diff --git a/.gitignore b/.gitignore
index fffa89e..edd056f 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,9 +7,7 @@ config/.env.wk-id
 config/.env.mail
 config/.env.db-wkvs-user
 websocket/node_modules
-websocket/package-lock.json
-websocket/package.json
-composer
+composer/vendor
 private-files/rechnungen/*
 private-files/config-uploads/*
 .php-ini
diff --git a/compose.yaml b/compose.yaml
index 1671252..f6e3013 100644
--- a/compose.yaml
+++ b/compose.yaml
@@ -11,9 +11,18 @@ services:
       - ./config/nginx/nginx.conf:/etc/nginx/nginx.conf:ro
     depends_on:
       - apache
+      - node
     networks:
       - wkvs
 
+  composer-init:
+    image: composer:latest
+    container_name: wkvs-composer-init
+    volumes:
+      - .:/app
+    working_dir: /app/composer
+    command: composer install --no-interaction --prefer-dist
+
   apache:
     build: ./config/apache
     container_name: wkvs-apache
@@ -23,6 +32,8 @@ services:
     depends_on:
       db-init:
         condition: service_completed_successfully
+      composer-init:
+        condition: service_completed_successfully
     networks:
       - wkvs
 
@@ -65,6 +76,23 @@ services:
     networks:
       - wkvs
 
+  node:
+    image: node:latest
+    container_name: wkvs-node
+    restart: unless-stopped
+    volumes:
+      - .:/var/wkvs
+    working_dir: /var/wkvs/websocket
+    env_file:
+      - ./config/.env.redis
+    environment:
+      - REDDIS_HOST=redis
+    command: sh -c "npm install && npm install -g pm2 && pm2-runtime start index.js --max-memory-restart 1G --node-args=\"--max-old-space-size=1024\" --name=\"WebSocket WKVS\""
+    depends_on:
+      - redis
+    networks:
+      - wkvs
+
 volumes:
   db_data:
 
diff --git a/composer/composer.json b/composer/composer.json
new file mode 100644
index 0000000..724bfad
--- /dev/null
+++ b/composer/composer.json
@@ -0,0 +1,12 @@
+{
+    "require": {
+        "vlucas/phpdotenv": "^5.6",
+        "phpmailer/phpmailer": "^7.0",
+        "shuchkin/simplexlsx": "^1.1",
+        "sprain/swiss-qr-bill": "^5.3",
+        "james-heinrich/getid3": "^1.9",
+        "chriskonnertz/string-calc": "^2.0",
+        "tecnickcom/tcpdf": "^6.11",
+        "predis/predis": "^3.5"
+    }
+}
diff --git a/composer/composer.lock b/composer/composer.lock
new file mode 100644
index 0000000..e501070
--- /dev/null
+++ b/composer/composer.lock
@@ -0,0 +1,1583 @@
+{
+    "_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": "3ceab225cb090ebcaafff5bb1f4ffec9",
+    "packages": [
+        {
+            "name": "bacon/bacon-qr-code",
+            "version": "v3.1.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/Bacon/BaconQrCode.git",
+                "reference": "4da2233e72eeecd9be3b62e0dc2cc9ed8e2e31c2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/Bacon/BaconQrCode/zipball/4da2233e72eeecd9be3b62e0dc2cc9ed8e2e31c2",
+                "reference": "4da2233e72eeecd9be3b62e0dc2cc9ed8e2e31c2",
+                "shasum": ""
+            },
+            "require": {
+                "dasprid/enum": "^1.0.3",
+                "ext-iconv": "*",
+                "php": "^8.1"
+            },
+            "require-dev": {
+                "phly/keep-a-changelog": "^2.12",
+                "phpunit/phpunit": "^10.5.11 || ^11.0.4",
+                "spatie/phpunit-snapshot-assertions": "^5.1.5",
+                "spatie/pixelmatch-php": "^1.2.0",
+                "squizlabs/php_codesniffer": "^3.9"
+            },
+            "suggest": {
+                "ext-imagick": "to generate QR code images"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "BaconQrCode\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Scholzen 'DASPRiD'",
+                    "email": "mail@dasprids.de",
+                    "homepage": "https://dasprids.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "BaconQrCode is a QR code generator for PHP.",
+            "homepage": "https://github.com/Bacon/BaconQrCode",
+            "support": {
+                "issues": "https://github.com/Bacon/BaconQrCode/issues",
+                "source": "https://github.com/Bacon/BaconQrCode/tree/v3.1.1"
+            },
+            "time": "2026-04-05T21:06:35+00:00"
+        },
+        {
+            "name": "chriskonnertz/string-calc",
+            "version": "v2.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/chriskonnertz/string-calc.git",
+                "reference": "ab730666c321e42c4392856fc21eabdcf0719ae1"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/chriskonnertz/string-calc/zipball/ab730666c321e42c4392856fc21eabdcf0719ae1",
+                "reference": "ab730666c321e42c4392856fc21eabdcf0719ae1",
+                "shasum": ""
+            },
+            "require": {
+                "ext-mbstring": "*",
+                "php": ">=8.0.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "9.*"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-0": {
+                    "ChrisKonnertz\\StringCalc": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Chris Konnertz"
+                }
+            ],
+            "description": "StringCalc is a PHP calculator library for mathematical terms (expressions) passed as strings.",
+            "keywords": [
+                "calculation",
+                "expression",
+                "math",
+                "parser",
+                "string calc",
+                "string-calc",
+                "stringcalc",
+                "term"
+            ],
+            "support": {
+                "issues": "https://github.com/chriskonnertz/string-calc/issues",
+                "source": "https://github.com/chriskonnertz/string-calc/tree/v2.0.0"
+            },
+            "time": "2022-05-13T17:29:03+00:00"
+        },
+        {
+            "name": "dasprid/enum",
+            "version": "1.0.7",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/DASPRiD/Enum.git",
+                "reference": "b5874fa9ed0043116c72162ec7f4fb50e02e7cce"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/DASPRiD/Enum/zipball/b5874fa9ed0043116c72162ec7f4fb50e02e7cce",
+                "reference": "b5874fa9ed0043116c72162ec7f4fb50e02e7cce",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=7.1 <9.0"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^7 || ^8 || ^9 || ^10 || ^11",
+                "squizlabs/php_codesniffer": "*"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "DASPRiD\\Enum\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-2-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Ben Scholzen 'DASPRiD'",
+                    "email": "mail@dasprids.de",
+                    "homepage": "https://dasprids.de/",
+                    "role": "Developer"
+                }
+            ],
+            "description": "PHP 7.1 enum implementation",
+            "keywords": [
+                "enum",
+                "map"
+            ],
+            "support": {
+                "issues": "https://github.com/DASPRiD/Enum/issues",
+                "source": "https://github.com/DASPRiD/Enum/tree/1.0.7"
+            },
+            "time": "2025-09-16T12:23:56+00:00"
+        },
+        {
+            "name": "endroid/qr-code",
+            "version": "6.1.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/endroid/qr-code.git",
+                "reference": "5fa534856ed95649d67c0eab0cabc03ab1d8e0e2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/endroid/qr-code/zipball/5fa534856ed95649d67c0eab0cabc03ab1d8e0e2",
+                "reference": "5fa534856ed95649d67c0eab0cabc03ab1d8e0e2",
+                "shasum": ""
+            },
+            "require": {
+                "bacon/bacon-qr-code": "^3.0",
+                "php": "^8.4"
+            },
+            "require-dev": {
+                "endroid/quality": "dev-main",
+                "ext-gd": "*",
+                "khanamiryan/qrcode-detector-decoder": "^2.0.3",
+                "setasign/fpdf": "^1.8.2"
+            },
+            "suggest": {
+                "ext-gd": "Enables you to write PNG images",
+                "khanamiryan/qrcode-detector-decoder": "Enables you to use the image validator",
+                "roave/security-advisories": "Makes sure package versions with known security issues are not installed",
+                "setasign/fpdf": "Enables you to use the PDF writer"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "6.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Endroid\\QrCode\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jeroen van den Enden",
+                    "email": "info@endroid.nl"
+                }
+            ],
+            "description": "Endroid QR Code",
+            "homepage": "https://github.com/endroid/qr-code",
+            "keywords": [
+                "code",
+                "endroid",
+                "php",
+                "qr",
+                "qrcode"
+            ],
+            "support": {
+                "issues": "https://github.com/endroid/qr-code/issues",
+                "source": "https://github.com/endroid/qr-code/tree/6.1.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/endroid",
+                    "type": "github"
+                }
+            ],
+            "time": "2026-02-05T07:01:58+00:00"
+        },
+        {
+            "name": "graham-campbell/result-type",
+            "version": "v1.1.4",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/GrahamCampbell/Result-Type.git",
+                "reference": "e01f4a821471308ba86aa202fed6698b6b695e3b"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/GrahamCampbell/Result-Type/zipball/e01f4a821471308ba86aa202fed6698b6b695e3b",
+                "reference": "e01f4a821471308ba86aa202fed6698b6b695e3b",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2.5 || ^8.0",
+                "phpoption/phpoption": "^1.9.5"
+            },
+            "require-dev": {
+                "phpunit/phpunit": "^8.5.41 || ^9.6.22 || ^10.5.45 || ^11.5.7"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "GrahamCampbell\\ResultType\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Graham Campbell",
+                    "email": "hello@gjcampbell.co.uk",
+                    "homepage": "https://github.com/GrahamCampbell"
+                }
+            ],
+            "description": "An Implementation Of The Result Type",
+            "keywords": [
+                "Graham Campbell",
+                "GrahamCampbell",
+                "Result Type",
+                "Result-Type",
+                "result"
+            ],
+            "support": {
+                "issues": "https://github.com/GrahamCampbell/Result-Type/issues",
+                "source": "https://github.com/GrahamCampbell/Result-Type/tree/v1.1.4"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/GrahamCampbell",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/graham-campbell/result-type",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2025-12-27T19:43:20+00:00"
+        },
+        {
+            "name": "james-heinrich/getid3",
+            "version": "v1.9.25",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/JamesHeinrich/getID3.git",
+                "reference": "fefffe762b02be155dcc32eec57feff8a49bc4b5"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/JamesHeinrich/getID3/zipball/fefffe762b02be155dcc32eec57feff8a49bc4b5",
+                "reference": "fefffe762b02be155dcc32eec57feff8a49bc4b5",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.0"
+            },
+            "require-dev": {
+                "php-parallel-lint/php-parallel-lint": "^1.0"
+            },
+            "suggest": {
+                "ext-SimpleXML": "SimpleXML extension is required to analyze RIFF/WAV/BWF audio files (also requires `ext-libxml`).",
+                "ext-com_dotnet": "COM extension is required when loading files larger than 2GB on Windows.",
+                "ext-ctype": "ctype extension is required when loading files larger than 2GB on 32-bit PHP (also on 64-bit PHP on Windows) or executing `getid3_lib::CopyTagsToComments`.",
+                "ext-dba": "DBA extension is required to use the DBA database as a cache storage.",
+                "ext-exif": "EXIF extension is required for graphic modules.",
+                "ext-iconv": "iconv extension is required to work with different character sets (when `ext-mbstring` is not available).",
+                "ext-json": "JSON extension is required to analyze Apple Quicktime videos.",
+                "ext-libxml": "libxml extension is required to analyze RIFF/WAV/BWF audio files.",
+                "ext-mbstring": "mbstring extension is required to work with different character sets.",
+                "ext-mysql": "MySQL extension is required to use the MySQL database as a cache storage (deprecated in PHP 5.5, removed in PHP >= 7.0, use `ext-mysqli` instead).",
+                "ext-mysqli": "MySQLi extension is required to use the MySQL database as a cache storage.",
+                "ext-rar": "RAR extension is required for RAR archive module.",
+                "ext-sqlite3": "SQLite3 extension is required to use the SQLite3 database as a cache storage.",
+                "ext-xml": "XML extension is required for graphic modules to analyze the XML metadata.",
+                "ext-zlib": "Zlib extension is required for archive modules and compressed metadata."
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.9.x-dev"
+                }
+            },
+            "autoload": {
+                "classmap": [
+                    "getid3/"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "GPL-1.0-or-later",
+                "LGPL-3.0-only",
+                "MPL-2.0"
+            ],
+            "description": "PHP script that extracts useful information from popular multimedia file formats",
+            "homepage": "https://www.getid3.org/",
+            "keywords": [
+                "codecs",
+                "php",
+                "tags"
+            ],
+            "support": {
+                "issues": "https://github.com/JamesHeinrich/getID3/issues",
+                "source": "https://github.com/JamesHeinrich/getID3/tree/v1.9.25"
+            },
+            "time": "2026-03-10T11:56:47+00:00"
+        },
+        {
+            "name": "kmukku/php-iso11649",
+            "version": "1.6",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/kmukku/php-iso11649.git",
+                "reference": "723863147a8ff1c292c337e9459402f4a35c3b1e"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/kmukku/php-iso11649/zipball/723863147a8ff1c292c337e9459402f4a35c3b1e",
+                "reference": "723863147a8ff1c292c337e9459402f4a35c3b1e",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.4.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "kmukku\\phpIso11649\\": [
+                        "src/"
+                    ]
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Keijo Mukku",
+                    "email": "keijo.mukku@gmail.com"
+                }
+            ],
+            "description": "ISO 11649 creditor reference library for php",
+            "homepage": "https://github.com/kmukku/php-iso11649",
+            "keywords": [
+                "Banking",
+                "ISO 11649",
+                "RF creditor reference",
+                "finance"
+            ],
+            "support": {
+                "issues": "https://github.com/kmukku/php-iso11649/issues",
+                "source": "https://github.com/kmukku/php-iso11649/tree/master"
+            },
+            "time": "2020-04-21T13:01:17+00:00"
+        },
+        {
+            "name": "phpmailer/phpmailer",
+            "version": "v7.0.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/PHPMailer/PHPMailer.git",
+                "reference": "ebf1655bd5b99b3f97e1a3ec0a69e5f4cd7ea088"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/PHPMailer/PHPMailer/zipball/ebf1655bd5b99b3f97e1a3ec0a69e5f4cd7ea088",
+                "reference": "ebf1655bd5b99b3f97e1a3ec0a69e5f4cd7ea088",
+                "shasum": ""
+            },
+            "require": {
+                "ext-ctype": "*",
+                "ext-filter": "*",
+                "ext-hash": "*",
+                "php": ">=5.5.0"
+            },
+            "require-dev": {
+                "dealerdirect/phpcodesniffer-composer-installer": "^1.0",
+                "doctrine/annotations": "^1.2.6 || ^1.13.3",
+                "php-parallel-lint/php-console-highlighter": "^1.0.0",
+                "php-parallel-lint/php-parallel-lint": "^1.3.2",
+                "phpcompatibility/php-compatibility": "^10.0.0@dev",
+                "squizlabs/php_codesniffer": "^3.13.5",
+                "yoast/phpunit-polyfills": "^1.0.4"
+            },
+            "suggest": {
+                "decomplexity/SendOauth2": "Adapter for using XOAUTH2 authentication",
+                "directorytree/imapengine": "For uploading sent messages via IMAP, see gmail example",
+                "ext-imap": "Needed to support advanced email address parsing according to RFC822",
+                "ext-mbstring": "Needed to send email in multibyte encoding charset or decode encoded addresses",
+                "ext-openssl": "Needed for secure SMTP sending and DKIM signing",
+                "greew/oauth2-azure-provider": "Needed for Microsoft Azure XOAUTH2 authentication",
+                "hayageek/oauth2-yahoo": "Needed for Yahoo XOAUTH2 authentication",
+                "league/oauth2-google": "Needed for Google XOAUTH2 authentication",
+                "psr/log": "For optional PSR-3 debug logging",
+                "symfony/polyfill-mbstring": "To support UTF-8 if the Mbstring PHP extension is not enabled (^1.2)",
+                "thenetworg/oauth2-azure": "Needed for Microsoft XOAUTH2 authentication"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "PHPMailer\\PHPMailer\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "LGPL-2.1-only"
+            ],
+            "authors": [
+                {
+                    "name": "Marcus Bointon",
+                    "email": "phpmailer@synchromedia.co.uk"
+                },
+                {
+                    "name": "Jim Jagielski",
+                    "email": "jimjag@gmail.com"
+                },
+                {
+                    "name": "Andy Prevost",
+                    "email": "codeworxtech@users.sourceforge.net"
+                },
+                {
+                    "name": "Brent R. Matzelle"
+                }
+            ],
+            "description": "PHPMailer is a full-featured email creation and transfer class for PHP",
+            "support": {
+                "issues": "https://github.com/PHPMailer/PHPMailer/issues",
+                "source": "https://github.com/PHPMailer/PHPMailer/tree/v7.0.2"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/Synchro",
+                    "type": "github"
+                }
+            ],
+            "time": "2026-01-09T18:02:33+00:00"
+        },
+        {
+            "name": "phpoption/phpoption",
+            "version": "1.9.5",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/schmittjoh/php-option.git",
+                "reference": "75365b91986c2405cf5e1e012c5595cd487a98be"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/schmittjoh/php-option/zipball/75365b91986c2405cf5e1e012c5595cd487a98be",
+                "reference": "75365b91986c2405cf5e1e012c5595cd487a98be",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.2.5 || ^8.0"
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+            },
+            "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/v1.33.0"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2025-01-02T08:10:11+00:00"
+        },
+        {
+            "name": "symfony/translation-contracts",
+            "version": "v3.6.1",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/translation-contracts.git",
+                "reference": "65a8bc82080447fae78373aa10f8d13b38338977"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/translation-contracts/zipball/65a8bc82080447fae78373aa10f8d13b38338977",
+                "reference": "65a8bc82080447fae78373aa10f8d13b38338977",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.1"
+            },
+            "type": "library",
+            "extra": {
+                "thanks": {
+                    "url": "https://github.com/symfony/contracts",
+                    "name": "symfony/contracts"
+                },
+                "branch-alias": {
+                    "dev-main": "3.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Contracts\\Translation\\": ""
+                },
+                "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 translation",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "abstractions",
+                "contracts",
+                "decoupling",
+                "interfaces",
+                "interoperability",
+                "standards"
+            ],
+            "support": {
+                "source": "https://github.com/symfony/translation-contracts/tree/v3.6.1"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2025-07-15T13:41:35+00:00"
+        },
+        {
+            "name": "symfony/validator",
+            "version": "v8.0.8",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/validator.git",
+                "reference": "1a559eecc841a6fd3dabdcbff9401a0b8951be90"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/validator/zipball/1a559eecc841a6fd3dabdcbff9401a0b8951be90",
+                "reference": "1a559eecc841a6fd3dabdcbff9401a0b8951be90",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=8.4",
+                "symfony/polyfill-ctype": "^1.8",
+                "symfony/polyfill-mbstring": "^1.0",
+                "symfony/translation-contracts": "^2.5|^3"
+            },
+            "conflict": {
+                "doctrine/lexer": "<1.1",
+                "symfony/doctrine-bridge": "<7.4",
+                "symfony/expression-language": "<7.4"
+            },
+            "require-dev": {
+                "egulias/email-validator": "^2.1.10|^3|^4",
+                "symfony/cache": "^7.4|^8.0",
+                "symfony/config": "^7.4|^8.0",
+                "symfony/console": "^7.4|^8.0",
+                "symfony/dependency-injection": "^7.4|^8.0",
+                "symfony/expression-language": "^7.4|^8.0",
+                "symfony/finder": "^7.4|^8.0",
+                "symfony/http-client": "^7.4|^8.0",
+                "symfony/http-foundation": "^7.4|^8.0",
+                "symfony/http-kernel": "^7.4|^8.0",
+                "symfony/intl": "^7.4|^8.0",
+                "symfony/mime": "^7.4|^8.0",
+                "symfony/process": "^7.4|^8.0",
+                "symfony/property-access": "^7.4|^8.0",
+                "symfony/property-info": "^7.4|^8.0",
+                "symfony/string": "^7.4|^8.0",
+                "symfony/translation": "^7.4|^8.0",
+                "symfony/type-info": "^7.4|^8.0",
+                "symfony/yaml": "^7.4|^8.0"
+            },
+            "type": "library",
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Component\\Validator\\": ""
+                },
+                "exclude-from-classmap": [
+                    "/Tests/",
+                    "/Resources/bin/"
+                ]
+            },
+            "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 tools to validate values",
+            "homepage": "https://symfony.com",
+            "support": {
+                "source": "https://github.com/symfony/validator/tree/v8.0.8"
+            },
+            "funding": [
+                {
+                    "url": "https://symfony.com/sponsor",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/fabpot",
+                    "type": "github"
+                },
+                {
+                    "url": "https://github.com/nicolas-grekas",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/symfony/symfony",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2026-03-30T15:14:47+00:00"
+        },
+        {
+            "name": "tecnickcom/tcpdf",
+            "version": "6.11.2",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/tecnickcom/TCPDF.git",
+                "reference": "e1e2ade18e574e963473f53271591edd8c0033ec"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/tecnickcom/TCPDF/zipball/e1e2ade18e574e963473f53271591edd8c0033ec",
+                "reference": "e1e2ade18e574e963473f53271591edd8c0033ec",
+                "shasum": ""
+            },
+            "require": {
+                "ext-curl": "*",
+                "php": ">=7.1.0"
+            },
+            "type": "library",
+            "autoload": {
+                "classmap": [
+                    "config",
+                    "include",
+                    "tcpdf.php",
+                    "tcpdf_barcodes_1d.php",
+                    "tcpdf_barcodes_2d.php",
+                    "include/tcpdf_colors.php",
+                    "include/tcpdf_filters.php",
+                    "include/tcpdf_font_data.php",
+                    "include/tcpdf_fonts.php",
+                    "include/tcpdf_images.php",
+                    "include/tcpdf_static.php",
+                    "include/barcodes/datamatrix.php",
+                    "include/barcodes/pdf417.php",
+                    "include/barcodes/qrcode.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "LGPL-3.0-or-later"
+            ],
+            "authors": [
+                {
+                    "name": "Nicola Asuni",
+                    "email": "info@tecnick.com",
+                    "role": "lead"
+                }
+            ],
+            "description": "TCPDF is a PHP class for generating PDF documents and barcodes.",
+            "homepage": "http://www.tcpdf.org/",
+            "keywords": [
+                "PDFD32000-2008",
+                "TCPDF",
+                "barcodes",
+                "datamatrix",
+                "pdf",
+                "pdf417",
+                "qrcode"
+            ],
+            "support": {
+                "issues": "https://github.com/tecnickcom/TCPDF/issues",
+                "source": "https://github.com/tecnickcom/TCPDF/tree/6.11.2"
+            },
+            "funding": [
+                {
+                    "url": "https://www.paypal.com/donate/?hosted_button_id=NZUEC5XS8MFBJ",
+                    "type": "custom"
+                }
+            ],
+            "time": "2026-03-03T08:58:10+00:00"
+        },
+        {
+            "name": "vlucas/phpdotenv",
+            "version": "v5.6.3",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/vlucas/phpdotenv.git",
+                "reference": "955e7815d677a3eaa7075231212f2110983adecc"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/vlucas/phpdotenv/zipball/955e7815d677a3eaa7075231212f2110983adecc",
+                "reference": "955e7815d677a3eaa7075231212f2110983adecc",
+                "shasum": ""
+            },
+            "require": {
+                "ext-pcre": "*",
+                "graham-campbell/result-type": "^1.1.4",
+                "php": "^7.2.5 || ^8.0",
+                "phpoption/phpoption": "^1.9.5",
+                "symfony/polyfill-ctype": "^1.26",
+                "symfony/polyfill-mbstring": "^1.26",
+                "symfony/polyfill-php80": "^1.26"
+            },
+            "require-dev": {
+                "bamarni/composer-bin-plugin": "^1.8.2",
+                "ext-filter": "*",
+                "phpunit/phpunit": "^8.5.34 || ^9.6.13 || ^10.4.2"
+            },
+            "suggest": {
+                "ext-filter": "Required to use the boolean validator."
+            },
+            "type": "library",
+            "extra": {
+                "bamarni-bin": {
+                    "bin-links": true,
+                    "forward-command": false
+                },
+                "branch-alias": {
+                    "dev-master": "5.6-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Dotenv\\": "src/"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "BSD-3-Clause"
+            ],
+            "authors": [
+                {
+                    "name": "Graham Campbell",
+                    "email": "hello@gjcampbell.co.uk",
+                    "homepage": "https://github.com/GrahamCampbell"
+                },
+                {
+                    "name": "Vance Lucas",
+                    "email": "vance@vancelucas.com",
+                    "homepage": "https://github.com/vlucas"
+                }
+            ],
+            "description": "Loads environment variables from `.env` to `getenv()`, `$_ENV` and `$_SERVER` automagically.",
+            "keywords": [
+                "dotenv",
+                "env",
+                "environment"
+            ],
+            "support": {
+                "issues": "https://github.com/vlucas/phpdotenv/issues",
+                "source": "https://github.com/vlucas/phpdotenv/tree/v5.6.3"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/GrahamCampbell",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/vlucas/phpdotenv",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2025-12-27T19:49:13+00:00"
+        }
+    ],
+    "packages-dev": [],
+    "aliases": [],
+    "minimum-stability": "stable",
+    "stability-flags": {},
+    "prefer-stable": false,
+    "prefer-lowest": false,
+    "platform": {},
+    "platform-dev": {},
+    "plugin-api-version": "2.9.0"
+}
diff --git a/config/apache/Dockerfile b/config/apache/Dockerfile
index 090a15b..d7f216a 100644
--- a/config/apache/Dockerfile
+++ b/config/apache/Dockerfile
@@ -5,5 +5,8 @@ RUN a2enmod rewrite
 
 RUN docker-php-ext-install mysqli && docker-php-ext-enable mysqli
 
-# The php:apache image handles the "start" command automatically,
-# so we don't need to add anything else here.
\ No newline at end of file
+# Set Apache DocumentRoot to /var/wkvs/www
+ENV APACHE_DOCUMENT_ROOT /var/wkvs/www
+RUN sed -ri -e 's!/var/www/html!${APACHE_DOCUMENT_ROOT}!g' /etc/apache2/sites-available/*.conf \
+ && sed -ri -e 's!/var/www/html!${APACHE_DOCUMENT_ROOT}!g' /etc/apache2/apache2.conf /etc/apache2/conf-available/*.conf \
+ && sed -i 's/AllowOverride None/AllowOverride All/g' /etc/apache2/apache2.conf
\ No newline at end of file
diff --git a/config/nginx/nginx.conf b/config/nginx/nginx.conf
index 976066f..5e95991 100644
--- a/config/nginx/nginx.conf
+++ b/config/nginx/nginx.conf
@@ -4,8 +4,16 @@ http {
   server {
     listen 80;
 
+    location / {
+      proxy_pass http://apache:80;
+      proxy_set_header Host $host;
+      proxy_set_header X-Real-IP $remote_addr;
+      proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+      proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
     location /ws/ {
-      proxy_pass http://127.0.0.1:8082;
+      proxy_pass http://node:8082;
       proxy_http_version 1.1;
       proxy_set_header Upgrade $http_upgrade;
       proxy_set_header Connection "Upgrade";
diff --git a/websocket/package-lock.json b/websocket/package-lock.json
new file mode 100644
index 0000000..b9c5099
--- /dev/null
+++ b/websocket/package-lock.json
@@ -0,0 +1,135 @@
+{
+  "name": "websocket",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "websocket",
+      "version": "1.0.0",
+      "license": "ISC",
+      "dependencies": {
+        "dotenv": "^17.4.1",
+        "redis": "^5.11.0",
+        "ws": "^8.20.0"
+      }
+    },
+    "node_modules/@redis/bloom": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/@redis/bloom/-/bloom-5.11.0.tgz",
+      "integrity": "sha512-KYiVilAhAFN3057afUb/tfYJpsEyTkQB+tQcn5gVVA7DgcNOAj8lLxe4j8ov8BF6I9C1Fe/kwlbuAICcTMX8Lw==",
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@redis/client": "^5.11.0"
+      }
+    },
+    "node_modules/@redis/client": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/@redis/client/-/client-5.11.0.tgz",
+      "integrity": "sha512-GHoprlNQD51Xq2Ztd94HHV94MdFZQ3CVrpA04Fz8MVoHM0B7SlbmPEVIjwTbcv58z8QyjnrOuikS0rWF03k5dQ==",
+      "dependencies": {
+        "cluster-key-slot": "1.1.2"
+      },
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@node-rs/xxhash": "^1.1.0"
+      },
+      "peerDependenciesMeta": {
+        "@node-rs/xxhash": {
+          "optional": true
+        }
+      }
+    },
+    "node_modules/@redis/json": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/@redis/json/-/json-5.11.0.tgz",
+      "integrity": "sha512-1iAy9kAtcD0quB21RbPTbUqqy+T2Uu2JxucwE+B4A+VaDbIRvpZR6DMqV8Iqaws2YxJYB3GC5JVNzPYio2ErUg==",
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@redis/client": "^5.11.0"
+      }
+    },
+    "node_modules/@redis/search": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/@redis/search/-/search-5.11.0.tgz",
+      "integrity": "sha512-g1l7f3Rnyk/xI99oGHIgWHSKFl45Re5YTIcO8j/JE8olz389yUFyz2+A6nqVy/Zi031VgPDWscbbgOk8hlhZ3g==",
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@redis/client": "^5.11.0"
+      }
+    },
+    "node_modules/@redis/time-series": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/@redis/time-series/-/time-series-5.11.0.tgz",
+      "integrity": "sha512-TWFeOcU4xkj0DkndnOyhtxvX1KWD+78UHT3XX3x3XRBUGWeQrKo3jqzDsZwxbggUgf9yLJr/akFHXru66X5UQA==",
+      "engines": {
+        "node": ">= 18"
+      },
+      "peerDependencies": {
+        "@redis/client": "^5.11.0"
+      }
+    },
+    "node_modules/cluster-key-slot": {
+      "version": "1.1.2",
+      "resolved": "https://registry.npmjs.org/cluster-key-slot/-/cluster-key-slot-1.1.2.tgz",
+      "integrity": "sha512-RMr0FhtfXemyinomL4hrWcYJxmX6deFdCxpJzhDttxgO1+bcCnkk+9drydLVDmAMG7NE6aN/fl4F7ucU/90gAA==",
+      "engines": {
+        "node": ">=0.10.0"
+      }
+    },
+    "node_modules/dotenv": {
+      "version": "17.4.1",
+      "resolved": "https://registry.npmjs.org/dotenv/-/dotenv-17.4.1.tgz",
+      "integrity": "sha512-k8DaKGP6r1G30Lx8V4+pCsLzKr8vLmV2paqEj1Y55GdAgJuIqpRp5FfajGF8KtwMxCz9qJc6wUIJnm053d/WCw==",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://dotenvx.com"
+      }
+    },
+    "node_modules/redis": {
+      "version": "5.11.0",
+      "resolved": "https://registry.npmjs.org/redis/-/redis-5.11.0.tgz",
+      "integrity": "sha512-YwXjATVDT+AuxcyfOwZn046aml9jMlQPvU1VXIlLDVAExe0u93aTfPYSeRgG4p9Q/Jlkj+LXJ1XEoFV+j2JKcQ==",
+      "dependencies": {
+        "@redis/bloom": "5.11.0",
+        "@redis/client": "5.11.0",
+        "@redis/json": "5.11.0",
+        "@redis/search": "5.11.0",
+        "@redis/time-series": "5.11.0"
+      },
+      "engines": {
+        "node": ">= 18"
+      }
+    },
+    "node_modules/ws": {
+      "version": "8.20.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.20.0.tgz",
+      "integrity": "sha512-sAt8BhgNbzCtgGbt2OxmpuryO63ZoDk/sqaB/znQm94T4fCEsy/yV+7CdC1kJhOU9lboAEU7R3kquuycDoibVA==",
+      "engines": {
+        "node": ">=10.0.0"
+      },
+      "peerDependencies": {
+        "bufferutil": "^4.0.1",
+        "utf-8-validate": ">=5.0.2"
+      },
+      "peerDependenciesMeta": {
+        "bufferutil": {
+          "optional": true
+        },
+        "utf-8-validate": {
+          "optional": true
+        }
+      }
+    }
+  }
+}
diff --git a/websocket/package.json b/websocket/package.json
new file mode 100644
index 0000000..7e7c3b9
--- /dev/null
+++ b/websocket/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "websocket",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "dotenv": "^17.4.1",
+    "redis": "^5.11.0",
+    "ws": "^8.20.0"
+  }
+}