diff --git a/.gitattributes b/.gitattributes
index abb424b7..543578eb 100644
--- a/.gitattributes
+++ b/.gitattributes
@@ -1,6 +1,12 @@
+export/ export-ignore
 layers/ export-ignore
+src/ export-ignore
 .gitattributes export-ignore
 .gitignore export-ignore
+.phpcs.xml.dist export-ignore
+.prettyci.composer.json export-ignore
 .travis.yml export-ignore
+bref-extra export-ignore
+bchecksums.json export-ignore
 Makefile export-ignore
 
diff --git a/.phpcs.xml.dist b/.phpcs.xml.dist
index c80af217..c30132ab 100644
--- a/.phpcs.xml.dist
+++ b/.phpcs.xml.dist
@@ -7,13 +7,8 @@
     <!-- Show sniff names -->
     <arg value="s"/>
 
-    <file>bref</file>
+    <file>bref-extra</file>
     <file>src</file>
-    <file>tests</file>
-    <exclude-pattern>tests/Bridge/Symfony/var</exclude-pattern>
-    <exclude-pattern>tests/Bridge/Symfony/cache</exclude-pattern>
-    <exclude-pattern>tests/Bridge/Symfony/logs</exclude-pattern>
-    <exclude-pattern>tests/Bridge/Laravel/bootstrap/cache</exclude-pattern>
 
     <!-- Import the Doctrine coding standard -->
     <rule ref="Doctrine"/>
diff --git a/.travis.yml b/.travis.yml
index 8d647930..464c73d2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-language: php
+language: minimal
 
 notifications:
   email:
@@ -8,16 +8,31 @@ services:
   - docker
 
 env:
-  - LAYER=amqp PHP=72
-  - LAYER=amqp PHP=73
-  - LAYER=amqp PHP=74
-  - LAYER=blackfire PHP=72
-  - LAYER=blackfire PHP=73
-  - LAYER=blackfire PHP=74
-  - LAYER=xdebug PHP=72
-  - LAYER=xdebug PHP=73
-  - LAYER=xdebug PHP=74
+  - LAYER=amqp PHP="72 73 74"
+  - LAYER=blackfire PHP="72 73 74"
+  - LAYER=xdebug PHP="72 73 74"
+
+before_install:
+  - |
+    # tfold is a helper to create folded reports (From Symfony)
+    tfold () {
+        local title="$1"
+        local fold=$(echo $title | sed -r 's/[^-_A-Za-z0-9]+/./g')
+        shift
+        echo -e "travis_fold:start:$fold"
+        echo -e "\\e[1;34m$title\\e[0m"
+        bash -xc "$*" 2>&1
+        local ok=$?
+        (exit $ok) &&
+            echo -e "\\e[32mOK\\e[0m $title\\n\\ntravis_fold:end:$fold" ||
+            echo -e "\\e[41mKO\\e[0m $title\\n"
+        (exit $ok)
+    }
+    export -f tfold
 
 script:
   - cd layers/$LAYER
-  - docker build --build-arg PHP_VERSION=$PHP .
+  - |
+    for php_version in $PHP; do
+      tfold "Build $php_version" docker build --build-arg PHP_VERSION=${php_version} .
+    done
diff --git a/Readme.md b/Readme.md
index 9b691d74..02494bfd 100644
--- a/Readme.md
+++ b/Readme.md
@@ -17,7 +17,7 @@ provider:
 
 plugins:
     - ./vendor/bref/bref
-    - ./vendor/bref/extra-layers # <--- Add the extra Serverless plugin
+    - ./vendor/bref/extra-layers # <----- Add the extra Serverless plugin
 
 functions:
     console:
@@ -28,7 +28,7 @@ functions:
             - ${bref:layer.console}
 ```
 
-```
+```ini
 ;php/conf.d/php.ini
 extension=/opt/bref-extra/amqp.so
 ```
@@ -45,7 +45,6 @@ extension=/opt/bref-extra/amqp.so
 
 ```
 make publish
-make list
 git add checksums.json layers.json
 git commit -m "New version of layers"
 git push
diff --git a/composer.json b/composer.json
index 65f751dc..af6c4405 100644
--- a/composer.json
+++ b/composer.json
@@ -1,5 +1,6 @@
 {
-    "name": "bref/extra-layers",
+    "name": "bref/extra-php-extensions",
+    "description": "Extra PHP extensions for your lambda application.",
     "type": "library",
     "require-dev": {
         "symfony/process": "^5.0",
diff --git a/src/Application.php b/src/Application.php
index e86a6be3..206a0c12 100644
--- a/src/Application.php
+++ b/src/Application.php
@@ -1,33 +1,32 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra;
 
 use Bref\Extra\Aws\LayerProvider;
 use Bref\Extra\Aws\LayerPublisher;
-use Bref\Extra\Service\RegionProvider;
 use Bref\Extra\Command\ListCommand;
 use Bref\Extra\Command\PublishCommand;
+use Bref\Extra\Service\RegionProvider;
+use DI\Container;
 use DI\ContainerBuilder;
 use Psr\Container\ContainerInterface;
 
 class Application extends \Silly\Edition\PhpDi\Application
 {
-    protected function createContainer()
+    protected function createContainer(): Container
     {
-        $builder = new ContainerBuilder();
+        $builder = new ContainerBuilder;
         $awsId = getenv('AWS_ID');
         $awsProfile = getenv('AWS_PROFILE');
-        if (empty($awsId)){
+        if (empty($awsId)) {
             $awsId = 'xxxxxxxxx';
         }
-        if (empty($awsProfile)){
+        if (empty($awsProfile)) {
             $awsProfile = null;
         }
 
         $projectDir = dirname(__DIR__);
-        $localLayers = array_keys(json_decode(file_get_contents($projectDir.'/checksums.json'), true));
+        $localLayers = array_keys(json_decode(file_get_contents($projectDir . '/checksums.json'), true));
 
         $builder->addDefinitions([
             'project_dir' => $projectDir,
@@ -50,4 +49,4 @@ protected function createContainer()
 
         return $builder->build();
     }
-}
\ No newline at end of file
+}
diff --git a/src/Aws/LayerProvider.php b/src/Aws/LayerProvider.php
index 7101c628..8d88c2eb 100644
--- a/src/Aws/LayerProvider.php
+++ b/src/Aws/LayerProvider.php
@@ -1,29 +1,23 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra\Aws;
 
 use Aws\Lambda\LambdaClient;
-use function GuzzleHttp\Promise\unwrap;
 
 /**
  * Fetches layers and details from AWS
- *
- * @author Tobias Nyholm <tobias.nyholm@gmail.com>
  */
 class LayerProvider
 {
+    /** @var string  */
     private $awsId;
 
-    /**
-     * @var array
-     */
+    /** @var array */
     private $layerNames;
 
     /**
-     * @param array $layerNames the name of the layers to list.
-     * @param string $awsId The account id
+     * @param array  $layerNames the name of the layers to list.
+     * @param string $awsId      The account id
      */
     public function __construct(array $layerNames, string $awsId)
     {
@@ -50,7 +44,7 @@ public function listLayers(string $selectedRegion): array
 
         // Wait on all of the requests to complete. Throws a ConnectException
         // if any of the requests fail
-        $results = \GuzzleHttp\Promise\unwrap($promises);
+        $results = unwrap($promises);
 
         $layers = [];
         foreach ($results as $layerName => $result) {
@@ -61,6 +55,4 @@ public function listLayers(string $selectedRegion): array
 
         return $layers;
     }
-
-
-}
\ No newline at end of file
+}
diff --git a/src/Aws/LayerPublisher.php b/src/Aws/LayerPublisher.php
index 26c80b37..c008b2c3 100644
--- a/src/Aws/LayerPublisher.php
+++ b/src/Aws/LayerPublisher.php
@@ -1,6 +1,4 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra\Aws;
 
@@ -8,15 +6,9 @@
 
 class LayerPublisher
 {
-    /**
-     * @var string|null
-     */
+    /** @var string|null */
     private $awsProfile;
 
-    /**
-     *
-     * @param string|null $awsProfile
-     */
     public function __construct(?string $awsProfile)
     {
         $this->awsProfile = $awsProfile;
@@ -24,8 +16,8 @@ public function __construct(?string $awsProfile)
 
 
     /**
-     * @param array<string, string> $layers Layer name and layer zip file path.
-     * @param array $regions
+     * @param array<string, string> $layers  Layer name and layer zip file path.
+     * @param array                 $regions
      */
     public function publishLayers(array $layers, array $regions): void
     {
@@ -38,7 +30,6 @@ public function publishLayers(array $layers, array $regions): void
         }
         $this->finishProcesses($publishingProcesses);
 
-
         // Add public permissions on the layers
         /** @var Process[] $permissionProcesses */
         $permissionProcesses = [];
@@ -55,9 +46,7 @@ public function publishLayers(array $layers, array $regions): void
 
     /**
      * @param string $region The AWS region to publish the layer to
-     * @param string $layerName
-     * @param string $file The absolute file path to the layer
-     * @return Process
+     * @param string $file   The absolute file path to the layer
      */
     private function publishSingleLayer(string $region, string $layerName, string $file): Process
     {
@@ -74,7 +63,7 @@ private function publishSingleLayer(string $region, string $layerName, string $f
             '--license-info',
             'MIT',
             '--zip-file',
-            'fileb://'.$file,
+            'fileb://' . $file,
             '--compatible-runtimes',
             'provided',
             // Output the version so that we can fetch it and use it
@@ -122,10 +111,7 @@ private function finishProcesses(array $processes): void
     }
 
     /**
-     * @param string $region
      * @param string $layer name
-     * @param string $layerVersion
-     * @return Process
      */
     private function addPublicLayerPermissions(string $region, string $layer, string $layerVersion): Process
     {
@@ -157,7 +143,4 @@ private function addPublicLayerPermissions(string $region, string $layer, string
 
         return $process;
     }
-
-
-
-}
\ No newline at end of file
+}
diff --git a/src/Command/HelpCommand.php b/src/Command/HelpCommand.php
index 5676631c..48f4a9a0 100644
--- a/src/Command/HelpCommand.php
+++ b/src/Command/HelpCommand.php
@@ -1,21 +1,16 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra\Command;
 
-use Bref\Extra\Aws\LayerPublisher;
-use Bref\Extra\Service\RegionProvider;
 use Symfony\Component\Console\Output\OutputInterface;
-use Symfony\Component\Finder\Finder;
 
 class HelpCommand
 {
-    public function __invoke(OutputInterface $output)
+    public function __invoke(OutputInterface $output): int
     {
         $output->writeln('With this small application you may publish new layers and list existing ones in layer.json');
         $output->writeln('You may specify the following environment variables: AWS_ID, AWS_PROFILE');
 
         return 0;
     }
-}
\ No newline at end of file
+}
diff --git a/src/Command/ListCommand.php b/src/Command/ListCommand.php
index 80e96a36..3028e362 100644
--- a/src/Command/ListCommand.php
+++ b/src/Command/ListCommand.php
@@ -1,6 +1,4 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra\Command;
 
@@ -15,19 +13,13 @@
  */
 class ListCommand
 {
-    /**
-     * @var LayerProvider
-     */
+    /** @var LayerProvider */
     private $provider;
 
-
-    /**
-     * @var string
-     */
+    /** @var string */
     private $projectDir;
-    /**
-     * @var RegionProvider
-     */
+
+    /** @var RegionProvider */
     private $regionProvider;
 
     public function __construct(LayerProvider $provider, RegionProvider $regionProvider, string $projectDir)
@@ -37,7 +29,7 @@ public function __construct(LayerProvider $provider, RegionProvider $regionProvi
         $this->regionProvider = $regionProvider;
     }
 
-    public function __invoke(OutputInterface $output)
+    public function __invoke(OutputInterface $output): int
     {
         $export = [];
         foreach ($this->regionProvider->getAll() as $region) {
@@ -52,4 +44,4 @@ public function __invoke(OutputInterface $output)
 
         return 0;
     }
-}
\ No newline at end of file
+}
diff --git a/src/Command/PublishCommand.php b/src/Command/PublishCommand.php
index 46a08a94..2db418d6 100644
--- a/src/Command/PublishCommand.php
+++ b/src/Command/PublishCommand.php
@@ -1,6 +1,4 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra\Command;
 
@@ -14,17 +12,11 @@
  */
 class PublishCommand
 {
-    /**
-     * @var LayerPublisher
-     */
+    /** @var LayerPublisher */
     private $publisher;
-    /**
-     * @var string
-     */
+    /** @var string */
     private $projectDir;
-    /**
-     * @var RegionProvider
-     */
+    /** @var RegionProvider */
     private $regionProvider;
 
     public function __construct(LayerPublisher $publisher, RegionProvider $regionProvider, string $projectDir)
@@ -34,22 +26,21 @@ public function __construct(LayerPublisher $publisher, RegionProvider $regionPro
         $this->regionProvider = $regionProvider;
     }
 
-    public function __invoke(OutputInterface $output)
+    public function __invoke(OutputInterface $output): int
     {
-        $checksums = file_get_contents($this->projectDir.'/checksums.json');
+        $checksums = file_get_contents($this->projectDir . '/checksums.json');
         $discoveredChecksums = [];
 
         $layers = [];
-        $finder = new Finder();
-        $finder->in($this->projectDir.'/export')
-            ->name('layer-*');
+        $finder = new Finder;
+        $finder->in($this->projectDir . '/export')->name('layer-*');
         foreach ($finder->files() as $file) {
             /** @var \SplFileInfo $file */
             $layerFile = $file->getRealPath();
             $layerName = substr($file->getFilenameWithoutExtension(), 6);
             $md5 = md5_file($layerFile);
             $discoveredChecksums[$layerName] = $md5;
-            if (false === strstr($checksums, $md5)) {
+            if (strstr($checksums, $md5) === false) {
                 // This layer is new.
                 $layers[$layerName] = $layerFile;
             }
@@ -58,18 +49,18 @@ public function __invoke(OutputInterface $output)
 
         try {
             $this->publisher->publishLayers($layers, $this->regionProvider->getAll());
-        }catch(\Exception $e) {
+        } catch (\Throwable $e) {
             // TODO write output.
             exit(1);
         }
 
         ksort($discoveredChecksums);
         // Dump checksums
-        file_put_contents($this->projectDir.'/checksums.json', json_encode($discoveredChecksums, \JSON_PRETTY_PRINT));
+        file_put_contents($this->projectDir . '/checksums.json', json_encode($discoveredChecksums, \JSON_PRETTY_PRINT));
 
         $output->writeln('Done');
         $output->writeln('Remember to commit and push changes to ./checksums.json');
 
         return 0;
     }
-}
\ No newline at end of file
+}
diff --git a/src/Service/RegionProvider.php b/src/Service/RegionProvider.php
index 583f9659..20463d80 100644
--- a/src/Service/RegionProvider.php
+++ b/src/Service/RegionProvider.php
@@ -1,15 +1,9 @@
-<?php
-
-declare(strict_types=1);
+<?php declare(strict_types=1);
 
 namespace Bref\Extra\Service;
 
-use Aws\Lambda\LambdaClient;
-
 /**
  * Get all available bref regions.
- *
- * @author Tobias Nyholm <tobias.nyholm@gmail.com>
  */
 class RegionProvider
 {