diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index 4617343647410..3d72752a23a88 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -360,6 +360,25 @@ jobs:
           echo opcache.enable_cli=1 >> /etc/php.d/opcache.ini
           echo opcache.protect_memory=1 >> /etc/php.d/opcache.ini
           echo opcache.jit_buffer_size=1G >> /etc/php.d/opcache.ini
+      - name: Test AMPHP
+        if: matrix.branch.ref != 'PHP-8.0'
+        run: |
+          repositories="amp cache dns file http parallel parser pipeline process serialization socket sync websocket-client websocket-server"
+          X=0
+          for repository in $repositories; do
+            printf "Testing amp/%s\n" "$repository"
+            git clone "https://github.com/amphp/$repository.git" "amphp-$repository" --depth 1
+            cd "amphp-$repository"
+            git rev-parse HEAD
+            php /usr/bin/composer install --no-progress --ignore-platform-reqs
+            export ASAN_OPTIONS=exitcode=139
+            vendor/bin/phpunit || EXIT_CODE=$?
+            if [ ${EXIT_CODE:-0} -gt 128 ]; then
+              X=1;
+            fi
+            cd ..
+          done
+          exit $X
       - name: Test Laravel
         if: matrix.branch.ref != 'PHP-8.0'
         run: |
@@ -371,7 +390,38 @@ jobs:
           php -r '$c = file_get_contents("tests/Filesystem/FilesystemTest.php"); $c = str_replace("*/\n    public function testSharedGet()", "* @group skip\n     */\n    public function testSharedGet()", $c); file_put_contents("tests/Filesystem/FilesystemTest.php", $c);'
           export ASAN_OPTIONS=exitcode=139
           php vendor/bin/phpunit --exclude-group skip || EXIT_CODE=$?
-          if [ $EXIT_CODE -gt 128 ]; then
+          if [ ${EXIT_CODE:-0} -gt 128 ]; then
+            exit 1
+          fi
+      - name: Test ReactPHP
+        if: matrix.branch.ref != 'PHP-8.0'
+        run: |
+          repositories="async cache child-process datagram dns event-loop promise promise-stream promise-timer stream"
+          X=0
+          for repository in $repositories; do
+            printf "Testing reactphp/%s\n" "$repository"
+            git clone "https://github.com/reactphp/$repository.git" "reactphp-$repository" --depth 1
+            cd "reactphp-$repository"
+            git rev-parse HEAD
+            php /usr/bin/composer install --no-progress --ignore-platform-reqs
+            export ASAN_OPTIONS=exitcode=139
+            vendor/bin/phpunit || EXIT_CODE=$?
+            if [ $[EXIT_CODE:-0} -gt 128 ]; then
+              X=1;
+            fi
+            cd ..
+          done
+          exit $X
+      - name: Test Revolt PHP
+        if: matrix.branch.ref != 'PHP-8.0'
+        run: |
+          git clone https://github.com/revoltphp/event-loop.git --depth=1
+          cd event-loop
+          git rev-parse HEAD
+          php /usr/bin/composer install --no-progress --ignore-platform-reqs
+          export ASAN_OPTIONS=exitcode=139
+          vendor/bin/phpunit || EXIT_CODE=$?
+          if [ ${EXIT_CODE:-0} -gt 128 ]; then
             exit 1
           fi
       - name: Test Symfony
@@ -391,7 +441,7 @@ jobs:
           X=0
           for component in $(find src/Symfony -mindepth 2 -type f -name phpunit.xml.dist -printf '%h\n'); do
             php ./phpunit $component --exclude-group tty,benchmark,intl-data,transient --exclude-group skip || EXIT_CODE=$?
-            if [ $EXIT_CODE -gt 128 ]; then
+            if [ ${EXIT_CODE:-0} -gt 128 ]; then
               X=1;
             fi
           done
@@ -405,7 +455,7 @@ jobs:
           export ASAN_OPTIONS=exitcode=139
           php /usr/bin/composer install --no-progress --ignore-platform-reqs
           php ./phpunit || EXIT_CODE=$?
-          if [ $EXIT_CODE -gt 128 ]; then
+          if [ ${EXIT_CODE:-0} -gt 128 ]; then
             exit 1
           fi
       - name: 'Symfony Preloading'