diff --git a/composer.json b/composer.json
index 8a69c79..e7964e4 100644
--- a/composer.json
+++ b/composer.json
@@ -7,8 +7,14 @@
             "email": "florian.weber@ueberbit.de"
         }
     ],
+    "repositories": [
+        {
+            "type": "vcs",
+            "url": "https://github.com/greg-1-anderson/package-generator"
+        }
+    ],
     "require": {
-        "webflo/package-generator": "dev-master"
+        "webflo/package-generator": "dev-repository-reference"
     },
     "autoload":{
         "psr-4":{
diff --git a/composer.lock b/composer.lock
index 2191820..d936321 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1,23 +1,23 @@
 {
     "_readme": [
         "This file locks the dependencies of your project to a known state",
-        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
+        "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "0da867dd43504d7696b917c9df7096e0",
+    "content-hash": "a71973b8b281df8d5d6ca3cf7351c680",
     "packages": [
         {
             "name": "composer/semver",
-            "version": "1.4.2",
+            "version": "1.5.0",
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                 "type": "git",
                 "url": "https://github.com/composer/semver.git",
-                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573"
+                "reference": "46d9139568ccb8d9e7cdd4539cab7347568a5e2e"
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-                "reference": "c7cb9a2095a074d131b65a8a0cd294479d785573",
+                "url": "https://api.github.com/repos/composer/semver/zipball/46d9139568ccb8d9e7cdd4539cab7347568a5e2e",
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             "require": {
@@ -66,37 +66,82 @@
                 "validation",
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-            "time": "2016-08-30T16:08:34+00:00"
+            "time": "2019-03-19T17:25:45+00:00"
         },
         {
             "name": "consolidation/annotated-command",
-            "version": "2.8.2",
+            "version": "2.12.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/annotated-command.git",
-                "reference": "e97c38717eae23a2bafcf3f09438290eee6ebeb4"
+                "reference": "512a2e54c98f3af377589de76c43b24652bcb789"
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-                "reference": "e97c38717eae23a2bafcf3f09438290eee6ebeb4",
+                "url": "https://api.github.com/repos/consolidation/annotated-command/zipball/512a2e54c98f3af377589de76c43b24652bcb789",
+                "reference": "512a2e54c98f3af377589de76c43b24652bcb789",
                 "shasum": ""
             },
             "require": {
-                "consolidation/output-formatters": "^3.1.12",
-                "php": ">=5.4.0",
+                "consolidation/output-formatters": "^3.4",
+                "php": ">=5.4.5",
                 "psr/log": "^1",
                 "symfony/console": "^2.8|^3|^4",
                 "symfony/event-dispatcher": "^2.5|^3|^4",
                 "symfony/finder": "^2.5|^3|^4"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8",
-                "satooshi/php-coveralls": "^1.0.2 | dev-master",
+                "g1a/composer-test-scenarios": "^3",
+                "php-coveralls/php-coveralls": "^1",
+                "phpunit/phpunit": "^6",
                 "squizlabs/php_codesniffer": "^2.7"
             },
             "type": "library",
             "extra": {
+                "scenarios": {
+                    "symfony4": {
+                        "require": {
+                            "symfony/console": "^4.0"
+                        },
+                        "config": {
+                            "platform": {
+                                "php": "7.1.3"
+                            }
+                        }
+                    },
+                    "symfony2": {
+                        "require": {
+                            "symfony/console": "^2.8"
+                        },
+                        "require-dev": {
+                            "phpunit/phpunit": "^4.8.36"
+                        },
+                        "remove": [
+                            "php-coveralls/php-coveralls"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.4.8"
+                            }
+                        },
+                        "scenario-options": {
+                            "create-lockfile": "false"
+                        }
+                    },
+                    "phpunit4": {
+                        "require-dev": {
+                            "phpunit/phpunit": "^4.8.36"
+                        },
+                        "remove": [
+                            "php-coveralls/php-coveralls"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.4.8"
+                            }
+                        }
+                    }
+                },
                 "branch-alias": {
                     "dev-master": "2.x-dev"
                 }
@@ -117,20 +162,20 @@
                 }
             ],
             "description": "Initialize Symfony Console commands from annotated command class methods.",
-            "time": "2017-11-29T16:23:23+00:00"
+            "time": "2019-03-08T16:55:03+00:00"
         },
         {
             "name": "consolidation/config",
-            "version": "1.0.9",
+            "version": "1.2.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/config.git",
-                "reference": "34ca8d7c1ee60a7b591b10617114cf1210a2e92c"
+                "reference": "cac1279bae7efb5c7fb2ca4c3ba4b8eb741a96c1"
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-                "reference": "34ca8d7c1ee60a7b591b10617114cf1210a2e92c",
+                "url": "https://api.github.com/repos/consolidation/config/zipball/cac1279bae7efb5c7fb2ca4c3ba4b8eb741a96c1",
+                "reference": "cac1279bae7efb5c7fb2ca4c3ba4b8eb741a96c1",
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@@ -139,9 +184,9 @@
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-                "greg-1-anderson/composer-test-scenarios": "^1",
-                "phpunit/phpunit": "^4",
-                "satooshi/php-coveralls": "^1.0",
+                "g1a/composer-test-scenarios": "^3",
+                "php-coveralls/php-coveralls": "^1",
+                "phpunit/phpunit": "^5",
                 "squizlabs/php_codesniffer": "2.*",
                 "symfony/console": "^2.5|^3|^4",
                 "symfony/yaml": "^2.8.11|^3|^4"
@@ -151,6 +196,33 @@
             },
             "type": "library",
             "extra": {
+                "scenarios": {
+                    "symfony4": {
+                        "require-dev": {
+                            "symfony/console": "^4.0"
+                        },
+                        "config": {
+                            "platform": {
+                                "php": "7.1.3"
+                            }
+                        }
+                    },
+                    "symfony2": {
+                        "require-dev": {
+                            "symfony/console": "^2.8",
+                            "symfony/event-dispatcher": "^2.8",
+                            "phpunit/phpunit": "^4.8.36"
+                        },
+                        "remove": [
+                            "php-coveralls/php-coveralls"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.4.8"
+                            }
+                        }
+                    }
+                },
                 "branch-alias": {
                     "dev-master": "1.x-dev"
                 }
@@ -171,34 +243,76 @@
                 }
             ],
             "description": "Provide configuration services for a commandline tool.",
-            "time": "2017-12-22T17:28:19+00:00"
+            "time": "2019-03-03T19:37:04+00:00"
         },
         {
             "name": "consolidation/log",
-            "version": "1.0.5",
+            "version": "1.1.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/log.git",
-                "reference": "dbc7c535f319a4a2d5a5077738f8eb7c10df8821"
+                "reference": "b2e887325ee90abc96b0a8b7b474cd9e7c896e3a"
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             "dist": {
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-                "reference": "dbc7c535f319a4a2d5a5077738f8eb7c10df8821",
+                "url": "https://api.github.com/repos/consolidation/log/zipball/b2e887325ee90abc96b0a8b7b474cd9e7c896e3a",
+                "reference": "b2e887325ee90abc96b0a8b7b474cd9e7c896e3a",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.5.0",
-                "psr/log": "~1.0",
+                "php": ">=5.4.5",
+                "psr/log": "^1.0",
                 "symfony/console": "^2.8|^3|^4"
             },
             "require-dev": {
-                "phpunit/phpunit": "4.*",
-                "satooshi/php-coveralls": "dev-master",
-                "squizlabs/php_codesniffer": "2.*"
+                "g1a/composer-test-scenarios": "^3",
+                "php-coveralls/php-coveralls": "^1",
+                "phpunit/phpunit": "^6",
+                "squizlabs/php_codesniffer": "^2"
             },
             "type": "library",
             "extra": {
+                "scenarios": {
+                    "symfony4": {
+                        "require": {
+                            "symfony/console": "^4.0"
+                        },
+                        "config": {
+                            "platform": {
+                                "php": "7.1.3"
+                            }
+                        }
+                    },
+                    "symfony2": {
+                        "require": {
+                            "symfony/console": "^2.8"
+                        },
+                        "require-dev": {
+                            "phpunit/phpunit": "^4.8.36"
+                        },
+                        "remove": [
+                            "php-coveralls/php-coveralls"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.4.8"
+                            }
+                        }
+                    },
+                    "phpunit4": {
+                        "require-dev": {
+                            "phpunit/phpunit": "^4.8.36"
+                        },
+                        "remove": [
+                            "php-coveralls/php-coveralls"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.4.8"
+                            }
+                        }
+                    }
+                },
                 "branch-alias": {
                     "dev-master": "1.x-dev"
                 }
@@ -219,35 +333,87 @@
                 }
             ],
             "description": "Improved Psr-3 / Psr\\Log logger based on Symfony Console components.",
-            "time": "2017-11-29T01:44:16+00:00"
+            "time": "2019-01-01T17:30:51+00:00"
         },
         {
             "name": "consolidation/output-formatters",
-            "version": "3.1.13",
+            "version": "3.5.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/output-formatters.git",
-                "reference": "3188461e965b32148c8fb85261833b2b72d34b8c"
+                "reference": "99ec998ffb697e0eada5aacf81feebfb13023605"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/consolidation/output-formatters/zipball/3188461e965b32148c8fb85261833b2b72d34b8c",
-                "reference": "3188461e965b32148c8fb85261833b2b72d34b8c",
+                "url": "https://api.github.com/repos/consolidation/output-formatters/zipball/99ec998ffb697e0eada5aacf81feebfb13023605",
+                "reference": "99ec998ffb697e0eada5aacf81feebfb13023605",
                 "shasum": ""
             },
             "require": {
+                "dflydev/dot-access-data": "^1.1.0",
                 "php": ">=5.4.0",
                 "symfony/console": "^2.8|^3|^4",
                 "symfony/finder": "^2.5|^3|^4"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8",
-                "satooshi/php-coveralls": "^1.0.2 | dev-master",
+                "g1a/composer-test-scenarios": "^3",
+                "php-coveralls/php-coveralls": "^1",
+                "phpunit/phpunit": "^5.7.27",
                 "squizlabs/php_codesniffer": "^2.7",
+                "symfony/var-dumper": "^2.8|^3|^4",
                 "victorjonsson/markdowndocs": "^1.3"
             },
+            "suggest": {
+                "symfony/var-dumper": "For using the var_dump formatter"
+            },
             "type": "library",
             "extra": {
+                "scenarios": {
+                    "symfony4": {
+                        "require": {
+                            "symfony/console": "^4.0"
+                        },
+                        "require-dev": {
+                            "phpunit/phpunit": "^6"
+                        },
+                        "config": {
+                            "platform": {
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+                            }
+                        }
+                    },
+                    "symfony3": {
+                        "require": {
+                            "symfony/console": "^3.4",
+                            "symfony/finder": "^3.4",
+                            "symfony/var-dumper": "^3.4"
+                        },
+                        "config": {
+                            "platform": {
+                                "php": "5.6.32"
+                            }
+                        }
+                    },
+                    "symfony2": {
+                        "require": {
+                            "symfony/console": "^2.8"
+                        },
+                        "require-dev": {
+                            "phpunit/phpunit": "^4.8.36"
+                        },
+                        "remove": [
+                            "php-coveralls/php-coveralls"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.4.8"
+                            }
+                        },
+                        "scenario-options": {
+                            "create-lockfile": "false"
+                        }
+                    }
+                },
                 "branch-alias": {
                     "dev-master": "3.x-dev"
                 }
@@ -268,27 +434,28 @@
                 }
             ],
             "description": "Format text by applying transformations provided by plug-in formatters.",
-            "time": "2017-11-29T15:25:38+00:00"
+            "time": "2019-05-30T23:16:01+00:00"
         },
         {
             "name": "consolidation/robo",
-            "version": "1.2.1",
+            "version": "1.4.9",
             "source": {
                 "type": "git",
                 "url": "https://github.com/consolidation/Robo.git",
-                "reference": "b6296f1cf1088f1a11b0b819f9e42ef6f00b79a9"
+                "reference": "5c6b3840a45afda1cbffbb3bb1f94dd5f9f83345"
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             "dist": {
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-                "reference": "b6296f1cf1088f1a11b0b819f9e42ef6f00b79a9",
+                "url": "https://api.github.com/repos/consolidation/Robo/zipball/5c6b3840a45afda1cbffbb3bb1f94dd5f9f83345",
+                "reference": "5c6b3840a45afda1cbffbb3bb1f94dd5f9f83345",
                 "shasum": ""
             },
             "require": {
-                "consolidation/annotated-command": "^2.8.2",
-                "consolidation/config": "^1.0.1",
+                "consolidation/annotated-command": "^2.10.2",
+                "consolidation/config": "^1.2",
                 "consolidation/log": "~1",
                 "consolidation/output-formatters": "^3.1.13",
+                "consolidation/self-update": "^1",
                 "grasmash/yaml-expander": "^1.3",
                 "league/container": "^2.2",
                 "php": ">=5.5.0",
@@ -305,12 +472,15 @@
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                 "codeception/base": "^2.3.7",
                 "codeception/verify": "^0.3.2",
-                "greg-1-anderson/composer-test-scenarios": "^1",
+                "g1a/composer-test-scenarios": "^3",
+                "goaop/framework": "~2.1.2",
+                "goaop/parser-reflection": "^1.1.0",
                 "natxet/cssmin": "3.0.4",
+                "nikic/php-parser": "^3.1.5",
                 "patchwork/jsqueeze": "~2",
-                "pear/archive_tar": "^1.4.2",
+                "pear/archive_tar": "^1.4.4",
+                "php-coveralls/php-coveralls": "^1",
                 "phpunit/php-code-coverage": "~2|~4",
-                "satooshi/php-coveralls": "^2",
                 "squizlabs/php_codesniffer": "^2.8"
             },
             "suggest": {
@@ -324,9 +494,36 @@
             ],
             "type": "library",
             "extra": {
+                "scenarios": {
+                    "symfony4": {
+                        "require": {
+                            "symfony/console": "^4"
+                        },
+                        "config": {
+                            "platform": {
+                                "php": "7.1.3"
+                            }
+                        }
+                    },
+                    "symfony2": {
+                        "require": {
+                            "symfony/console": "^2.8"
+                        },
+                        "remove": [
+                            "goaop/framework"
+                        ],
+                        "config": {
+                            "platform": {
+                                "php": "5.5.9"
+                            }
+                        },
+                        "scenario-options": {
+                            "create-lockfile": "false"
+                        }
+                    }
+                },
                 "branch-alias": {
-                    "dev-master": "1.x-dev",
-                    "dev-state": "1.x-dev"
+                    "dev-master": "2.x-dev"
                 }
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@@ -345,7 +542,57 @@
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             ],
             "description": "Modern task runner",
-            "time": "2017-12-29T06:48:35+00:00"
+            "time": "2019-03-19T18:07:19+00:00"
+        },
+        {
+            "name": "consolidation/self-update",
+            "version": "1.1.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/consolidation/self-update.git",
+                "reference": "a1c273b14ce334789825a09d06d4c87c0a02ad54"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/consolidation/self-update/zipball/a1c273b14ce334789825a09d06d4c87c0a02ad54",
+                "reference": "a1c273b14ce334789825a09d06d4c87c0a02ad54",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.5.0",
+                "symfony/console": "^2.8|^3|^4",
+                "symfony/filesystem": "^2.5|^3|^4"
+            },
+            "bin": [
+                "scripts/release"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "SelfUpdate\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Greg Anderson",
+                    "email": "greg.1.anderson@greenknowe.org"
+                },
+                {
+                    "name": "Alexander Menk",
+                    "email": "menk@mestrona.net"
+                }
+            ],
+            "description": "Provides a self:update command for Symfony Console applications.",
+            "time": "2018-10-28T01:52:03+00:00"
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         {
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@@ -439,16 +686,16 @@
         },
         {
             "name": "gitonomy/gitlib",
-            "version": "v1.0.3",
+            "version": "v1.0.4",
             "source": {
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                 "url": "https://github.com/gitonomy/gitlib.git",
-                "reference": "1c2b0605115786613cb517798046c8ab57c17097"
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@@ -491,7 +738,7 @@
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             "description": "Library for accessing git",
             "homepage": "http://gitonomy.com",
-            "time": "2018-01-10T11:34:47+00:00"
+            "time": "2018-04-22T19:55:36+00:00"
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         {
             "name": "grasmash/expander",
@@ -704,16 +951,16 @@
         },
         {
             "name": "psr/log",
-            "version": "1.0.2",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/php-fig/log.git",
-                "reference": "4ebe3a8bf773a19edfe0a84b6585ba3d401b724d"
+                "reference": "6c001f1daafa3a3ac1d8ff69ee4db8e799a654dd"
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@@ -851,7 +1112,7 @@
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@@ -878,29 +1139,88 @@
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@@ -927,20 +1247,20 @@
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@@ -949,7 +1269,7 @@
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@@ -976,20 +1296,78 @@
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-            "time": "2018-01-03T07:38:00+00:00"
+            "time": "2019-05-26T20:47:49+00:00"
+        },
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+            "version": "v1.11.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-ctype.git",
+                "reference": "82ebae02209c21113908c229e9883c419720738a"
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+                "url": "https://api.github.com/repos/symfony/polyfill-ctype/zipball/82ebae02209c21113908c229e9883c419720738a",
+                "reference": "82ebae02209c21113908c229e9883c419720738a",
+                "shasum": ""
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+            "require": {
+                "php": ">=5.3.3"
+            },
+            "suggest": {
+                "ext-ctype": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.11-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Ctype\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
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+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                },
+                {
+                    "name": "Gert de Pagter",
+                    "email": "BackEndTea@gmail.com"
+                }
+            ],
+            "description": "Symfony polyfill for ctype functions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "ctype",
+                "polyfill",
+                "portable"
+            ],
+            "time": "2019-02-06T07:57:58+00:00"
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-            "version": "v1.6.0",
+            "version": "v1.11.0",
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                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296"
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@@ -1001,7 +1379,7 @@
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@@ -1035,20 +1413,78 @@
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+            "time": "2019-02-06T07:57:58+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php73",
+            "version": "v1.11.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php73.git",
+                "reference": "d1fb4abcc0c47be136208ad9d68bf59f1ee17abd"
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+                "shasum": ""
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+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.11-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php73\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
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+            "authors": [
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+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2019-02-06T07:57:58+00:00"
         },
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-            "version": "v4.0.4",
+            "version": "v4.3.1",
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                 "url": "https://github.com/symfony/process.git",
-                "reference": "e1712002d81de6f39f854bc5bbd9e9f4bb6345b4"
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@@ -1057,7 +1493,7 @@
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+                    "dev-master": "4.3-dev"
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@@ -1084,24 +1520,83 @@
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-            "time": "2018-01-29T09:06:29+00:00"
+            "time": "2019-05-30T16:10:05+00:00"
+        },
+        {
+            "name": "symfony/service-contracts",
+            "version": "v1.1.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/service-contracts.git",
+                "reference": "191afdcb5804db960d26d8566b7e9a2843cab3a0"
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+                "shasum": ""
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+            "require": {
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+            },
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+                }
+            },
+            "autoload": {
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+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
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+                    "email": "p@tchwork.com"
+                },
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+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
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+            "keywords": [
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+                "contracts",
+                "decoupling",
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+            "time": "2019-05-28T07:50:59+00:00"
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         {
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-            "version": "v4.0.4",
+            "version": "v4.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "ffc60bda1d4a00ec0b32eeabf39dc017bf480028"
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+                "php": "^7.1.3",
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@@ -1115,7 +1610,7 @@
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@@ -1142,20 +1637,20 @@
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             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2018-01-21T19:06:11+00:00"
+            "time": "2019-04-06T14:04:46+00:00"
         },
         {
             "name": "webflo/package-generator",
-            "version": "dev-master",
+            "version": "dev-repository-reference",
             "source": {
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-                "url": "https://github.com/webflo/package-generator.git",
-                "reference": "9dce141da4ce062a2cd2d141d89d199a342f872c"
+                "url": "https://github.com/greg-1-anderson/package-generator.git",
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@@ -1169,12 +1664,14 @@
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                 "GPL-2.0-or-later"
             ],
             "description": "A small tool to generate composer packages.",
-            "time": "2018-01-28T12:10:22+00:00"
+            "support": {
+                "source": "https://github.com/greg-1-anderson/package-generator/tree/repository-reference"
+            },
+            "time": "2019-06-16T01:45:53+00:00"
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diff --git a/packages.yml b/packages.yml
index 9a6879b..2b0a4c8 100644
--- a/packages.yml
+++ b/packages.yml
@@ -7,6 +7,12 @@ packages:
         name: Florian Weber (via CircleCI)
         email: florian@webflo.org
     builder: \PackageGeneratorDrupal\DrupalCoreStrictBuilder
+    composer:
+      metadata:
+        name: webflo/drupal-core-strict
+        type: metapackage
+        description: Locked core dependencies
+        license: GPL-2.0-or-later
   webflo/drupal-core-require-dev:
     source: https://git.drupalcode.org/project/drupal.git
     target: https://github.com/webflo/drupal-core-require-dev.git
@@ -15,3 +21,9 @@ packages:
         name: Florian Weber (via CircleCI)
         email: florian@webflo.org
     builder: \PackageGeneratorDrupal\DrupalCoreRequireDevBuilder
+    composer:
+      metadata:
+        name: webflo/drupal-core-require-dev
+        type: metapackage
+        description: require-dev dependencies from drupal/core
+        license: GPL-2.0-or-later
diff --git a/src/DrupalCoreRequireDevBuilder.php b/src/DrupalCoreRequireDevBuilder.php
index 9c9f1bf..84e5854 100644
--- a/src/DrupalCoreRequireDevBuilder.php
+++ b/src/DrupalCoreRequireDevBuilder.php
@@ -7,15 +7,8 @@
 
 class DrupalCoreRequireDevBuilder extends DrupalPackageBuilder {
 
-  protected $defaultMetadata = [
-    'name' => 'webflo/drupal-core-require-dev',
-    'type' => 'metapackage',
-    'description' => 'require-dev dependencies from drupal/core',
-    'license' => 'GPL-2.0-or-later',
-  ];
-
   public function getPackage() {
-    $composer = $this->defaultMetadata;
+    $composer =  $this->config['composer']['metadata'];
     $constraint = NULL;
     if ($this->gitObject instanceof Branch) {
       $constraint = str_replace('origin/', '', $this->gitObject->getName()) . '-dev';
diff --git a/src/DrupalCoreStrictBuilder.php b/src/DrupalCoreStrictBuilder.php
index 6299a34..fcab038 100644
--- a/src/DrupalCoreStrictBuilder.php
+++ b/src/DrupalCoreStrictBuilder.php
@@ -4,15 +4,8 @@
 
 class DrupalCoreStrictBuilder extends DrupalPackageBuilder {
 
-  protected $defaultMetadata = [
-    'name' => 'webflo/drupal-core-strict',
-    'type' => 'metapackage',
-    'description' => 'Locked core dependencies',
-    'license' => 'GPL-2.0-or-later',
-  ];
-
   public function getPackage() {
-    $composer = $this->defaultMetadata;
+    $composer =  $this->config['composer']['metadata'];
 
     if (isset($this->composerLock['packages'])) {
       foreach ($this->composerLock['packages'] as $package) {
diff --git a/src/DrupalPackageBuilder.php b/src/DrupalPackageBuilder.php
index 06c90e0..e692cc6 100644
--- a/src/DrupalPackageBuilder.php
+++ b/src/DrupalPackageBuilder.php
@@ -6,6 +6,7 @@
 use Gitonomy\Git\Reference\Branch;
 use Gitonomy\Git\Reference\Tag;
 use PackageGenerator\BuilderInterface;
+use Gitonomy\Git\Repository;
 
 abstract class DrupalPackageBuilder implements BuilderInterface {
 
@@ -29,10 +30,22 @@ abstract class DrupalPackageBuilder implements BuilderInterface {
    */
   protected $gitObject;
 
-  public function __construct(array $composerJson, array $composerLock, Reference $gitObject) {
+  /**
+   * @var array
+   */
+  protected $config;
+
+  /**
+   * @var Repository
+   */
+  protected $metapackage_repository;
+
+  public function __construct(array $composerJson, array $composerLock, Reference $gitObject, array $config, Repository $metapackage_repository) {
     $this->composerJson = $composerJson;
     $this->composerLock = $composerLock;
     $this->gitObject = $gitObject;
+    $this->config = $config;
+    $this->metapackage_repository = $metapackage_repository;
 
     if ($this->gitObject instanceof Branch) {
       $this->referenceName = str_replace('origin/', '', $this->gitObject->getName());
diff --git a/src/DrupalScaffoldAssetsBuilder.php b/src/DrupalScaffoldAssetsBuilder.php
new file mode 100644
index 0000000..518393f
--- /dev/null
+++ b/src/DrupalScaffoldAssetsBuilder.php
@@ -0,0 +1,59 @@
+<?php
+
+namespace PackageGeneratorDrupal;
+
+use Symfony\Component\Filesystem\Filesystem;
+
+class DrupalScaffoldAssetsBuilder extends DrupalPackageBuilder {
+
+  public function getPackage() {
+    $composer = $this->config['composer']['metadata'];
+
+    $composer['extra']['composer-scaffold']['file-mapping'] = $this->addFileMapping();
+
+    return $composer;
+  }
+
+  protected function addFileMapping() {
+    $fs = new Filesystem();
+    $drupal_drupal_repository = $this->gitObject->getRepository();
+    $scaffold_assets_repository = $this->metapackage_repository;
+    $drupal_drupal_path = $drupal_drupal_repository->getPath();
+
+    $scaffold_file_mapping = $this->config['composer']['file-mapping'];
+
+    // The file mappings are structured as follows:
+    //   "[web-root]/sites/example.settings.local.php": "assets/example.settings.local.php"
+    // The key is the path to the asset in the Drupal project, and the value
+    // is the path to the asset in the Scaffold Assets.
+    // The Drupal project path is where we read the asset from now, as we are
+    // building the Scaffold Assets. It is also where the asset will ultimately
+    // be installed to when the Drupal Scaffold operation actually executes.
+    // The scaffold assets path is the location where we will write the asset
+    // to as we build the Scaffold Assets project.
+    foreach ($scaffold_file_mapping as $drupal_project_asset_path => $scaffold_asset_path) {
+      if (is_array($scaffold_asset_path)) {
+        if (isset($scaffold_asset_path['shadow'])) {
+          unset($scaffold_file_mapping[$drupal_project_asset_path]['shadow']);
+          $drupal_project_asset_path = $scaffold_asset_path['shadow'];
+        }
+        $scaffold_asset_path = $scaffold_asset_path['path'];
+      }
+      $source_path = str_replace('[web-root]', $drupal_drupal_path, $drupal_project_asset_path);
+      $target_path = $scaffold_assets_repository->getPath() . '/' . $scaffold_asset_path;
+      // If the source scaffold file does not exist in this revision, then
+      // remove it from the file mapping path.
+      if (!file_exists($source_path)) {
+        unset($scaffold_file_mapping[$drupal_project_asset_path]);
+      }
+      else {
+        $fs->mkdir(dirname($target_path));
+        copy($source_path, $target_path);
+        $scaffold_assets_repository->run('add', [$scaffold_asset_path]);
+      }
+    }
+
+    return $scaffold_file_mapping;
+  }
+
+}