diff --git a/kodorvan/constructor/system/databases/scripts/workers.php b/kodorvan/constructor/system/databases/scripts/workers.php
new file mode 100644
index 0000000..8902ba4
--- /dev/null
+++ b/kodorvan/constructor/system/databases/scripts/workers.php
@@ -0,0 +1,75 @@
+<?php
+
+declare(strict_types=1);
+
+namespace kodorvan\constructor;
+
+// Files of the project
+use kodorvan\constructor\models\account,
+	kodorvan\constructor\models\authorizations,
+	kodorvan\constructor\models\worker,
+	kodorvan\constructor\models\tariff;
+
+// The library for currencies support
+use mirzaev\currencies\currency;
+
+// Svoboda time
+use svoboda\time\statement as svoboda;
+
+// Baza database
+use mirzaev\baza\record;
+
+// Enabling debugging
+/* ini_set('error_reporting', E_ALL);
+ini_set('display_errors', 1);
+ini_set('display_startup_errors', 1); */
+
+// Initializing path to the public directory 
+define('INDEX', __DIR__ . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'public');
+
+// Initializing path to the root directory
+define('ROOT',  INDEX . DIRECTORY_SEPARATOR	. '..' .  DIRECTORY_SEPARATOR	. '..' . DIRECTORY_SEPARATOR	. '..' . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR);
+
+// Initializing path to the settings directory
+define('SETTINGS', INDEX . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'settings');
+
+// Initializing path to the storage directory
+define('STORAGE', INDEX . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'storage');
+
+// Initializing path to the databases directory
+define('DATABASES', INDEX . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'databases');
+
+// Initializing path to the localizations directory
+define('LOCALIZATIONS', INDEX . DIRECTORY_SEPARATOR . '..' . DIRECTORY_SEPARATOR . 'localizations');
+
+// Initiailizing telegram data
+require(SETTINGS . DIRECTORY_SEPARATOR . 'telegram.php');
+
+// Initializing dependencies
+require ROOT . 'vendor' . DIRECTORY_SEPARATOR . 'autoload.php';
+
+// Initializing the account model
+$account_model = new account();
+
+// Searching for the account
+$account = $account_model->read(
+	filter: fn(record $record) => $record->domain === 'buddy_volkodav',
+);
+
+var_dump($account);
+
+// Searching for the account authorizations
+$authorizations = $account->authorizations();
+
+var_dump($authorizations);
+
+// Creating the worker
+$worker = new worker()->write(
+	account: $account->identifier,
+	hour: 2000,
+	currency: currency::rub,
+	active: true
+);
+
+var_dump($worker);
+
diff --git a/kodorvan/constructor/system/localizations/russian.php b/kodorvan/constructor/system/localizations/russian.php
index a89191f..7b49ca8 100644
--- a/kodorvan/constructor/system/localizations/russian.php
+++ b/kodorvan/constructor/system/localizations/russian.php
@@ -26,10 +26,14 @@ return [
 	'project_create_title' => 'Создание проекта',
 	/* 'project_create_description' => "Расчитайте ориентировочное время разработки, затем выберите разработчиков и получите стоимость\n\nПосле расчётов можно будет отправить проект в заказ разработчикам и приложить ТЗ, либо краткое описание задачи\n\nМы погружаемся в проекты полностью, поэтому стараемся не распыляться - от степени нагрузки меняется коэффициент стоимости!", */
 	'project_create_description' => "Задайте параметры и получите ориентировочное время разработки, затем выберите разработчиков и получите стоимость их работы\n\n_После расчётов можно отправить проект в заказ и приложить ТЗ, либо описание задачи_",
+	'project_create_cost_description' => "Стоимость и сроки выполнения предоставлены для планирования и *не являются публичной офертой*",
 	'project_create_time' => 'Время разработки',
 	'project_create_time_hours' => 'ч',
 	'project_create_time_hours_from' => 'от',
+	'project_create_time_days' => 'дн',
+	'project_create_cost' => 'Стоимость',
 	'project_create_button_back' => 'Назад',
+	'project_create_button_cost_per_hour' => 'Час',
 	'project_create_button_request' => 'Заказать',
 
 	'project_create_architectures_title' => 'Выбор архитектуры проекта',
diff --git a/kodorvan/constructor/system/models/account.php b/kodorvan/constructor/system/models/account.php
index 1068b6c..41b44d7 100644
--- a/kodorvan/constructor/system/models/account.php
+++ b/kodorvan/constructor/system/models/account.php
@@ -8,6 +8,7 @@ namespace kodorvan\constructor\models;
 use kodorvan\constructor\models\core,
 	kodorvan\constructor\models\authorizations,
 	kodorvan\constructor\models\settings,
+	kodorvan\constructor\models\worker,
 	kodorvan\constructor\models\project,
 	kodorvan\constructor\models\project\enumerations\type as project_type,
 	kodorvan\constructor\models\project\enumerations\status as project_status;
@@ -65,6 +66,13 @@ final class account extends core implements record_interface
 	 */
 	public protected(set) database $database;
 
+	/**
+	 * Serialized
+	 *
+	 * @var bool $serialized Is the implementator object serialized?
+	 */
+	private bool $serialized = true;
+
 	/**
 	 * Constructor
 	 *
@@ -84,6 +92,7 @@ final class account extends core implements record_interface
 				new column('name_first', type::string, ['length' => 64]),
 				new column('name_second', type::string, ['length' => 64]),
 				new column('language', type::string, ['length' => 2]),
+				new column('currency', type::string, ['length' => 3]),
 				new column('robot', type::char),
 				/* new column('', type::), */
 				new column('active', type::char),
@@ -215,6 +224,7 @@ final class account extends core implements record_interface
 			name_second: (string) $telegram->last_name,
 			domain: (string) $telegram->username,
 			language: (string) $telegram->language_code,
+			currency: CURRENCY_DEFAULT,
 			robot: (bool) $telegram->is_bot
 		);
 
@@ -256,6 +266,7 @@ final class account extends core implements record_interface
 	 * @param string $name_second
 	 * @param string $domain
 	 * @param language|string $language
+	 * @param currency|string $currency
 	 * @param bool $robot Is a robot?
 	 * @param bool $active Is the record active?
 	 *
@@ -267,6 +278,7 @@ final class account extends core implements record_interface
 		string $name_first = '',
 		string $name_second = '',
 		language|string $language = LANGUAGE_DEFAULT ?? language::en,
+		currency|string $currency = CURRENCY_DEFAULT ?? currency::usd,
 		bool $robot = false,
 		bool $active = true,
 	): record|false {
@@ -278,6 +290,7 @@ final class account extends core implements record_interface
 			$name_first,
 			$name_second,
 			$language instanceof language ? $language->name : (string) $language,
+			$currency instanceof currency ? $currency->name : (string) $currency,
 			(int) $robot,
 			/* */
 			(int) $active,
@@ -299,11 +312,22 @@ final class account extends core implements record_interface
 	 */
 	public function serialize(): self
 	{
+		if ($this->serialized) {
+			// The record implementor is serialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already serialized');
+		}
+
 		// Serializing the record parameters
 		$this->record->language = $this->record->language->name;
+		$this->record->currency = $this->record->currency->name;
 		$this->record->robot = (int) $this->record->robot;
 		$this->record->active = (int) $this->record->active;
 
+		// Writing the status of serializing
+		$this->serialized = true;
+
 		// Exit (success)
 		return $this;
 	}
@@ -315,11 +339,22 @@ final class account extends core implements record_interface
 	 */
 	public function deserialize(): self
 	{
+		if (!$this->serialized) {
+			// The record implementor is deserialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already deserialized');
+		}
+
 		// Deserializing the record parameters
 		$this->record->language = language::{$this->record->language} ?? LANGUAGE_DEFAULT ?? language::en;
+		$this->record->currency = currency::{$this->record->currency} ?? CURRENCY_DEFAULT ?? currency::usd;
 		$this->record->robot = (bool) $this->record->robot;
 		$this->record->active = (bool) $this->record->active;
 
+		// Writing the status of serializing
+		$this->serialized = false;
+
 		// Exit (success)
 		return $this;
 	}
@@ -347,6 +382,29 @@ final class account extends core implements record_interface
 		return null;
 	}
 
+	/**
+	 * Worker
+	 *
+	 * Search for the account worker
+	 *
+	 * @return worker|null The account worker
+	 */
+	public function worker(): ?worker
+	{
+		// Search for the account worker
+		$worker = new worker()->read(filter: fn(record $record) => $record->active === 1 && $record->account === $this->identifier);
+
+		if ($worker instanceof worker) {
+			// Found the account worker
+
+			// Exit (success)
+			return $worker;
+		}
+
+		// Exit (fail)
+		return null;
+	}
+
 	/**
 	 * Settings
 	 *
diff --git a/kodorvan/constructor/system/models/authorizations.php b/kodorvan/constructor/system/models/authorizations.php
index ae19b69..31833bf 100644
--- a/kodorvan/constructor/system/models/authorizations.php
+++ b/kodorvan/constructor/system/models/authorizations.php
@@ -51,6 +51,13 @@ final class authorizations extends core implements record_interface
 	 */
 	public protected(set) database $database;
 
+	/**
+	 * Serialized
+	 *
+	 * @var bool $serialized Is the implementator object serialized?
+	 */
+	private bool $serialized = true;
+
 	/**
 	 * Constructor
 	 *
@@ -124,12 +131,22 @@ final class authorizations extends core implements record_interface
 	 */
 	public function serialize(): self
 	{
+		if ($this->serialized) {
+			// The record implementor is serialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already serialized');
+		}
+
 		// Serializing the record parameters
 		$this->record->system = (int) $this->record->system;
 		$this->record->settings = (int) $this->record->settings;
 		$this->record->system_settings = (int) $this->record->system_settings;
 		$this->record->active = (int) $this->record->active;
 
+		// Writing the status of serializing
+		$this->serialized = true;
+
 		// Exit (success)
 		return $this;
 	}
@@ -141,12 +158,22 @@ final class authorizations extends core implements record_interface
 	 */
 	public function deserialize(): self
 	{
+		if (!$this->serialized) {
+			// The record implementor is deserialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already deserialized');
+		}
+
 		// Deserializing the record parameters
 		$this->record->system = (bool) $this->record->system;
 		$this->record->settings = (bool) $this->record->settings;
 		$this->record->system_settings = (bool) $this->record->system_settings;
 		$this->record->active = (bool) $this->record->active;
 
+		// Writing the status of serializing
+		$this->serialized = false;
+
 		// Exit (success)
 		return $this;
 	}
diff --git a/kodorvan/constructor/system/models/project.php b/kodorvan/constructor/system/models/project.php
index 41cc090..225b7e0 100644
--- a/kodorvan/constructor/system/models/project.php
+++ b/kodorvan/constructor/system/models/project.php
@@ -53,6 +53,13 @@ final class project extends core implements record_interface
 	 */
 	public protected(set) database $database;
 
+	/**
+	 * Serialized
+	 *
+	 * @var bool $serialized Is the implementator object serialized?
+	 */
+	private bool $serialized = true;
+
 	/**
 	 * Constructor
 	 *
diff --git a/kodorvan/constructor/system/models/project/enumerations/architecture.php b/kodorvan/constructor/system/models/project/enumerations/architecture.php
index aa4353d..bf45b4d 100644
--- a/kodorvan/constructor/system/models/project/enumerations/architecture.php
+++ b/kodorvan/constructor/system/models/project/enumerations/architecture.php
@@ -31,10 +31,8 @@ enum architecture
 	case chat_robot;
 	case parser;
 	case script;
-	case crm;
 	case site;
 	case program;
-		/* case calculator; */
 
 	case complex;
 
@@ -61,9 +59,6 @@ enum architecture
 				language::en => 'Script',
 				language::ru => 'Скрипт'
 			},
-			static::crm => match ($language) {
-				default => 'CRM'
-			},
 			static::site => match ($language) {
 				language::en => 'Site',
 				language::ru => 'Сайт'
@@ -88,13 +83,12 @@ enum architecture
 	{
 		// Exit (success)
 		return match ($this) {
-			static::chat_robot => 2,
+			static::chat_robot => 1,
 			static::parser => 1,
 			static::script => 1,
-			static::crm => 1,
 			static::site => 1,
 			static::program => 1,
-			static::complex => 2,
+			static::complex => 4,
 			default => 1
 		};
 	}
@@ -125,8 +119,6 @@ enum architecture
 				purpose::calculate,
 				purpose::landing,
 				purpose::marketplace,
-				purpose::events,
-				purpose::charity
 			],
 			static::parser => [
 				purpose::search
@@ -134,12 +126,6 @@ enum architecture
 			static::script => [
 				purpose::logic
 			],
-			static::crm => [
-				purpose::workers,
-				purpose::tools,
-				purpose::objects,
-				purpose::events
-			],
 			static::site => [
 				purpose::funnel,
 				purpose::contact,
@@ -149,22 +135,12 @@ enum architecture
 				purpose::calculate,
 				purpose::landing,
 				purpose::marketplace,
-				purpose::workers,
-				purpose::tools,
-				purpose::objects,
-				purpose::events,
-				purpose::charity
 			],
 			static::program => [
 				purpose::neural_network,
 				purpose::crm,
 				purpose::calculate,
 				purpose::marketplace,
-				purpose::workers,
-				purpose::tools,
-				purpose::objects,
-				purpose::events,
-				purpose::charity
 			],
 			default => []
 		};
@@ -231,10 +207,6 @@ enum architecture
 				currency::usd => 10,
 				currency::rub => 1000
 			},
-			static::crm => match ($currency) {
-				currency::usd => 100,
-				currency::rub => 8000
-			},
 			static::site => match ($currency) {
 				currency::usd => 50,
 				currency::rub => 5000
@@ -262,7 +234,6 @@ enum architecture
 			static::chat_robot => 3,
 			static::parser => 2,
 			static::script => 1,
-			static::crm => 6,
 			static::site => 3,
 			static::program => 4,
 			static::complex => 5,
diff --git a/kodorvan/constructor/system/models/project/enumerations/integration.php b/kodorvan/constructor/system/models/project/enumerations/integration.php
index 9001f01..82d8241 100644
--- a/kodorvan/constructor/system/models/project/enumerations/integration.php
+++ b/kodorvan/constructor/system/models/project/enumerations/integration.php
@@ -87,7 +87,7 @@ enum integration
 	{
 		// Exit (success)
 		return match ($this) {
-			static::one_c => 5,
+			static::one_c => 3,
 			static::bitrix24 => 3.5,
 			static::moy_sklad => 3,
 			static::telegram => 2,
diff --git a/kodorvan/constructor/system/models/project/enumerations/purpose.php b/kodorvan/constructor/system/models/project/enumerations/purpose.php
index 9f64af6..29271bf 100644
--- a/kodorvan/constructor/system/models/project/enumerations/purpose.php
+++ b/kodorvan/constructor/system/models/project/enumerations/purpose.php
@@ -28,16 +28,16 @@ enum purpose
 	case crm;
 	case landing;
 	case marketplace;
-	case charity;
+	/* case charity; */
 	case search;
 	case calculate;
-	case logic;
+	/* case logic; */
 	case game;
 
-	case workers;
+	/* case workers;
 	case tools;
 	case objects;
-	case events;
+	case events; */
 
 	case special;
 
@@ -83,10 +83,10 @@ enum purpose
 				language::en => 'Marketplace',
 				language::ru => 'Маркетплейс'
 			},
-			static::charity => match ($language) {
+			/* static::charity => match ($language) {
 				language::en => 'Charity',
 				language::ru => 'Благотворительность'
-			},
+			}, */
 			static::search => match ($language) {
 				language::en => 'Search',
 				language::ru => 'Поиск'
@@ -95,15 +95,15 @@ enum purpose
 				language::en => 'Calculate',
 				language::ru => 'Расчёты'
 			},
-			static::logic => match ($language) {
+			/* static::logic => match ($language) {
 				language::en => 'Logic',
 				language::ru => 'Логика'
-			},
+			}, */
 			static::game => match ($language) {
 				language::en => 'Game',
 				language::ru => 'Игра'
 			},
-			static::workers => match ($language) {
+			/* static::workers => match ($language) {
 				language::en => 'Workes',
 				language::ru => 'Рабочие'
 			},
@@ -118,7 +118,7 @@ enum purpose
 			static::events => match ($language) {
 				language::en => 'Events',
 				language::ru => 'События'
-			},
+			}, */
 			static::special => match ($language) {
 				language::en => 'Special',
 				language::ru => 'Особенный'
@@ -164,18 +164,18 @@ enum purpose
 				integration::moy_sklad,
 				integration::excel
 			],
-			static::charity => [
+			/* static::charity => [
 				integration::one_c,
 				integration::moy_sklad,
 				integration::excel
-			],
+			], */
 			static::search => [],
 			static::calculate => [
 				integration::one_c,
 				integration::moy_sklad,
 				integration::excel
 			],
-			static::logic => [],
+			/* static::logic => [],
 			static::tools => [
 				integration::one_c,
 				integration::moy_sklad,
@@ -200,7 +200,7 @@ enum purpose
 				integration::one_c,
 				integration::moy_sklad,
 				integration::excel
-			],
+			], */
 			default => []
 		};
 	}
@@ -222,14 +222,14 @@ enum purpose
 			static::crm => 1,
 			static::landing => 1,
 			static::marketplace => 2,
-			static::charity => 2,
+			/* static::charity => 2, */
 			static::search => 2,
 			static::calculate => 2,
-			static::logic => 1,
+			/* static::logic => 1,
 			static::tools => 1,
 			static::workers => 1,
 			static::objects => 1,
-			static::events => 1,
+			static::events => 1, */
 			static::special => 4,
 			default => 1
 		};
@@ -244,22 +244,22 @@ enum purpose
 	{
 		// Exit (success)
 		return match ($this) {
-			static::funnel => 1.4,
+			static::funnel => 2,
 			static::contact => 1.1,
-			static::neural_network => 2,
+			static::neural_network => 4,
 			static::game => 3,
 			static::gallery => 1,
-			static::crm => 3,
-			static::landing => 1.2,
-			static::marketplace => 2,
-			static::charity => 0.8,
+			static::crm => 6,
+			static::landing => 1.5,
+			static::marketplace => 8,
+			/* static::charity => 0.8, */
 			static::search => 1,
-			static::calculate => 1.1,
-			static::logic => 1,
+			static::calculate => 2,
+			/* static::logic => 1,
 			static::tools => 1,
 			static::workers => 1.2,
 			static::objects => 1,
-			static::events => 1.5,
+			static::events => 1.5, */
 			static::special => 2,
 			default => 1
 		};
diff --git a/kodorvan/constructor/system/models/settings.php b/kodorvan/constructor/system/models/settings.php
index 74eb3ae..389df45 100644
--- a/kodorvan/constructor/system/models/settings.php
+++ b/kodorvan/constructor/system/models/settings.php
@@ -51,6 +51,13 @@ final class settings extends core implements record_interface
 	 */
 	public protected(set) database $database;
 
+	/**
+	 * Serialized
+	 *
+	 * @var bool $serialized Is the implementator object serialized?
+	 */
+	private bool $serialized = true;
+
 	/**
 	 * Constructor
 	 *
@@ -111,9 +118,19 @@ final class settings extends core implements record_interface
 	 */
 	public function serialize(): self
 	{
+		if ($this->serialized) {
+			// The record implementor is serialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already serialized');
+		}
+
 		// Serializing the record parameters
 		$this->record->active = (int) $this->record->active;
 
+		// Writing the status of serializing
+		$this->serialized = true;
+
 		// Exit (success)
 		return $this;
 	}
@@ -125,9 +142,19 @@ final class settings extends core implements record_interface
 	 */
 	public function deserialize(): self
 	{
+		if (!$this->serialized) {
+			// The record implementor is deserialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already deserialized');
+		}
+
 		// Deserializing the record parameters
 		$this->record->active = (bool) $this->record->active;
 
+		// Writing the status of serializing
+		$this->serialized = false;
+
 		// Exit (success)
 		return $this;
 	}
diff --git a/kodorvan/constructor/system/models/telegram/conversations/project/create.php b/kodorvan/constructor/system/models/telegram/conversations/project/create.php
index 3d428f6..ae22b6d 100644
--- a/kodorvan/constructor/system/models/telegram/conversations/project/create.php
+++ b/kodorvan/constructor/system/models/telegram/conversations/project/create.php
@@ -71,6 +71,13 @@ final class create extends menu
 	 */
 	public array $integrations = [];
 
+	/**
+	 * Cost
+	 *
+	 * @var int|float $cost Cost per hour
+	 */
+	public int|float $cost = PROJECT_CREATE_COST_HOUR_DEFAULT ?? 0;
+
 	/**
 	 * Start
 	 * 
@@ -105,16 +112,23 @@ final class create extends menu
 		// Initializing the project development hours
 		$hours = $this->hours();
 
+		// Initializing the calculated offer
+		$offer = "*$localization->project_create_time:* $hours$localization->project_create_time_hours _\(" . ceil(($hours / PROJECT_CREATE_DAY_HOURS) + PROJECT_CREATE_DAY_ADDITIONAL) . "$localization->project_create_time_days\)_\n" . "*$localization->project_create_cost:* " . unmarkdown((string) ceil($hours * $this->cost)) . $account->currency->symbol();
+
 		// Generating the message text
 		$text = implode(
 			"\n\n",
-			[
-				"🏛 *$localization->project_create_title*",
-				/* $hours > 0 ? "*$localization->project_create_time* " . unmarkdown((string) $hours) . " $localization->hours" : $localization->project_create_description */
-				$new
-					? $localization->project_create_description
-					: "*$localization->project_create_time:* $hours$localization->project_create_time_hours"
-			]
+			array_filter(
+				[
+					"🏛 *$localization->project_create_title*",
+					$new
+						?	$localization->project_create_description
+						: $offer,
+					!$new || isset($this->cost)
+						? '⚠️ ' . $localization->project_create_cost_description
+						: null,
+				]
+			)
 		);
 
 		if ($this->text !== $text) {
@@ -197,7 +211,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -215,7 +228,6 @@ final class create extends menu
 				}
 
 				if (match ($this->architecture) {
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -226,11 +238,7 @@ final class create extends menu
 					if (isset($this->interface)) {
 						// Initialized the project interface
 
-						if ($this->architecture === project_architecture::crm) {
-							// CRM
-
-							// site, mobile or desktop program
-						} else if ($this->architecture === project_architecture::program) {
+						if ($this->architecture === project_architecture::program) {
 							// Program
 
 							// mobile or desktop
@@ -238,11 +246,7 @@ final class create extends menu
 					} else {
 						// Not initialized the project interface
 
-						if ($this->architecture === project_architecture::crm) {
-							// CRM
-
-							// site, mobile or desktop program
-						} else if ($this->architecture === project_architecture::program) {
+						if ($this->architecture === project_architecture::program) {
 							// Program
 
 							// mobile or desktop
@@ -253,7 +257,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -273,7 +276,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -291,7 +293,6 @@ final class create extends menu
 				}
 
 				if (match ($this->architecture) {
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -309,7 +310,6 @@ final class create extends menu
 				}
 
 				if (match ($this->architecture) {
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -329,7 +329,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -348,7 +347,6 @@ final class create extends menu
 
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -368,7 +366,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::complex => true,
 					default => false
@@ -386,7 +383,6 @@ final class create extends menu
 
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -405,7 +401,6 @@ final class create extends menu
 
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::complex => true,
 					default => false
@@ -424,7 +419,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -443,7 +437,6 @@ final class create extends menu
 
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -463,7 +456,6 @@ final class create extends menu
 				if (match ($this->architecture) {
 					project_architecture::chat_robot,
 					project_architecture::parser,
-					project_architecture::crm,
 					project_architecture::site,
 					project_architecture::program,
 					project_architecture::complex => true,
@@ -516,13 +508,32 @@ final class create extends menu
 		if (!$new) {
 			// The project development hours was calculated
 
-			// Writing the project architecture button
-			$this->addButtonRow(
-				button::make(
-					text: "☑️ $localization->project_create_button_request",
-					callback_data: '@request'
-				)
-			);
+
+			if (isset($this->cost)) {
+				// Initialized the project cost per hour
+
+				// Writing the project buttons
+				$this->addButtonRow(
+					button::make(
+						text: '⚖️ ' . "$localization->project_create_button_cost_per_hour: $this->cost" . $account->currency->symbol(),
+						callback_data: '@cost'
+					),
+					button::make(
+						text: "📦 $localization->project_create_button_request",
+						callback_data: '@request'
+					)
+				);
+			} else {
+				// Not initialized the project cost per hour
+
+				// Writing the project cost per hour button
+				$this->addButtonRow(
+					button::make(
+						text: '⚖️ ' . $localization->project_create_button_cost_per_hour,
+						callback_data: '@cost'
+					)
+				);
+			}
 		}
 
 		// Updating the message and saving its text
@@ -994,7 +1005,7 @@ final class create extends menu
 
 			// Writing the integration button into the row
 			$row[] = button::make(
-				text: (isset($target) && $target ? '🔹' : '') . ($localization['project_integration_' . $integration->name] ?? $integration->label(language: $language)),
+				text: (isset($target) && $target ? '🔘 ' : '') . ($localization['project_integration_' . $integration->name] ?? $integration->label(language: $language)),
 				callback_data: "$integration->name@integration"
 			);
 
@@ -1092,6 +1103,48 @@ final class create extends menu
 		$this->integrations(robot: $robot);
 	}
 
+	/**
+	 * Cost
+	 * 
+	 * Write the project cost per hour
+	 *
+	 * @param telegram $robot The robot
+	 *
+	 * @return void
+	 */
+	public function cost(telegram $robot): void
+	{
+		// Initializing the account language
+		$language = $robot->get('language') ?? LANGUAGE_DEFAULT;
+
+		// Initializing the account localization
+		$localization = $robot->get('localization') ?? new localization($language);
+
+		// Initializing the integration
+		$integration = project_integration::{$robot->callbackQuery()->data};
+
+		if (isset($this->integrations[$integration->name])) {
+			// Enabled
+
+			// Disabling
+			unset($this->integrations[$integration->name]);
+		} else {
+			// Disabled
+
+			// Enabling
+			$this->integrations[$integration->name] = $integration;
+		};
+
+		// Sending the popup notification
+		$robot->answerCallbackQuery(
+			text: $localization['project_integrations_' . (isset($this->integrations[$integration->name]) ? 'enabled' : 'disabled')],
+			show_alert: false
+		);
+
+		// Deleting the message buttons
+		$this->integrations(robot: $robot);
+	}
+
 	/**
 	 * Clear
 	 * 
@@ -1134,37 +1187,12 @@ final class create extends menu
 	 * 
 	 * Calculate the project development hours
 	 *
+	 * @param bool $absolute Summary all coefficients and then multiply?
+	 *
 	 * @return int|float The project development hours
 	 */
-	public function hours(): int|float
-	{		// Declaring coefficient
-		$coefficient = PROJECT_CREATE_START_COEFFICIENT ?? 0;
-
-		if (isset($this->architecture)) {
-			// Initialized the project architecture
-
-			// Adding into the coefficient
-			$coefficient += $this->architecture->coefficient();
-		}
-
-		if (isset($this->purpose)) {
-			// Initialized the project purpose
-
-			// Adding into the coefficient
-			$coefficient += $this->purpose->coefficient();
-		}
-
-		if (!empty($this->integrations)) {
-			// Initialized the project integrations
-
-			foreach ($this->integrations as $integration) {
-				// Iterating over the project integrations
-
-				// Adding into the coefficient
-				$coefficient += $integration->coefficient();
-			}
-		}
-
+	public function hours(bool $absolute = false): int|float
+	{
 		// Initializing start hours
 		$start = PROJECT_CREATE_START_HOURS ?? 1;
 		$start < 1 and $start = 1;
@@ -1172,11 +1200,79 @@ final class create extends menu
 		// Initializing additional hours
 		$additional = PROJECT_CREATE_HOURS_ADDITIONAL ?? 0;
 
-		// Calculating the development hours
-		$hours = $start * $coefficient + $additional;
+		if ($absolute) {
+			// The absolute coefficient
 
-		// Calculating and exit (success)
-		return ceil(max($hours, PROJECT_CREATE_HOURS_MINIMAL));
+			// Declaring coefficient
+			$coefficient = PROJECT_CREATE_START_COEFFICIENT ?? 0;
+
+			if (isset($this->architecture)) {
+				// Initialized the project architecture
+
+				// Adding into the coefficient
+				$coefficient += $this->architecture->coefficient() ?? 0;
+			}
+
+			if (isset($this->purpose)) {
+				// Initialized the project purpose
+
+				// Adding into the coefficient
+				$coefficient += $this->purpose->coefficient() ?? 0;
+			}
+
+			if (!empty($this->integrations)) {
+				// Initialized the project integrations
+
+				foreach ($this->integrations as $integration) {
+					// Iterating over the project integrations
+
+					// Adding into the coefficient
+					$coefficient += $integration->coefficient() ?? 0;
+				}
+			}
+
+			// Calculating the development hours
+			$hours = $start * $coefficient + $additional;
+
+			// Calculating and exit (success)
+			return ceil(max($hours, PROJECT_CREATE_HOURS_MINIMAL));
+		} else {
+			// The relative coefficient
+
+			// Initializing the development hours
+			$hours = $start;
+
+			if (isset($this->architecture)) {
+				// Initialized the project architecture
+
+				// Adding into the coefficient
+				$hours *= $this->architecture->coefficient() ?? 1;
+			}
+
+			if (isset($this->purpose)) {
+				// Initialized the project purpose
+
+				// Adding into the coefficient
+				$hours *= $this->purpose->coefficient() ?? 1;
+			}
+
+			if (!empty($this->integrations)) {
+				// Initialized the project integrations
+
+				foreach ($this->integrations as $integration) {
+					// Iterating over the project integrations
+
+					// Adding into the coefficient
+					$hours *= $integration->coefficient() ?? 1;
+				}
+			}
+
+			//
+			$hours += $additional;
+
+			// Calculating and exit (success)
+			return ceil(max($hours, PROJECT_CREATE_HOURS_MINIMAL));
+		}
 	}
 
 	/**
diff --git a/kodorvan/constructor/system/models/worker.php b/kodorvan/constructor/system/models/worker.php
new file mode 100644
index 0000000..ca942f4
--- /dev/null
+++ b/kodorvan/constructor/system/models/worker.php
@@ -0,0 +1,227 @@
+<?php
+
+declare(strict_types=1);
+
+namespace kodorvan\constructor\models;
+
+// Files of the project
+use kodorvan\constructor\models\core,
+	kodorvan\constructor\models\authorizations,
+	kodorvan\constructor\models\settings,
+	kodorvan\constructor\models\project,
+	kodorvan\constructor\models\account,
+	kodorvan\constructor\models\project\enumerations\type as project_type,
+	kodorvan\constructor\models\project\enumerations\status as project_status;
+
+// The library for languages support
+use mirzaev\languages\language;
+
+// The library for currencies support
+use mirzaev\currencies\currency;
+
+// Baza database
+use mirzaev\baza\database,
+	mirzaev\baza\column,
+	mirzaev\baza\record,
+	mirzaev\baza\enumerations\encoding,
+	mirzaev\baza\enumerations\type;
+
+// Active Record pattern
+use mirzaev\record\interfaces\record as record_interface,
+	mirzaev\record\traits\record as record_trait;
+
+// Svoboda time
+use svoboda\time\statement as svoboda;
+
+// Framework for Telegram
+use SergiX44\Nutgram\Telegram\Types\User\User as telegram_user;
+
+// Built-in libraries
+use Exception as exception,
+	RuntimeException as exception_runtime;
+
+/**
+ * Worker
+ *
+ * @package kodorvan\constructor\models
+ *
+ * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
+ * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
+ */
+final class worker extends core implements record_interface
+{
+	use record_trait;
+
+	/**
+	 * File
+	 *
+	 * @var string $file Path to the database file
+	 */
+	protected string $file = DATABASES . DIRECTORY_SEPARATOR . 'workers.baza';
+
+	/**
+	 * Database
+	 *
+	 * @var database $database The database
+	 */
+	public protected(set) database $database;
+
+	/**
+	 * Serialized
+	 *
+	 * @var bool $serialized Is the implementator object serialized?
+	 */
+	private bool $serialized = true;
+
+	/**
+	 * Constructor
+	 *
+	 * @method record|null $record The record
+	 *
+	 * @return void
+	 */
+	public function __construct(?record $record = null)
+	{
+		// Initializing the database
+		$this->database = new database()
+			->encoding(encoding::utf8)
+			->columns(
+				new column('identifier', type::long_long_unsigned),
+				new column('account', type::long_long_unsigned),
+				new column('hour', type::integer_unsigned),
+				new column('currency', type::string, ['length' => 3]),
+				new column('active', type::char),
+				new column('updated', type::integer_unsigned),
+				new column('created', type::integer_unsigned)
+			)
+			->connect($this->file);
+
+		// Initializing the record
+		$record instanceof record and $this->record = $record;
+	}
+
+	/**
+	 * Write
+	 *
+	 * @param int $account The account identifier
+	 * @param int|float $hour Cost per hour
+	 * @param currency|string $currency Currency of cost per hour
+	 * @param bool $active Is the record active?
+	 *
+	 * @return record|false The record, if created
+	 */
+	public function write(
+		int $account,
+		int|float $hour,
+		currency|string $currency = CURRENCY_DEFAULT ?? currency::usd,
+		bool $active = true,
+	): record|false {
+		// Initializing the record
+		$record = $this->database->record(
+			$this->database->count() + 1,
+			(int) $account,
+			$hour,
+			$currency instanceof currency ? $currency->name : (string) $currency,
+			(int) $active,
+			svoboda::timestamp(),
+			svoboda::timestamp()
+		);
+
+		// Writing the record into the database
+		$created = $this->database->write($record);
+
+		// Exit (success)
+		return $created ? $record : false;
+	}
+
+	/**
+	 * Account
+	 *
+	 * Search for the worker account
+	 *
+	 * @return account|null The account worker
+	 */
+	public function account(): ?account
+	{
+		// Search for the worker account
+		$account = new account()->read(filter: fn(record $record) => $record->active === 1 && $record->identifier === $this->account);
+
+		if ($account instanceof account) {
+			// Found the worker account
+
+			// Exit (success)
+			return $account;
+		}
+
+		// Exit (fail)
+		return null;
+	}
+
+	/**
+	 * Workers
+	 *
+	 * Search for workers
+	 *
+	 * @param int $amount Amount
+	 *
+	 * @return array Workers
+	 */
+	public static function workers(int $amount = 100): array
+	{
+		// Search for workers and exit (success/fail)
+		return new static()->database->read(
+			filter: fn(record $record) => $record->active === 1,
+			amount: $amount
+		);
+	}
+
+	/**
+	 * Serialize
+	 *
+	 * @return self The instance from which the method was called (fluent interface)
+	 */
+	public function serialize(): self
+	{
+		if ($this->serialized) {
+			// The record implementor is serialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already serialized');
+		}
+
+		// Serializing the record parameters
+		$this->record->currency = $this->record->currency->name;
+		$this->record->active = (int) $this->record->active;
+
+		// Writing the status of serializing
+		$this->serialized = true;
+
+		// Exit (success)
+		return $this;
+	}
+
+	/**
+	 * Deserialize
+	 *
+	 * @return self The instance from which the method was called (fluent interface)
+	 */
+	public function deserialize(): self
+	{
+		if (!$this->serialized) {
+			// The record implementor is deserialized
+
+			// Exit (fail)
+			throw new exception_runtime('The record implementor is already deserialized');
+		}
+
+		// Deserializing the record parameters
+		$this->record->currency = currency::{$this->record->currency} ?? CURRENCY_DEFAULT ?? currency::usd;
+		$this->record->active = (bool) $this->record->active;
+
+		// Writing the status of serializing
+		$this->serialized = false;
+
+		// Exit (success)
+		return $this;
+	}
+}
diff --git a/kodorvan/constructor/system/models/worker/enumerations/type.php b/kodorvan/constructor/system/models/worker/enumerations/type.php
new file mode 100644
index 0000000..fd1365d
--- /dev/null
+++ b/kodorvan/constructor/system/models/worker/enumerations/type.php
@@ -0,0 +1,25 @@
+<?php
+
+declare(strict_types=1);
+
+namespace kodorvan\constructor\models\worker\enumerations;
+
+// Built-in libraries
+use InvalidArgumentException as exception_argument,
+	DomainException as exception_domain;
+
+/**
+ * Type
+ *
+ * @package kodorvan\neurobot\models\worker\enumerations
+ *
+ * @license http://www.wtfpl.net/ Do What The Fuck You Want To Public License
+ * @author Arsen Mirzaev Tatyano-Muradovich <arsen@mirzaev.sexy>
+ *
+ * @deprecated
+ */
+enum type
+{
+	case programmer;
+	case designer;
+}
diff --git a/kodorvan/constructor/system/settings/system.php.sample b/kodorvan/constructor/system/settings/system.php.sample
index d8c4992..8ab5f47 100644
--- a/kodorvan/constructor/system/settings/system.php.sample
+++ b/kodorvan/constructor/system/settings/system.php.sample
@@ -22,18 +22,21 @@ define('PROJECT_OPERATOR_URL', 'https://t.me/kodorvan?direct');
 define('PROJECT_REPOSITORY', REPOSITORY . '/' . PROJECT_CREATOR . '/' . PROJECT_NAME);
 define('PROJECT_REPOSITORY_LANGUAGE_ADD',  PROJECT_REPOSITORY . '/src/branch/stable/' . PROJECT_CREATOR . '/' . PROJECT_NAME . '/system/localizations');
 
+define('CURRENCY_DEFAULT', currency::usd);
+define('LANGUAGE_DEFAULT', language::en);
+
 define('PROJECT_CREATE_START_HOURS', 1);
 define('PROJECT_CREATE_START_COEFFICIENT', 0);
 define('PROJECT_CREATE_HOURS_ADDITIONAL', 0);
 define('PROJECT_CREATE_HOURS_MINIMAL', 4);
-define('PROJECT_CREATE_COST_HOUR_DEFAULT', 1200);
+define('PROJECT_CREATE_DAY_HOURS', 4);
+define('PROJECT_CREATE_DAY_ADDITIONAL', 1);
+define('PROJECT_CREATE_COST_HOUR_DEFAULT', 20);
+define('PROJECT_CREATE_COST_CURRENCY', CURRENCY_DEFAULT);
 
 define('PROJECT_CREATE_REQUEST_RECEIVERS', [
-
+	'-0000000000000'
 ]);
 
-define('CURRENCY_DEFAULT', currency::rub);
-define('LANGUAGE_DEFAULT', language::en);
-
 // Initializing default theme for the views templater
 define('THEME', 'default');