diff --git a/herodb/Cargo.lock b/herodb/Cargo.lock
index 38b7580..d45ba75 100644
--- a/herodb/Cargo.lock
+++ b/herodb/Cargo.lock
@@ -658,6 +658,7 @@ dependencies = [
  "bincode",
  "brotli",
  "chrono",
+ "paste",
  "poem",
  "poem-openapi",
  "rhai",
@@ -1007,6 +1008,12 @@ dependencies = [
  "windows-targets",
 ]
 
+[[package]]
+name = "paste"
+version = "1.0.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "57c0d7b74b563b49d38dae00a0c37d4d6de9b432382b2892f0574ddcae73fd0a"
+
 [[package]]
 name = "percent-encoding"
 version = "2.3.1"
diff --git a/herodb/Cargo.toml b/herodb/Cargo.toml
index e8c543c..b503016 100644
--- a/herodb/Cargo.toml
+++ b/herodb/Cargo.toml
@@ -20,6 +20,7 @@ poem = "1.3.55"
 poem-openapi = { version = "2.0.11", features = ["swagger-ui"] }
 tokio = { version = "1", features = ["full"] }
 rhai = "1.15.1"
+paste = "1.0"
 
 [[example]]
 name = "rhai_demo"
diff --git a/herodb/README.md b/herodb/README.md
new file mode 100644
index 0000000..4ac2b11
--- /dev/null
+++ b/herodb/README.md
@@ -0,0 +1,81 @@
+# HeroDB
+
+A database library built on top of sled with model support.
+
+## Features
+
+- Type-safe database operations
+- Builder pattern for model creation
+- Transaction support
+- Model-specific convenience methods
+- Compression for efficient storage
+
+## Usage
+
+### Basic Usage
+
+```rust
+use herodb::db::{DB, DBBuilder};
+use herodb::models::biz::{Product, ProductBuilder, ProductType, ProductStatus, Currency, CurrencyBuilder};
+
+// Create a database instance
+let db = DBBuilder::new("db")
+    .register_model::<Product>()
+    .register_model::<Currency>()
+    .build()
+    .expect("Failed to create database");
+
+// Create a product using the builder pattern
+let price = CurrencyBuilder::new()
+    .amount(29.99)
+    .currency_code("USD")
+    .build()
+    .expect("Failed to build currency");
+
+let product = ProductBuilder::new()
+    .id(1)
+    .name("Premium Service")
+    .description("Our premium service offering")
+    .price(price)
+    .type_(ProductType::Service)
+    .category("Services")
+    .status(ProductStatus::Available)
+    .max_amount(100)
+    .validity_days(30)
+    .build()
+    .expect("Failed to build product");
+
+// Insert the product using the generic method
+db.set(&product).expect("Failed to insert product");
+
+// Retrieve the product
+let retrieved_product = db.get::<Product>(&"1".to_string()).expect("Failed to retrieve product");
+```
+
+### Using Model-Specific Convenience Methods
+
+The library provides model-specific convenience methods for common database operations:
+
+```rust
+// Insert a product using the model-specific method
+db.insert_product(&product).expect("Failed to insert product");
+
+// Retrieve a product by ID
+let retrieved_product = db.get_product(1).expect("Failed to retrieve product");
+
+// List all products
+let all_products = db.list_products().expect("Failed to list products");
+
+// Delete a product
+db.delete_product(1).expect("Failed to delete product");
+```
+
+These methods are available for all registered models:
+
+- `insert_product`, `get_product`, `delete_product`, `list_products` for Product
+- `insert_currency`, `get_currency`, `delete_currency`, `list_currencies` for Currency
+- `insert_sale`, `get_sale`, `delete_sale`, `list_sales` for Sale
+
+## License
+
+MIT
\ No newline at end of file
diff --git a/herodb/src/db/macros.rs b/herodb/src/db/macros.rs
new file mode 100644
index 0000000..e77a289
--- /dev/null
+++ b/herodb/src/db/macros.rs
@@ -0,0 +1,29 @@
+/// Macro to implement typed access methods on the DB struct for a given model
+#[macro_export]
+macro_rules! impl_model_methods {
+    ($model:ty, $singular:ident, $plural:ident) => {
+        impl DB {
+            paste::paste! {
+                /// Insert a model instance into the database
+                pub fn [<insert_ $singular>](&self, item: &$model) -> SledDBResult<()> {
+                    self.set(item)
+                }
+
+                /// Get a model instance by its ID
+                pub fn [<get_ $singular>](&self, id: u32) -> SledDBResult<$model> {
+                    self.get::<$model>(&id.to_string())
+                }
+
+                /// Delete a model instance by its ID
+                pub fn [<delete_ $singular>](&self, id: u32) -> SledDBResult<()> {
+                    self.delete::<$model>(&id.to_string())
+                }
+
+                /// List all model instances
+                pub fn [<list_ $plural>](&self) -> SledDBResult<Vec<$model>> {
+                    self.list::<$model>()
+                }
+            }
+        }
+    };
+}
\ No newline at end of file
diff --git a/herodb/src/db/mod.rs b/herodb/src/db/mod.rs
index 2b17435..fd73afa 100644
--- a/herodb/src/db/mod.rs
+++ b/herodb/src/db/mod.rs
@@ -1,6 +1,7 @@
 pub mod base;
 pub mod db;
+pub mod macros;
+pub mod model_methods;
 
-// Re-export everything needed at the module level
 pub use base::{SledDB, SledDBError, SledDBResult, Storable, SledModel};
-pub use db::{DB, DBBuilder, ModelRegistration, SledModelRegistration};
+pub use db::{DB, DBBuilder};
diff --git a/herodb/src/db/model_methods.rs b/herodb/src/db/model_methods.rs
new file mode 100644
index 0000000..415a610
--- /dev/null
+++ b/herodb/src/db/model_methods.rs
@@ -0,0 +1,15 @@
+use crate::db::db::DB;
+use crate::db::base::{SledDBResult, SledModel};
+use crate::impl_model_methods;
+use crate::models::biz::product::Product;
+use crate::models::biz::sale::Sale;
+use crate::models::biz::Currency;
+
+// Implement model-specific methods for Product
+impl_model_methods!(Product, product, products);
+
+// Implement model-specific methods for Sale
+impl_model_methods!(Sale, sale, sales);
+
+// Implement model-specific methods for Currency
+impl_model_methods!(Currency, currency, currencies);
\ No newline at end of file
diff --git a/herodb/src/lib.rs b/herodb/src/lib.rs
index f200d15..3b68f1e 100644
--- a/herodb/src/lib.rs
+++ b/herodb/src/lib.rs
@@ -6,10 +6,6 @@
 // Core modules
 mod db;
 mod error;
-pub mod server;
-
-// Domain-specific modules
-pub mod zaz;
 
 // Re-exports
 pub use error::Error;
diff --git a/herodb/src/models/biz/README.md b/herodb/src/models/biz/README.md
index f0b2f78..4aa684c 100644
--- a/herodb/src/models/biz/README.md
+++ b/herodb/src/models/biz/README.md
@@ -243,9 +243,27 @@ let mut sale = SaleBuilder::new()
 sale.update_status(SaleStatus::Completed);
 ```
 
-## Benefits of the Builder Pattern
+## Database Operations
+
+The library provides model-specific convenience methods for common database operations:
+
+```rust
+// Insert a product
+db.insert_product(&product).expect("Failed to insert product");
+
+// Retrieve a product by ID
+let retrieved_product = db.get_product(1).expect("Failed to retrieve product");
+
+// List all products
+let all_products = db.list_products().expect("Failed to list products");
+
+// Delete a product
+db.delete_product(1).expect("Failed to delete product");
+```
+
+These methods are available for all root objects:
+
+- `insert_product`, `get_product`, `delete_product`, `list_products` for Product
+- `insert_currency`, `get_currency`, `delete_currency`, `list_currencies` for Currency
+- `insert_sale`, `get_sale`, `delete_sale`, `list_sales` for Sale
 
-- You don't need to remember the order of parameters.
-- You get readable, self-documenting code.
-- It's easier to provide defaults or optional values.
-- Validation happens at build time, ensuring all required fields are provided.
\ No newline at end of file
diff --git a/herodb/src/server/api.rs b/herodb/src/server/api.rs
deleted file mode 100644
index 40c09e7..0000000
--- a/herodb/src/server/api.rs
+++ /dev/null
@@ -1,368 +0,0 @@
-//! API module for the HeroDB server
-
-use crate::core::DB;
-use crate::server::models::{ApiError, SuccessResponse, UserCreate, UserUpdate, SaleCreate, SaleStatusUpdate,
-    UserResponse, SuccessOrError
-};
-use crate::zaz::create_zaz_db;
-use crate::zaz::models::*;
-use crate::zaz::models::sale::{SaleStatus, SaleItem};
-use crate::zaz::models::product::Currency;
-use poem_openapi::{
-    param::Path,
-    payload::Json,
-    OpenApi,
-};
-use std::path::PathBuf;
-use std::sync::{Arc, Mutex};
-use chrono::Utc;
-
-/// API handler struct that holds the database connection
-pub struct Api {
-    db: Arc<Mutex<DB>>,
-}
-
-impl Api {
-    /// Create a new API instance with the given database path
-    pub fn new(db_path: PathBuf) -> Self {
-        // Create the DB
-        let db = match create_zaz_db(db_path) {
-            Ok(db) => db,
-            Err(e) => {
-                eprintln!("Failed to create DB: {}", e);
-                panic!("Failed to initialize database");
-            }
-        };
-
-        // Wrap in Arc<Mutex> for thread safety
-        Self {
-            db: Arc::new(Mutex::new(db)),
-        }
-    }
-}
-
-/// OpenAPI implementation for the API
-#[OpenApi]
-impl Api {
-    /// Get all users
-    #[oai(path = "/users", method = "get")]
-    async fn get_users(&self) -> Json<String> {
-        let db = self.db.lock().unwrap();
-        match db.list::<User>() {
-            Ok(users) => {
-                // Convert to JSON manually
-                let json_result = serde_json::to_string(&users).unwrap_or_else(|_| "[]".to_string());
-                Json(json_result)
-            }
-            Err(e) => {
-                eprintln!("Error listing users: {}", e);
-                Json("[]".to_string())
-            }
-        }
-    }
-
-    /// Get a user by ID
-    #[oai(path = "/users/:id", method = "get")]
-    async fn get_user(&self, id: Path<u32>) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        match db.get::<User>(&id.0.to_string()) {
-            Ok(user) => {
-                // Convert to JSON manually
-                let json_result = serde_json::to_string(&user).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            }
-            Err(e) => {
-                eprintln!("Error getting user: {}", e);
-                UserResponse::NotFound(Json(ApiError::not_found(id.0)))
-            }
-        }
-    }
-
-    /// Create a new user
-    #[oai(path = "/users", method = "post")]
-    async fn create_user(
-        &self,
-        user: Json<UserCreate>,
-    ) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        
-        // Find the next available ID
-        let users: Vec<User> = match db.list() {
-            Ok(users) => users,
-            Err(e) => {
-                eprintln!("Error listing users: {}", e);
-                return UserResponse::InternalError(Json(ApiError::internal_error("Failed to generate ID")));
-            }
-        };
-        
-        let next_id = users.iter().map(|u| u.id).max().unwrap_or(0) + 1;
-        
-        // Create the new user
-        let new_user = User::new(
-            next_id,
-            user.name.clone(),
-            user.email.clone(),
-            user.password.clone(),
-            user.company.clone(),
-            user.role.clone(),
-        );
-        
-        // Save the user
-        match db.set(&new_user) {
-            Ok(_) => {
-                let json_result = serde_json::to_string(&new_user).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            },
-            Err(e) => {
-                eprintln!("Error creating user: {}", e);
-                UserResponse::InternalError(Json(ApiError::internal_error("Failed to create user")))
-            }
-        }
-    }
-
-    /// Update a user
-    #[oai(path = "/users/:id", method = "put")]
-    async fn update_user(
-        &self,
-        id: Path<u32>,
-        user: Json<UserUpdate>,
-    ) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        
-        // Get the existing user
-        let existing_user: User = match db.get(&id.0.to_string()) {
-            Ok(user) => user,
-            Err(e) => {
-                eprintln!("Error getting user: {}", e);
-                return UserResponse::NotFound(Json(ApiError::not_found(id.0)));
-            }
-        };
-        
-        // Update the user
-        let updated_user = User {
-            id: existing_user.id,
-            name: user.name.clone().unwrap_or(existing_user.name),
-            email: user.email.clone().unwrap_or(existing_user.email),
-            password: user.password.clone().unwrap_or(existing_user.password),
-            company: user.company.clone().unwrap_or(existing_user.company),
-            role: user.role.clone().unwrap_or(existing_user.role),
-            created_at: existing_user.created_at,
-            updated_at: Utc::now(),
-        };
-        
-        // Save the updated user
-        match db.set(&updated_user) {
-            Ok(_) => {
-                let json_result = serde_json::to_string(&updated_user).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            },
-            Err(e) => {
-                eprintln!("Error updating user: {}", e);
-                UserResponse::InternalError(Json(ApiError::internal_error("Failed to update user")))
-            }
-        }
-    }
-
-    /// Delete a user
-    #[oai(path = "/users/:id", method = "delete")]
-    async fn delete_user(&self, id: Path<u32>) -> SuccessOrError {
-        let db = self.db.lock().unwrap();
-        
-        match db.delete::<User>(&id.0.to_string()) {
-            Ok(_) => SuccessOrError::Ok(Json(SuccessResponse {
-                success: true,
-                message: format!("User with ID {} deleted", id.0),
-            })),
-            Err(e) => {
-                eprintln!("Error deleting user: {}", e);
-                SuccessOrError::NotFound(Json(ApiError::not_found(id.0)))
-            }
-        }
-    }
-
-    /// Get all products
-    #[oai(path = "/products", method = "get")]
-    async fn get_products(&self) -> Json<String> {
-        let db = self.db.lock().unwrap();
-        match db.list::<Product>() {
-            Ok(products) => {
-                let json_result = serde_json::to_string(&products).unwrap_or_else(|_| "[]".to_string());
-                Json(json_result)
-            }
-            Err(e) => {
-                eprintln!("Error listing products: {}", e);
-                Json("[]".to_string())
-            }
-        }
-    }
-
-    /// Get a product by ID
-    #[oai(path = "/products/:id", method = "get")]
-    async fn get_product(&self, id: Path<u32>) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        match db.get::<Product>(&id.0.to_string()) {
-            Ok(product) => {
-                let json_result = serde_json::to_string(&product).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            }
-            Err(e) => {
-                eprintln!("Error getting product: {}", e);
-                UserResponse::NotFound(Json(ApiError::not_found(id.0)))
-            }
-        }
-    }
-
-    /// Get all sales
-    #[oai(path = "/sales", method = "get")]
-    async fn get_sales(&self) -> Json<String> {
-        let db = self.db.lock().unwrap();
-        match db.list::<Sale>() {
-            Ok(sales) => {
-                let json_result = serde_json::to_string(&sales).unwrap_or_else(|_| "[]".to_string());
-                Json(json_result)
-            }
-            Err(e) => {
-                eprintln!("Error listing sales: {}", e);
-                Json("[]".to_string())
-            }
-        }
-    }
-
-    /// Get a sale by ID
-    #[oai(path = "/sales/:id", method = "get")]
-    async fn get_sale(&self, id: Path<u32>) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        match db.get::<Sale>(&id.0.to_string()) {
-            Ok(sale) => {
-                let json_result = serde_json::to_string(&sale).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            }
-            Err(e) => {
-                eprintln!("Error getting sale: {}", e);
-                UserResponse::NotFound(Json(ApiError::not_found(id.0)))
-            }
-        }
-    }
-
-    /// Create a new sale
-    #[oai(path = "/sales", method = "post")]
-    async fn create_sale(
-        &self,
-        sale: Json<SaleCreate>,
-    ) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        
-        // Find the next available ID
-        let sales: Vec<Sale> = match db.list() {
-            Ok(sales) => sales,
-            Err(e) => {
-                eprintln!("Error listing sales: {}", e);
-                return UserResponse::InternalError(Json(ApiError::internal_error("Failed to generate ID")));
-            }
-        };
-        
-        let next_id = sales.iter().map(|s| s.id).max().unwrap_or(0) + 1;
-        
-        // Create the new sale
-        let mut new_sale = Sale::new(
-            next_id,
-            sale.company_id,
-            sale.buyer_name.clone(),
-            sale.buyer_email.clone(),
-            sale.currency_code.clone(),
-            SaleStatus::Pending,
-        );
-        
-        // Add items if provided
-        if let Some(items) = &sale.items {
-            for (i, item) in items.iter().enumerate() {
-                let item_id = (i + 1) as u32;
-                let active_till = Utc::now() + chrono::Duration::days(365); // Default 1 year
-                
-                let sale_item = SaleItem::new(
-                    item_id,
-                    next_id,
-                    item.product_id,
-                    item.name.clone(),
-                    item.quantity,
-                    Currency {
-                        amount: item.unit_price,
-                        currency_code: sale.currency_code.clone(),
-                    },
-                    active_till,
-                );
-                
-                new_sale.add_item(sale_item);
-            }
-        }
-        
-        // Save the sale
-        match db.set(&new_sale) {
-            Ok(_) => {
-                let json_result = serde_json::to_string(&new_sale).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            }
-            Err(e) => {
-                eprintln!("Error creating sale: {}", e);
-                UserResponse::InternalError(Json(ApiError::internal_error("Failed to create sale")))
-            }
-        }
-    }
-
-    /// Update a sale status
-    #[oai(path = "/sales/:id/status", method = "put")]
-    async fn update_sale_status(
-        &self,
-        id: Path<u32>,
-        status: Json<SaleStatusUpdate>,
-    ) -> UserResponse {
-        let db = self.db.lock().unwrap();
-        
-        // Get the existing sale
-        let mut existing_sale: Sale = match db.get(&id.0.to_string()) {
-            Ok(sale) => sale,
-            Err(e) => {
-                eprintln!("Error getting sale: {}", e);
-                return UserResponse::NotFound(Json(ApiError::not_found(id.0)));
-            }
-        };
-        
-        // Parse and update the status
-        let new_status = match status.parse_status() {
-            Ok(status) => status,
-            Err(e) => return UserResponse::InternalError(Json(e)),
-        };
-        
-        // Update the status
-        existing_sale.update_status(new_status);
-        
-        // Save the updated sale
-        match db.set(&existing_sale) {
-            Ok(_) => {
-                let json_result = serde_json::to_string(&existing_sale).unwrap_or_else(|_| "{}".to_string());
-                UserResponse::Ok(Json(json_result))
-            }
-            Err(e) => {
-                eprintln!("Error updating sale: {}", e);
-                UserResponse::InternalError(Json(ApiError::internal_error("Failed to update sale")))
-            }
-        }
-    }
-
-    /// Delete a sale
-    #[oai(path = "/sales/:id", method = "delete")]
-    async fn delete_sale(&self, id: Path<u32>) -> SuccessOrError {
-        let db = self.db.lock().unwrap();
-        
-        match db.delete::<Sale>(&id.0.to_string()) {
-            Ok(_) => SuccessOrError::Ok(Json(SuccessResponse {
-                success: true,
-                message: format!("Sale with ID {} deleted", id.0),
-            })),
-            Err(e) => {
-                eprintln!("Error deleting sale: {}", e);
-                SuccessOrError::NotFound(Json(ApiError::not_found(id.0)))
-            }
-        }
-    }
-}
diff --git a/herodb/src/server/extensions.rs b/herodb/src/server/extensions.rs
deleted file mode 100644
index 1af319f..0000000
--- a/herodb/src/server/extensions.rs
+++ /dev/null
@@ -1,289 +0,0 @@
-//! Extensions to make the zaz models compatible with OpenAPI
-//!
-//! This module adds the necessary traits and implementations to make the
-//! existing zaz models work with OpenAPI.
-
-use poem_openapi::types::{ToSchema, Type};
-use chrono::{DateTime, Utc};
-use crate::zaz::models::*;
-
-// Make DateTime<Utc> compatible with OpenAPI
-impl Type for DateTime<Utc> {
-    const IS_REQUIRED: bool = true;
-    
-    type RawValueType = String;
-    
-    type RawElementValueType = Self::RawValueType;
-    
-    fn name() -> std::borrow::Cow<'static, str> {
-        "DateTime".into()
-    }
-    
-    fn schema_ref() -> std::borrow::Cow<'static, str> {
-        "string".into()
-    }
-    
-    fn as_raw_value(&self) -> Option<Self::RawValueType> {
-        Some(self.to_rfc3339())
-    }
-    
-    fn raw_element_iter<'a>(
-        &'a self,
-    ) -> Box<dyn Iterator<Item = Self::RawElementValueType> + 'a> {
-        Box::new(self.as_raw_value().into_iter())
-    }
-}
-
-// Make Currency compatible with OpenAPI
-impl Type for Currency {
-    const IS_REQUIRED: bool = true;
-    
-    type RawValueType = serde_json::Value;
-    
-    type RawElementValueType = Self::RawValueType;
-    
-    fn name() -> std::borrow::Cow<'static, str> {
-        "Currency".into()
-    }
-    
-    fn schema_ref() -> std::borrow::Cow<'static, str> {
-        "object".into()
-    }
-    
-    fn as_raw_value(&self) -> Option<Self::RawValueType> {
-        Some(serde_json::json!({
-            "amount": self.amount,
-            "currency_code": self.currency_code
-        }))
-    }
-    
-    fn raw_element_iter<'a>(
-        &'a self,
-    ) -> Box<dyn Iterator<Item = Self::RawElementValueType> + 'a> {
-        Box::new(self.as_raw_value().into_iter())
-    }
-}
-
-// Make SaleStatus compatible with OpenAPI
-impl Type for SaleStatus {
-    const IS_REQUIRED: bool = true;
-    
-    type RawValueType = String;
-    
-    type RawElementValueType = Self::RawValueType;
-    
-    fn name() -> std::borrow::Cow<'static, str> {
-        "SaleStatus".into()
-    }
-    
-    fn schema_ref() -> std::borrow::Cow<'static, str> {
-        "string".into()
-    }
-    
-    fn as_raw_value(&self) -> Option<Self::RawValueType> {
-        Some(match self {
-            SaleStatus::Pending => "pending".to_string(),
-            SaleStatus::Completed => "completed".to_string(),
-            SaleStatus::Cancelled => "cancelled".to_string(),
-        })
-    }
-    
-    fn raw_element_iter<'a>(
-        &'a self,
-    ) -> Box<dyn Iterator<Item = Self::RawElementValueType> + 'a> {
-        Box::new(self.as_raw_value().into_iter())
-    }
-}
-
-// Schema generation for User
-impl ToSchema for User {
-    fn schema() -> poem_openapi::registry::MetaSchema {
-        let mut schema = poem_openapi::registry::MetaSchema::new("User");
-        schema.properties.insert(
-            "id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "name".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "email".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "company".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "role".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "created_at".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "updated_at".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        // Note: We exclude password for security reasons
-        schema
-    }
-}
-
-// Schema generation for Product
-impl ToSchema for Product {
-    fn schema() -> poem_openapi::registry::MetaSchema {
-        let mut schema = poem_openapi::registry::MetaSchema::new("Product");
-        schema.properties.insert(
-            "id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "company_id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "name".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "description".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "price".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <Currency as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "status".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "created_at".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "updated_at".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema
-    }
-}
-
-// Schema generation for SaleItem
-impl ToSchema for SaleItem {
-    fn schema() -> poem_openapi::registry::MetaSchema {
-        let mut schema = poem_openapi::registry::MetaSchema::new("SaleItem");
-        schema.properties.insert(
-            "id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "sale_id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "product_id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "name".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "quantity".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(i32::schema())),
-        );
-        schema.properties.insert(
-            "unit_price".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <Currency as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "subtotal".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <Currency as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "active_till".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema
-    }
-}
-
-// Schema generation for Sale
-impl ToSchema for Sale {
-    fn schema() -> poem_openapi::registry::MetaSchema {
-        let mut schema = poem_openapi::registry::MetaSchema::new("Sale");
-        schema.properties.insert(
-            "id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "company_id".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(u32::schema())),
-        );
-        schema.properties.insert(
-            "buyer_name".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "buyer_email".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(String::schema())),
-        );
-        schema.properties.insert(
-            "total_amount".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <Currency as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "status".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <SaleStatus as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "sale_date".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "created_at".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "updated_at".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <DateTime<Utc> as ToSchema>::schema(),
-            )),
-        );
-        schema.properties.insert(
-            "items".to_string(),
-            poem_openapi::registry::MetaSchemaRef::Inline(Box::new(
-                <Vec<SaleItem> as ToSchema>::schema(),
-            )),
-        );
-        schema
-    }
-}
\ No newline at end of file
diff --git a/herodb/src/server/instructions.md b/herodb/src/server/instructions.md
deleted file mode 100644
index 98d610b..0000000
--- a/herodb/src/server/instructions.md
+++ /dev/null
@@ -1,92 +0,0 @@
-You're a Rust developer assistant.
-
-Please generate a complete Rust web server using `poem` and `poem-openapi`. It should:
-
-1. Create a basic `#[OpenApi]` interface.
-2. Automatically generate and serve an OpenAPI 3.0 spec at `/api/openapi.json`.
-3. Serve a Swagger UI interface at `/docs`.
-4. Expose a function I define in another module (e.g., `my_logic::do_something()`).
-5. The endpoint should be `/do` (HTTP GET) and return a JSON response.
-
-Use these crates:
-- `poem`
-- `poem-openapi`
-- `tokio`
-- `uuid` (optional, if needed)
-
-We want to create crud and also other methods of herodb/src/zaz/models
-
-To see how we call this model logic see herodb/src/zaz/cmd/examples.rs
-
-And use it inside the API handler.
-
-The project should have:
-- `main.rs` (entry point)
-- `sale.rs` (logic per file e.g. sale, product, ...)
-- Clear type annotations and minimal boilerplate.
-```
-
----
-
-## 🧪 Example Output from AI Based on That Prompt
-
-### `Cargo.toml`
-
-```toml
-[package]
-name = "poem-api-server"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-poem = "1"
-poem-openapi = "3"
-tokio = { version = "1", features = ["full"] }
-```
-
-
-### `src/main.rs`
-
-```rust
-use poem::{listener::TcpListener, Route, Server};
-use poem_openapi::{payload::Json, OpenApi, OpenApiService};
-
-mod my_logic;
-
-struct Api;
-
-#[OpenApi]
-impl Api {
-    #[oai(path = "/do", method = "get")]
-    async fn do_action(&self) -> Json<String> {
-        Json(my_logic::do_something())
-    }
-}
-
-#[tokio::main]
-async fn main() {
-    let api_service =
-        OpenApiService::new(Api, "My API", "1.0").server("http://localhost:3000/api");
-
-    let ui = api_service.swagger_ui();
-
-    let app = Route::new()
-        .nest("/api", api_service)
-        .nest("/docs", ui);
-
-    Server::new(TcpListener::bind("127.0.0.1:3000"))
-        .run(app)
-        .await
-        .unwrap();
-}
-```
-
----
-
-### ✅ Result
-
-- Open `/api/do` → Calls your logic and returns a JSON response.
-- Open `/docs` → Interactive Swagger UI
-- Open `/api/openapi.json` → Full OpenAPI spec
-
----
diff --git a/herodb/src/server/mod.rs b/herodb/src/server/mod.rs
deleted file mode 100644
index ecc3db2..0000000
--- a/herodb/src/server/mod.rs
+++ /dev/null
@@ -1,41 +0,0 @@
-//! Server module for the HeroDB API
-//! 
-//! This module provides a web API server using Poem and OpenAPI.
-
-pub mod api;
-pub mod models;
-
-use poem::{
-    listener::TcpListener, 
-    Route,
-    Server
-};
-use poem_openapi::OpenApiService;
-use std::path::PathBuf;
-
-/// Start the API server
-pub async fn start_server(db_path: PathBuf, host: &str, port: u16) -> Result<(), std::io::Error> {
-    // Create the API service
-    let api_service = OpenApiService::new(
-        api::Api::new(db_path),
-        "HeroDB API",
-        env!("CARGO_PKG_VERSION"),
-    )
-    .server(format!("http://{}:{}/api", host, port));
-
-    // Create Swagger UI
-    let swagger_ui = api_service.swagger_ui();
-
-    // Create the main route
-    let app = Route::new()
-        .nest("/api", api_service)
-        .nest("/swagger", swagger_ui);
-
-    // Start the server
-    println!("Starting server on {}:{}", host, port);
-    println!("API Documentation: http://{}:{}/swagger", host, port);
-    
-    Server::new(TcpListener::bind(format!("{}:{}", host, port)))
-        .run(app)
-        .await
-}
\ No newline at end of file
diff --git a/herodb/src/server/models.rs b/herodb/src/server/models.rs
deleted file mode 100644
index b368458..0000000
--- a/herodb/src/server/models.rs
+++ /dev/null
@@ -1,145 +0,0 @@
-//! API models for the HeroDB server
-
-use crate::zaz::models::sale::SaleStatus;
-use poem_openapi::{Object, ApiResponse};
-use serde::{Deserialize, Serialize};
-
-/// API error response
-#[derive(Debug, Object)]
-pub struct ApiError {
-    /// Error code
-    pub code: u16,
-    /// Error message
-    pub message: String,
-}
-
-impl ApiError {
-    pub fn not_found(id: impl ToString) -> Self {
-        Self {
-            code: 404,
-            message: format!("Resource with ID {} not found", id.to_string()),
-        }
-    }
-
-    pub fn internal_error(msg: impl ToString) -> Self {
-        Self {
-            code: 500,
-            message: msg.to_string(),
-        }
-    }
-}
-
-/// API success response
-#[derive(Debug, Object)]
-pub struct SuccessResponse {
-    /// Success flag
-    pub success: bool,
-    /// Success message
-    pub message: String,
-}
-
-/// User create request
-#[derive(Debug, Object)]
-pub struct UserCreate {
-    /// User name
-    pub name: String,
-    /// User email
-    pub email: String,
-    /// User password
-    pub password: String,
-    /// User company
-    pub company: String,
-    /// User role
-    pub role: String,
-}
-
-/// User update request
-#[derive(Debug, Object)]
-pub struct UserUpdate {
-    /// User name
-    #[oai(skip_serializing_if_is_none)]
-    pub name: Option<String>,
-    /// User email
-    #[oai(skip_serializing_if_is_none)]
-    pub email: Option<String>,
-    /// User password
-    #[oai(skip_serializing_if_is_none)]
-    pub password: Option<String>,
-    /// User company
-    #[oai(skip_serializing_if_is_none)]
-    pub company: Option<String>,
-    /// User role
-    #[oai(skip_serializing_if_is_none)]
-    pub role: Option<String>,
-}
-
-/// Sale item create request
-#[derive(Debug, Serialize, Deserialize, Object)]
-pub struct SaleItemCreate {
-    /// Product ID
-    pub product_id: u32,
-    /// Item name
-    pub name: String,
-    /// Quantity
-    pub quantity: i32,
-    /// Unit price
-    pub unit_price: f64,
-}
-
-/// Sale create request
-#[derive(Debug, Serialize, Deserialize, Object)]
-pub struct SaleCreate {
-    /// Company ID
-    pub company_id: u32,
-    /// Buyer name
-    pub buyer_name: String,
-    /// Buyer email
-    pub buyer_email: String,
-    /// Currency code
-    pub currency_code: String,
-    /// Items
-    #[oai(skip_serializing_if_is_none)]
-    pub items: Option<Vec<SaleItemCreate>>,
-}
-
-/// Sale status update request
-#[derive(Debug, Serialize, Deserialize, Object)]
-pub struct SaleStatusUpdate {
-    /// New status
-    pub status: String,
-}
-
-impl SaleStatusUpdate {
-    pub fn parse_status(&self) -> Result<SaleStatus, ApiError> {
-        match self.status.to_lowercase().as_str() {
-            "pending" => Ok(SaleStatus::Pending),
-            "completed" => Ok(SaleStatus::Completed),
-            "cancelled" => Ok(SaleStatus::Cancelled),
-            _ => Err(ApiError {
-                code: 400,
-                message: format!("Invalid status: {}", self.status),
-            })
-        }
-    }
-}
-
-// Define API responses
-#[derive(Debug, ApiResponse)]
-pub enum UserResponse {
-    #[oai(status = 200)]
-    Ok(poem_openapi::payload::Json<String>),
-    #[oai(status = 404)]
-    NotFound(poem_openapi::payload::Json<ApiError>),
-    #[oai(status = 500)]
-    InternalError(poem_openapi::payload::Json<ApiError>),
-}
-
-#[derive(Debug, ApiResponse)]
-pub enum SuccessOrError {
-    #[oai(status = 200)]
-    Ok(poem_openapi::payload::Json<SuccessResponse>),
-    #[oai(status = 404)]
-    NotFound(poem_openapi::payload::Json<ApiError>),
-    #[oai(status = 500)]
-    InternalError(poem_openapi::payload::Json<ApiError>),
-}
\ No newline at end of file