
-    APP_NAME: deck
-    CORE_BRANCH: master
-    DB: sqlite
-  commands:
-    - composer install
-    - ./vendor/bin/parallel-lint --exclude ./vendor/ .
-- name: syntax-php7.4
-  image: nextcloudci/php7.4:latest
-  environment:
-      APP_NAME: deck
-      CORE_BRANCH: master
-      DB: sqlite
-  commands:
-      - composer install
-      - ./vendor/bin/parallel-lint --exclude ./vendor/ .
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - pull_request
-    - push
----
-kind: pipeline
-name: unit-php7.3
-steps:
-  - name: php7.3
-    image: nextcloudci/php7.3:latest
-    environment:
-      APP_NAME: deck
-      CORE_BRANCH: master
-      DB: sqlite
-    commands:
-      # Pre-setup steps
-      - wget https://raw.githubusercontent.com/nextcloud/travis_ci/master/before_install.sh
-      - bash ./before_install.sh $APP_NAME $CORE_BRANCH $DB
-      - cd ../server/
-      - php occ app:enable deck
-      - cd apps/$APP_NAME
-      - composer install
-      - phpunit -c tests/phpunit.xml --coverage-clover build/php-unit.coverage.xml
-      - phpunit -c tests/phpunit.integration.xml --coverage-clover build/php-integration.coverage.xml
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - pull_request
-    - push
-kind: pipeline
-name: unit-php7.4
-steps:
-  - name: php7.4
-    image: nextcloudci/php7.4:latest
-    environment:
-      APP_NAME: deck
-      CORE_BRANCH: master
-      DB: sqlite
-    commands:
-      # Pre-setup steps
-      - wget https://raw.githubusercontent.com/nextcloud/travis_ci/master/before_install.sh
-      - bash ./before_install.sh $APP_NAME $CORE_BRANCH $DB
-      - cd ../server/
-      - php occ app:enable deck
-      - cd apps/$APP_NAME
-      - composer install
-      - phpunit -c tests/phpunit.xml --coverage-clover build/php-unit.coverage.xml
-      - phpunit -c tests/phpunit.integration.xml --coverage-clover build/php-integration.coverage.xml
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - pull_request
-    - push
----
-kind: pipeline
-name: integration
-steps:
-  - name: integration
-    image: nextcloudci/php7.3:latest
-    environment:
-      APP_NAME: deck
-      CORE_BRANCH: master
-      DB: sqlite
-    commands:
-      # Pre-setup steps
-      - wget https://raw.githubusercontent.com/nextcloud/travis_ci/master/before_install.sh
-      - bash ./before_install.sh $APP_NAME $CORE_BRANCH $DB
-      - cd ../server/
-      - php occ app:enable deck
-      - cd apps/$APP_NAME
-      - cd tests/integration
-      - ./run.sh || true
-trigger:
-  branch:
-    - master
-    - stable*
-  event:
-    - pull_request
-    - push
diff --git a/.github/workflows/app-code-check.yml b/.github/workflows/app-code-check.yml
new file mode 100644
index 000000000..202d78d8c
--- /dev/null
+++ b/.github/workflows/app-code-check.yml
@@ -0,0 +1,55 @@
+name: PHP AppCode Check
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - stable*
+
+env:
+  APP_NAME: deck
+
+jobs:
+  unit-tests:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        php-versions: ['7.4']
+        server-versions: ['master', 'stable18', 'stable19', 'stable20']
+
+    name: AppCode check php${{ matrix.php-versions }}-${{ matrix.server-versions }}
+    steps:
+      - name: Checkout server
+        uses: actions/checkout@v2
+        with:
+          repository: nextcloud/server
+          ref: ${{ matrix.server-versions }}
+
+      - name: Checkout submodules
+        shell: bash
+        run: |
+          auth_header="$(git config --local --get http.https://github.com/.extraheader)"
+          git submodule sync --recursive
+          git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
+
+      - name: Checkout app
+        uses: actions/checkout@v2
+        with:
+          path: apps/${{ env.APP_NAME }}
+
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: phpunit
+          extensions: mbstring, iconv, fileinfo, intl, sqlite, pdo_sqlite
+
+      - name: Checkout app
+        uses: actions/checkout@v2
+        with:
+          path: apps/${{ env.APP_NAME }}
+
+      - name: App code check
+        run: php occ app:check-code ${{ env.APP_NAME }}
diff --git a/.github/workflows/phpunit.yml b/.github/workflows/phpunit.yml
new file mode 100644
index 000000000..53f66078f
--- /dev/null
+++ b/.github/workflows/phpunit.yml
@@ -0,0 +1,215 @@
+name: PHPUnit
+
+on:
+  pull_request:
+  push:
+    branches:
+      - master
+      - stable*
+
+env:
+  APP_NAME: deck
+
+jobs:
+  php:
+    runs-on: ubuntu-latest
+
+    strategy:
+      # do not stop on another job's failure
+      fail-fast: false
+      matrix:
+        php-versions: ['7.4']
+        databases: ['sqlite']
+        server-versions: ['master']
+
+    name: php${{ matrix.php-versions }}-${{ matrix.databases }}-${{ matrix.server-versions }}
+
+    steps:
+      - name: Checkout server
+        uses: actions/checkout@v2
+        with:
+          repository: nextcloud/server
+          ref: ${{ matrix.server-versions }}
+
+      - name: Checkout submodules
+        shell: bash
+        run: |
+          auth_header="$(git config --local --get http.https://github.com/.extraheader)"
+          git submodule sync --recursive
+          git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
+
+      - name: Checkout app
+        uses: actions/checkout@v2
+        with:
+          path: apps/${{ env.APP_NAME }}
+
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: phpunit
+          extensions: mbstring, iconv, fileinfo, intl, sqlite, pdo_sqlite
+          coverage: none
+
+      - name: Set up PHPUnit
+        working-directory: apps/${{ env.APP_NAME }}
+        run: composer i
+
+      - name: Set up Nextcloud
+        env:
+          DB_PORT: 4444
+        run: |
+          mkdir data
+          ./occ maintenance:install --verbose --database=${{ matrix.databases }} --database-name=nextcloud --database-host=127.0.0.1 --database-port=$DB_PORT --database-user=root --database-pass=rootpassword --admin-user admin --admin-pass password
+          ./occ app:enable --force ${{ env.APP_NAME }}
+          php -S localhost:8080 &
+
+      - name: PHPUnit
+        working-directory: apps/${{ env.APP_NAME }}
+        run: ./vendor/phpunit/phpunit/phpunit -c tests/phpunit.xml
+
+      - name: PHPUnit integration
+        working-directory: apps/${{ env.APP_NAME }}
+        run: ./vendor/phpunit/phpunit/phpunit -c tests/phpunit.integration.xml
+
+  mysql:
+    runs-on: ubuntu-latest
+
+    strategy:
+      # do not stop on another job's failure
+      fail-fast: false
+      matrix:
+        php-versions: ['7.3', '7.4']
+        databases: ['mysql']
+        server-versions: ['master']
+
+    name: php${{ matrix.php-versions }}-${{ matrix.databases }}-${{ matrix.server-versions }}
+
+    services:
+      mysql:
+        image: mariadb
+        ports:
+          - 4444:3306/tcp
+        env:
+          MYSQL_ROOT_PASSWORD: rootpassword
+        options: --health-cmd="mysqladmin ping" --health-interval 5s --health-timeout 2s --health-retries 5
+
+    steps:
+      - name: Checkout server
+        uses: actions/checkout@v2
+        with:
+          repository: nextcloud/server
+          ref: ${{ matrix.server-versions }}
+
+      - name: Checkout submodules
+        shell: bash
+        run: |
+          auth_header="$(git config --local --get http.https://github.com/.extraheader)"
+          git submodule sync --recursive
+          git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
+
+      - name: Checkout app
+        uses: actions/checkout@v2
+        with:
+          path: apps/${{ env.APP_NAME }}
+
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: phpunit
+          extensions: mbstring, iconv, fileinfo, intl, mysql, pdo_mysql
+          coverage: none
+
+      - name: Set up PHPUnit
+        working-directory: apps/${{ env.APP_NAME }}
+        run: composer i
+
+      - name: Set up Nextcloud
+        env:
+          DB_PORT: 4444
+        run: |
+          mkdir data
+          ./occ maintenance:install --verbose --database=${{ matrix.databases }} --database-name=nextcloud --database-host=127.0.0.1 --database-port=$DB_PORT --database-user=root --database-pass=rootpassword --admin-user admin --admin-pass password
+          ./occ app:enable --force ${{ env.APP_NAME }}
+          php -S localhost:8080 &
+
+      - name: PHPUnit
+        working-directory: apps/${{ env.APP_NAME }}
+        run: ./vendor/phpunit/phpunit/phpunit -c tests/phpunit.xml
+
+      - name: PHPUnit integration
+        working-directory: apps/${{ env.APP_NAME }}
+        run: ./vendor/phpunit/phpunit/phpunit -c tests/phpunit.integration.xml
+
+  pgsql:
+    runs-on: ubuntu-latest
+
+    strategy:
+      # do not stop on another job's failure
+      fail-fast: false
+      matrix:
+        php-versions: ['7.4']
+        databases: ['pgsql']
+        server-versions: ['master']
+
+    name: php${{ matrix.php-versions }}-${{ matrix.databases }}-${{ matrix.server-versions }}
+
+    services:
+      postgres:
+        image: postgres
+        ports:
+          - 4444:5432/tcp
+        env:
+          POSTGRES_USER: root
+          POSTGRES_PASSWORD: rootpassword
+          POSTGRES_DB: nextcloud
+        options: --health-cmd pg_isready --health-interval 5s --health-timeout 2s --health-retries 5
+
+    steps:
+      - name: Checkout server
+        uses: actions/checkout@v2
+        with:
+          repository: nextcloud/server
+          ref: ${{ matrix.server-versions }}
+
+      - name: Checkout submodules
+        shell: bash
+        run: |
+          auth_header="$(git config --local --get http.https://github.com/.extraheader)"
+          git submodule sync --recursive
+          git -c "http.extraheader=$auth_header" -c protocol.version=2 submodule update --init --force --recursive --depth=1
+
+      - name: Checkout app
+        uses: actions/checkout@v2
+        with:
+          path: apps/${{ env.APP_NAME }}
+
+      - name: Set up php ${{ matrix.php-versions }}
+        uses: shivammathur/setup-php@v1
+        with:
+          php-version: ${{ matrix.php-versions }}
+          tools: phpunit
+          extensions: mbstring, iconv, fileinfo, intl, pgsql, pdo_pgsql
+          coverage: none
+
+      - name: Set up PHPUnit
+        working-directory: apps/${{ env.APP_NAME }}
+        run: composer i
+
+      - name: Set up Nextcloud
+        env:
+          DB_PORT: 4444
+        run: |
+          mkdir data
+          ./occ maintenance:install --verbose --database=${{ matrix.databases }} --database-name=nextcloud --database-host=127.0.0.1 --database-port=$DB_PORT --database-user=root --database-pass=rootpassword --admin-user admin --admin-pass password
+          ./occ app:enable --force ${{ env.APP_NAME }}
+          php -S localhost:8080 &
+
+      - name: PHPUnit
+        working-directory: apps/${{ env.APP_NAME }}
+        run: ./vendor/phpunit/phpunit/phpunit -c tests/phpunit.xml
+
+      - name: PHPUnit integration
+        working-directory: apps/${{ env.APP_NAME }}
+        run: ./vendor/phpunit/phpunit/phpunit -c tests/phpunit.integration.xml
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 1653527da..000000000
--- a/.travis.yml
+++ /dev/null
@@ -1,36 +0,0 @@
-language: php
-services:
-    - mysql
-php:
-    - 7.3
-env:
-    - CORE_BRANCH=master DB=mysql
-
-matrix:
-  include:
-  - php: 7.2
-    env: "DB=sqlite CORE_BRANCH=stable20"
-
-before_install:
-    - export PATH="$PWD/vendor/bin:$PATH"
-    - phpunit --version
-    - wget https://raw.githubusercontent.com/nextcloud/travis_ci/master/before_install.sh
-    - bash ./before_install.sh deck $CORE_BRANCH $DB
-    - cd ../server
-    - ./occ app:enable deck
-
-before_script:
-    - cd apps/deck
-
-script:
-    - composer install
-    - make test-unit
-
-after_success:
-    - bash <(curl -s https://codecov.io/bash)
-
-after_failure:
-    - cat ../../data/nextcloud.log
-
-notifications:
-  email: false
diff --git a/lib/AppInfo/Application.php b/lib/AppInfo/Application.php
index 048dc5b3c..3393e6f98 100644
--- a/lib/AppInfo/Application.php
+++ b/lib/AppInfo/Application.php
@@ -23,7 +23,7 @@
 
 namespace OCA\Deck\AppInfo;
 
-$version = \OC_Util::getVersion()[0];
+$version = \OCP\Util::getVersion()[0];
 if ($version >= 20) {
 	class Application extends Application20 {
 	}
diff --git a/lib/AppInfo/ApplicationLegacy.php b/lib/AppInfo/ApplicationLegacy.php
index 22a3f6ac5..eec44dd4b 100644
--- a/lib/AppInfo/ApplicationLegacy.php
+++ b/lib/AppInfo/ApplicationLegacy.php
@@ -24,7 +24,6 @@
 namespace OCA\Deck\AppInfo;
 
 use Exception;
-use OC_Util;
 use OCA\Deck\Activity\CommentEventHandler;
 use OCA\Deck\Capabilities;
 use OCA\Deck\Collaboration\Resources\ResourceProvider;
@@ -172,7 +171,7 @@ class ApplicationLegacy extends App {
 	}
 
 	protected function registerCollaborationResources(): void {
-		$version = OC_Util::getVersion()[0];
+		$version = \OCP\Util::getVersion()[0];
 		if ($version < 16) {
 			return;
 		}
diff --git a/lib/Service/BoardService.php b/lib/Service/BoardService.php
index 477add264..516ca158a 100644
--- a/lib/Service/BoardService.php
+++ b/lib/Service/BoardService.php
@@ -532,7 +532,7 @@ class BoardService {
 		$this->changeHelper->boardChanged($boardId);
 
 		// TODO: use the dispatched event for this
-		$version = \OC_Util::getVersion()[0];
+		$version = \OCP\Util::getVersion()[0];
 		if ($version >= 16) {
 			try {
 				$resourceProvider = \OC::$server->query(\OCA\Deck\Collaboration\Resources\ResourceProvider::class);
@@ -621,7 +621,7 @@ class BoardService {
 		$this->activityManager->triggerEvent(ActivityManager::DECK_OBJECT_BOARD, $acl, ActivityManager::SUBJECT_BOARD_UNSHARE);
 		$this->changeHelper->boardChanged($acl->getBoardId());
 
-		$version = \OC_Util::getVersion()[0];
+		$version = \OCP\Util::getVersion()[0];
 		if ($version >= 16) {
 			try {
 				$resourceProvider = \OC::$server->query(\OCA\Deck\Collaboration\Resources\ResourceProvider::class);