diff --git a/.devcontainer/application/Dockerfile b/.devcontainer/application/Dockerfile
--- a/.devcontainer/application/Dockerfile
+++ b/.devcontainer/application/Dockerfile
@@ -19,8 +19,8 @@
 RUN chown git:wwwgrp-phorge /srv/phorge
 USER git
 WORKDIR /srv/phorge
-RUN git clone https://we.phorge.it/source/phorge.git
-RUN git clone https://we.phorge.it/source/arcanist.git
+RUN git clone https://github.com/phorgeit/phorge.git
+RUN git clone https://github.com/phorgeit/arcanist.git
 USER root
 WORKDIR /
 RUN mkdir -p /var/tmp/phd/log
diff --git a/composer.json b/composer.json
new file mode 100644
--- /dev/null
+++ b/composer.json
@@ -0,0 +1,5 @@
+{
+    "require-dev": {
+        "friendsofphp/php-cs-fixer": "^3.53"
+    }
+}
diff --git a/composer.lock b/composer.lock
new file mode 100644
--- /dev/null
+++ b/composer.lock
@@ -0,0 +1,1825 @@
+{
+    "_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#installing-dependencies",
+        "This file is @generated automatically"
+    ],
+    "content-hash": "38a4a7e610fa6fa26d06e0f4c455228b",
+    "packages": [],
+    "packages-dev": [
+        {
+            "name": "composer/pcre",
+            "version": "3.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/pcre.git",
+                "reference": "5b16e25a5355f1f3afdfc2f954a0a80aec4826a8"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/composer/pcre/zipball/5b16e25a5355f1f3afdfc2f954a0a80aec4826a8",
+                "reference": "5b16e25a5355f1f3afdfc2f954a0a80aec4826a8",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.4 || ^8.0"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^1.3",
+                "phpstan/phpstan-strict-rules": "^1.1",
+                "symfony/phpunit-bridge": "^5"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "3.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Composer\\Pcre\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "PCRE wrapping library that offers type-safe preg_* replacements.",
+            "keywords": [
+                "PCRE",
+                "preg",
+                "regex",
+                "regular expression"
+            ],
+            "support": {
+                "issues": "https://github.com/composer/pcre/issues",
+                "source": "https://github.com/composer/pcre/tree/3.1.3"
+            },
+            "funding": [
+                {
+                    "url": "https://packagist.com",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/composer",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/composer/composer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-03-19T10:26:25+00:00"
+        },
+        {
+            "name": "composer/semver",
+            "version": "3.4.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/semver.git",
+                "reference": "35e8d0af4486141bc745f23a29cc2091eb624a32"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/composer/semver/zipball/35e8d0af4486141bc745f23a29cc2091eb624a32",
+                "reference": "35e8d0af4486141bc745f23a29cc2091eb624a32",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.2 || ^7.0 || ^8.0"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^1.4",
+                "symfony/phpunit-bridge": "^4.2 || ^5"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "3.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Composer\\Semver\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nils Adermann",
+                    "email": "naderman@naderman.de",
+                    "homepage": "http://www.naderman.de"
+                },
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                },
+                {
+                    "name": "Rob Bast",
+                    "email": "rob.bast@gmail.com",
+                    "homepage": "http://robbast.nl"
+                }
+            ],
+            "description": "Semver library that offers utilities, version constraint parsing and validation.",
+            "keywords": [
+                "semantic",
+                "semver",
+                "validation",
+                "versioning"
+            ],
+            "support": {
+                "irc": "ircs://irc.libera.chat:6697/composer",
+                "issues": "https://github.com/composer/semver/issues",
+                "source": "https://github.com/composer/semver/tree/3.4.0"
+            },
+            "funding": [
+                {
+                    "url": "https://packagist.com",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/composer",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/composer/composer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-08-31T09:50:34+00:00"
+        },
+        {
+            "name": "composer/xdebug-handler",
+            "version": "3.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/xdebug-handler.git",
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+                "reference": "4f988f8fdf580d53bdb2d1278fe93d1ed5462255",
+                "shasum": ""
+            },
+            "require": {
+                "composer/pcre": "^1 || ^2 || ^3",
+                "php": "^7.2.5 || ^8.0",
+                "psr/log": "^1 || ^2 || ^3"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^1.0",
+                "phpstan/phpstan-strict-rules": "^1.1",
+                "phpunit/phpunit": "^8.5 || ^9.6 || ^10.5"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Composer\\XdebugHandler\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "John Stevenson",
+                    "email": "john-stevenson@blueyonder.co.uk"
+                }
+            ],
+            "description": "Restarts a process without Xdebug.",
+            "keywords": [
+                "Xdebug",
+                "performance"
+            ],
+            "support": {
+                "irc": "ircs://irc.libera.chat:6697/composer",
+                "issues": "https://github.com/composer/xdebug-handler/issues",
+                "source": "https://github.com/composer/xdebug-handler/tree/3.0.4"
+            },
+            "funding": [
+                {
+                    "url": "https://packagist.com",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/composer",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/composer/composer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-03-26T18:29:49+00:00"
+        },
+        {
+            "name": "friendsofphp/php-cs-fixer",
+            "version": "v3.53.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/PHP-CS-Fixer/PHP-CS-Fixer.git",
+                "reference": "69a19093a9ded8d1baac62ed6c009b8bc148d008"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/PHP-CS-Fixer/PHP-CS-Fixer/zipball/69a19093a9ded8d1baac62ed6c009b8bc148d008",
+                "reference": "69a19093a9ded8d1baac62ed6c009b8bc148d008",
+                "shasum": ""
+            },
+            "require": {
+                "composer/semver": "^3.4",
+                "composer/xdebug-handler": "^3.0.3",
+                "ext-filter": "*",
+                "ext-json": "*",
+                "ext-tokenizer": "*",
+                "php": "^7.4 || ^8.0",
+                "sebastian/diff": "^4.0 || ^5.0 || ^6.0",
+                "symfony/console": "^5.4 || ^6.0 || ^7.0",
+                "symfony/event-dispatcher": "^5.4 || ^6.0 || ^7.0",
+                "symfony/filesystem": "^5.4 || ^6.0 || ^7.0",
+                "symfony/finder": "^5.4 || ^6.0 || ^7.0",
+                "symfony/options-resolver": "^5.4 || ^6.0 || ^7.0",
+                "symfony/polyfill-mbstring": "^1.28",
+                "symfony/polyfill-php80": "^1.28",
+                "symfony/polyfill-php81": "^1.28",
+                "symfony/process": "^5.4 || ^6.0 || ^7.0",
+                "symfony/stopwatch": "^5.4 || ^6.0 || ^7.0"
+            },
+            "require-dev": {
+                "facile-it/paraunit": "^1.3 || ^2.0",
+                "infection/infection": "^0.27.11",
+                "justinrainbow/json-schema": "^5.2",
+                "keradus/cli-executor": "^2.1",
+                "mikey179/vfsstream": "^1.6.11",
+                "php-coveralls/php-coveralls": "^2.7",
+                "php-cs-fixer/accessible-object": "^1.1",
+                "php-cs-fixer/phpunit-constraint-isidenticalstring": "^1.4",
+                "php-cs-fixer/phpunit-constraint-xmlmatchesxsd": "^1.4",
+                "phpunit/phpunit": "^9.6 || ^10.5.5 || ^11.0.2",
+                "symfony/var-dumper": "^5.4 || ^6.0 || ^7.0",
+                "symfony/yaml": "^5.4 || ^6.0 || ^7.0"
+            },
+            "suggest": {
+                "ext-dom": "For handling output formats in XML",
+                "ext-mbstring": "For handling non-UTF8 characters."
+            },
+            "bin": [
+                "php-cs-fixer"
+            ],
+            "type": "application",
+            "autoload": {
+                "psr-4": {
+                    "PhpCsFixer\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Dariusz Rumiński",
+                    "email": "dariusz.ruminski@gmail.com"
+                }
+            ],
+            "description": "A tool to automatically fix PHP code style",
+            "keywords": [
+                "Static code analysis",
+                "fixer",
+                "standards",
+                "static analysis"
+            ],
+            "support": {
+                "issues": "https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/issues",
+                "source": "https://github.com/PHP-CS-Fixer/PHP-CS-Fixer/tree/v3.53.0"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/keradus",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-04-08T15:03:00+00:00"
+        },
+        {
+            "name": "psr/container",
+            "version": "2.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/container.git",
+                "reference": "c71ecc56dfe541dbd90c5360474fbc405f8d5963"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/container/zipball/c71ecc56dfe541dbd90c5360474fbc405f8d5963",
+                "reference": "c71ecc56dfe541dbd90c5360474fbc405f8d5963",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.4.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Container\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
+                }
+            ],
+            "description": "Common Container Interface (PHP FIG PSR-11)",
+            "homepage": "https://github.com/php-fig/container",
+            "keywords": [
+                "PSR-11",
+                "container",
+                "container-interface",
+                "container-interop",
+                "psr"
+            ],
+            "support": {
+                "issues": "https://github.com/php-fig/container/issues",
+                "source": "https://github.com/php-fig/container/tree/2.0.2"
+            },
+            "time": "2021-11-05T16:47:00+00:00"
+        },
+        {
+            "name": "psr/event-dispatcher",
+            "version": "1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/event-dispatcher.git",
+                "reference": "dbefd12671e8a14ec7f180cab83036ed26714bb0"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/event-dispatcher/zipball/dbefd12671e8a14ec7f180cab83036ed26714bb0",
+                "reference": "dbefd12671e8a14ec7f180cab83036ed26714bb0",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.2.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.0.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\EventDispatcher\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "http://www.php-fig.org/"
+                }
+            ],
+            "description": "Standard interfaces for event handling.",
+            "keywords": [
+                "events",
+                "psr",
+                "psr-14"
+            ],
+            "support": {
+                "issues": "https://github.com/php-fig/event-dispatcher/issues",
+                "source": "https://github.com/php-fig/event-dispatcher/tree/1.0.0"
+            },
+            "time": "2019-01-08T18:20:26+00:00"
+        },
+        {
+            "name": "psr/log",
+            "version": "3.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/php-fig/log.git",
+                "reference": "fe5ea303b0887d5caefd3d431c3e61ad47037001"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/php-fig/log/zipball/fe5ea303b0887d5caefd3d431c3e61ad47037001",
+                "reference": "fe5ea303b0887d5caefd3d431c3e61ad47037001",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.0.0"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "3.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Psr\\Log\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "PHP-FIG",
+                    "homepage": "https://www.php-fig.org/"
+                }
+            ],
+            "description": "Common interface for logging libraries",
+            "homepage": "https://github.com/php-fig/log",
+            "keywords": [
+                "log",
+                "psr",
+                "psr-3"
+            ],
+            "support": {
+                "source": "https://github.com/php-fig/log/tree/3.0.0"
+            },
+            "time": "2021-07-14T16:46:02+00:00"
+        },
+        {
+            "name": "sebastian/diff",
+            "version": "6.0.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/sebastianbergmann/diff.git",
+                "reference": "ab83243ecc233de5655b76f577711de9f842e712"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/ab83243ecc233de5655b76f577711de9f842e712",
+                "reference": "ab83243ecc233de5655b76f577711de9f842e712",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.2"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^11.0",
+                "symfony/process": "^4.2 || ^5"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "6.0-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "src/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Sebastian Bergmann",
+                    "email": "sebastian@phpunit.de"
+                },
+                {
+                    "name": "Kore Nordmann",
+                    "email": "mail@kore-nordmann.de"
+                }
+            ],
+            "description": "Diff implementation",
+            "homepage": "https://github.com/sebastianbergmann/diff",
+            "keywords": [
+                "diff",
+                "udiff",
+                "unidiff",
+                "unified diff"
+            ],
+            "support": {
+                "issues": "https://github.com/sebastianbergmann/diff/issues",
+                "security": "https://github.com/sebastianbergmann/diff/security/policy",
+                "source": "https://github.com/sebastianbergmann/diff/tree/6.0.1"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/sebastianbergmann",
+                    "type": "github"
+                }
+            ],
+            "time": "2024-03-02T07:30:33+00:00"
+        },
+        {
+            "name": "symfony/console",
+            "version": "v7.0.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/console.git",
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+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/console/zipball/fde915cd8e7eb99b3d531d3d5c09531429c3f9e5",
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+            },
+            "require": {
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+                "symfony/service-contracts": "^2.5|^3",
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+            },
+            "conflict": {
+                "symfony/dependency-injection": "<6.4",
+                "symfony/dotenv": "<6.4",
+                "symfony/event-dispatcher": "<6.4",
+                "symfony/lock": "<6.4",
+                "symfony/process": "<6.4"
+            },
+            "provide": {
+                "psr/log-implementation": "1.0|2.0|3.0"
+            },
+            "require-dev": {
+                "psr/log": "^1|^2|^3",
+                "symfony/config": "^6.4|^7.0",
+                "symfony/dependency-injection": "^6.4|^7.0",
+                "symfony/event-dispatcher": "^6.4|^7.0",
+                "symfony/http-foundation": "^6.4|^7.0",
+                "symfony/http-kernel": "^6.4|^7.0",
+                "symfony/lock": "^6.4|^7.0",
+                "symfony/messenger": "^6.4|^7.0",
+                "symfony/process": "^6.4|^7.0",
+                "symfony/stopwatch": "^6.4|^7.0",
+                "symfony/var-dumper": "^6.4|^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Console\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
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+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Eases the creation of beautiful and testable command line interfaces",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "cli",
+                "command-line",
+                "console",
+                "terminal"
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+            "provide": {
+                "ext-mbstring": "*"
+            },
+            "suggest": {
+                "ext-mbstring": "For best performance"
+            },
+            "type": "library",
+            "extra": {
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Mbstring\\": ""
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill for the Mbstring extension",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "mbstring",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-mbstring/tree/v1.29.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-01-29T20:11:03+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php80",
+            "version": "v1.29.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php80.git",
+                "reference": "87b68208d5c1188808dd7839ee1e6c8ec3b02f1b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php80/zipball/87b68208d5c1188808dd7839ee1e6c8ec3b02f1b",
+                "reference": "87b68208d5c1188808dd7839ee1e6c8ec3b02f1b",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php80\\": ""
+                },
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Ion Bazan",
+                    "email": "ion.bazan@gmail.com"
+                },
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php80/tree/v1.29.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-01-29T20:11:03+00:00"
+        },
+        {
+            "name": "symfony/polyfill-php81",
+            "version": "v1.29.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php81.git",
+                "reference": "c565ad1e63f30e7477fc40738343c62b40bc672d"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php81/zipball/c565ad1e63f30e7477fc40738343c62b40bc672d",
+                "reference": "c565ad1e63f30e7477fc40738343c62b40bc672d",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1"
+            },
+            "type": "library",
+            "extra": {
+                "thanks": {
+                    "name": "symfony/polyfill",
+                    "url": "https://github.com/symfony/polyfill"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php81\\": ""
+                },
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 8.1+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/polyfill-php81/tree/v1.29.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-01-29T20:11:03+00:00"
+        },
+        {
+            "name": "symfony/process",
+            "version": "v7.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/process.git",
+                "reference": "0e7727191c3b71ebec6d529fa0e50a01ca5679e9"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/process/zipball/0e7727191c3b71ebec6d529fa0e50a01ca5679e9",
+                "reference": "0e7727191c3b71ebec6d529fa0e50a01ca5679e9",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.2"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Process\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Executes commands in sub-processes",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/process/tree/v7.0.4"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-02-22T20:27:20+00:00"
+        },
+        {
+            "name": "symfony/service-contracts",
+            "version": "v3.4.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/service-contracts.git",
+                "reference": "11bbf19a0fb7b36345861e85c5768844c552906e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/service-contracts/zipball/11bbf19a0fb7b36345861e85c5768844c552906e",
+                "reference": "11bbf19a0fb7b36345861e85c5768844c552906e",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1",
+                "psr/container": "^1.1|^2.0"
+            },
+            "conflict": {
+                "ext-psr": "<1.1|>=2"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "3.4-dev"
+                },
+                "thanks": {
+                    "name": "symfony/contracts",
+                    "url": "https://github.com/symfony/contracts"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Contracts\\Service\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Test/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Generic abstractions related to writing services",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "abstractions",
+                "contracts",
+                "decoupling",
+                "interfaces",
+                "interoperability",
+                "standards"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/service-contracts/tree/v3.4.2"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2023-12-19T21:51:00+00:00"
+        },
+        {
+            "name": "symfony/stopwatch",
+            "version": "v7.0.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/stopwatch.git",
+                "reference": "983900d6fddf2b0cbaacacbbad07610854bd8112"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/983900d6fddf2b0cbaacacbbad07610854bd8112",
+                "reference": "983900d6fddf2b0cbaacacbbad07610854bd8112",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.2",
+                "symfony/service-contracts": "^2.5|^3"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Stopwatch\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Fabien Potencier",
+                    "email": "fabien@symfony.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides a way to profile code",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/stopwatch/tree/v7.0.3"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-01-23T15:02:46+00:00"
+        },
+        {
+            "name": "symfony/string",
+            "version": "v7.0.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/string.git",
+                "reference": "f5832521b998b0bec40bee688ad5de98d4cf111b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/string/zipball/f5832521b998b0bec40bee688ad5de98d4cf111b",
+                "reference": "f5832521b998b0bec40bee688ad5de98d4cf111b",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.2",
+                "symfony/polyfill-ctype": "~1.8",
+                "symfony/polyfill-intl-grapheme": "~1.0",
+                "symfony/polyfill-intl-normalizer": "~1.0",
+                "symfony/polyfill-mbstring": "~1.0"
+            },
+            "conflict": {
+                "symfony/translation-contracts": "<2.5"
+            },
+            "require-dev": {
+                "symfony/error-handler": "^6.4|^7.0",
+                "symfony/http-client": "^6.4|^7.0",
+                "symfony/intl": "^6.4|^7.0",
+                "symfony/translation-contracts": "^2.5|^3.0",
+                "symfony/var-exporter": "^6.4|^7.0"
+            },
+            "type": "library",
+            "autoload": {
+                "files": [
+                    "Resources/functions.php"
+                ],
+                "psr-4": {
+                    "Symfony\\Component\\String\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Provides an object-oriented API to strings and deals with bytes, UTF-8 code points and grapheme clusters in a unified way",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "grapheme",
+                "i18n",
+                "string",
+                "unicode",
+                "utf-8",
+                "utf8"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/string/tree/v7.0.4"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2024-02-01T13:17:36+00:00"
+        }
+    ],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": [],
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": [],
+    "platform-dev": [],
+    "plugin-api-version": "2.6.0"
+}
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -11,12 +11,14 @@
   'class' => array(
     'GanttApplication' => 'gantt/application/GanttApplication.php',
     'GanttCelerityResources' => 'gantt/celerity/GanttCelerityResources.php',
+    'GanttConfigOptions' => 'gantt/option/GanttConfigOptions.php',
     'GanttController' => 'gantt/controller/GanttController.php',
   ),
   'function' => array(),
   'xmap' => array(
     'GanttApplication' => 'PhabricatorApplication',
     'GanttCelerityResources' => 'CelerityResourcesOnDisk',
+    'GanttConfigOptions' => 'PhabricatorApplicationConfigOptions',
     'GanttController' => 'PhabricatorProjectController',
   ),
 ));
diff --git a/src/gantt/option/GanttConfigOptions.php b/src/gantt/option/GanttConfigOptions.php
new file mode 100644
--- /dev/null
+++ b/src/gantt/option/GanttConfigOptions.php
@@ -0,0 +1,82 @@
+<?php
+
+final class GanttConfigOptions
+  extends PhabricatorApplicationConfigOptions {
+
+  public function getName() {
+    return pht('Gantt');
+  }
+
+  public function getDescription() {
+    return pht('Options relating to gantt charts.');
+  }
+
+  public function getIcon() {
+    return 'fa-chart';
+  }
+
+  public function getGroup() {
+    return 'gantt';
+  }
+
+  public function getOptions() {
+    return array(
+      $this->newOption('gantt.startdate', 'string', '')
+        ->setSummary(
+          pht('Startdate .'))
+        ->setDescription(
+          pht(
+            'If true, email addresses must be verified (by clicking a link '.
+            'in an email) before a user can login. By default, verification '.
+            'is optional unless @{config:auth.email-domains} is nonempty.')),
+    );
+  }
+
+  /**
+   * Validate options by phorge
+   *
+   * @param PhabricatorConfigOption $option
+   * @param string $value
+   * @return void
+   * @throws PhabricatorConfigValidationException
+   */
+  protected function didValidateOption(
+    PhabricatorConfigOption $option,
+    $value) {
+      $key = $option->getKey();
+
+      if ($key === 'gantt.startdate') {
+        $this->validateDateField($value);
+      }
+
+      if ($key === 'gantt.enddate') {
+        $this->validateDateField($value);
+      }
+  }
+
+  /**
+   * Checks if a custom field has a correct date type
+   * @param string $customFieldName
+   * @return void
+   * @throws PhabricatorConfigValidationException
+   */
+  protected function validateDateField($customFieldName) {
+    $config = PhabricatorEnv::getEnvConfig(
+      'maniphest.custom-field-definitions');
+
+    if (!array_key_exists($customFieldName, $config)) {
+      throw new PhabricatorConfigValidationException(
+        pht('Could not find custom field %s', $customFieldName)
+      );
+    }
+
+    $configItem = $config[$customFieldName];
+
+    if ($configItem->type !== 'date') {
+      throw new PhabricatorConfigValidationException(
+        pht('ConfigItem is not of required type date')
+      );
+    }
+  }
+
+}