diff --git a/build/rust/Cargo.toml b/build/rust/Cargo.toml
index fd0fdb2..2abeca2 100644
--- a/build/rust/Cargo.toml
+++ b/build/rust/Cargo.toml
@@ -23,7 +23,7 @@ name = "tucana"
 path = "src/lib.rs"
 
 [features]
-shared = []
-aquila = ["shared"]
-sagittarius = ["shared"]
+default = ["aquila", "sagittarius"]
+aquila = []
+sagittarius = []
 all = ["aquila", "sagittarius"]
diff --git a/build/rust/README.md b/build/rust/README.md
new file mode 100644
index 0000000..0f9584e
--- /dev/null
+++ b/build/rust/README.md
@@ -0,0 +1,154 @@
+# Tucana - Protobuf gRPC Interface for Rust
+
+[![Crate](https://img.shields.io/crates/v/tucana.svg)](https://crates.io/crates/tucana)
+[![Documentation](https://docs.rs/tucana/badge.svg)](https://docs.rs/tucana)
+
+The Rust Code0 gRPC library (for internal service communication) providing interfaces for internal service communication along with helper utilities for working with the generated types.
+
+## Features
+
+This crate provides modular functionality through feature flags:
+
+- **shared** - Core data types and helper utilities for working with Protobuf messages (enabled by default)
+- **aquila** - gRPC services and types for Aquila component communication
+- **sagittarius** - gRPC services and types for Sagittarius component communication
+
+## Overview
+
+Tucana serves as the interface layer for internal service communication:
+
+1. Generated Protobuf types for service messages (Flow, DataType, NodeFunction, etc.)
+2. gRPC service definitions for inter-component communication
+3. Helper utilities for manipulating Protobuf-generated types
+
+## Core Functionality
+
+### Protobuf Message Handling
+
+The library provides utilities for working with the Protobuf-generated types, especially the Value and Struct types used throughout the services.
+
+### Path-based Value Access
+
+Access nested values in complex Protobuf message structures using dot notation:
+
+```rust
+use tucana::shared::helper::path;
+use tucana::shared::Value;
+
+// Get values of specific types from Protobuf messages
+let flow_type = path::get_string("type", &flow_value);
+let project_id = path::get_number("project_id", &flow_value);
+let has_starting_node = path::exists_path("starting_node", &flow_value);
+
+// Update values in a message
+let updated_flow = path::set_value("input_type_identifier", &flow_value, new_type_value);
+```
+
+### JSON Conversion for Protobuf Messages
+
+Convert between Protobuf messages and JSON for debugging or external interfaces:
+
+```rust
+use tucana::shared::helper::value;
+use tucana::shared::Flow;
+use serde_json;
+
+// Create a Flow message
+let flow = Flow {
+    flow_id: 42,
+    project_id: 100,
+    r#type: "process".to_string(),
+    data_types: vec![],
+    input_type_identifier: Some("String".to_string()),
+    return_type_identifier: Some("Number".to_string()),
+    settings: vec![],
+    starting_node: None,
+};
+
+// Serialize to JSON
+let flow_json = serde_json::to_string(&flow).expect("Serialization failed");
+
+// Parse back from JSON
+let parsed_flow: Flow = serde_json::from_str(&flow_json).expect("Deserialization failed");
+```
+
+## Service Communication
+
+The library contains the generated Protobuf interfaces for the internal microservices:
+
+```rust
+// Import the service needed for your component
+#[cfg(feature = "aquila")]
+use tucana::aquila::AquilaServiceClient;
+
+#[cfg(feature = "sagittarius")]
+use tucana::sagittarius::SagittariusServiceClient;
+```
+
+## Advanced Usage
+
+### Working with Complex Protobuf Messages
+
+```rust
+use tucana::shared::helper::path;
+use tucana::shared::DataType;
+use tucana::shared::data_type::Variant;
+
+// Create a data type
+let data_type = DataType {
+    variant: Variant::Primitive as i32,
+    identifier: "string".to_string(),
+    name: vec![],
+    rules: vec![],
+    input_types: vec![],
+    return_type: None,
+    parent_type_identifier: None,
+};
+
+// Use helper functions to work with nested messages
+let struct_value = path::get_struct("settings.display", &flow_value);
+let rules_list = path::get_list("data_types.0.rules", &flow_value);
+```
+
+## Examples
+
+### Manipulating Flow Messages
+
+```rust
+use tucana::shared::{Flow, NodeFunction, Value};
+use tucana::shared::value::Kind;
+use tucana::shared::helper::{path, value};
+use serde_json;
+
+// Create a Flow message
+let flow = Flow {
+    flow_id: 1,
+    project_id: 2,
+    r#type: "standard".to_string(),
+    data_types: vec![],
+    input_type_identifier: Some("String".to_string()),
+    return_type_identifier: None,
+    settings: vec![],
+    starting_node: None,
+};
+
+// Serialize to JSON (for external API or storage)
+let json_str = serde_json::to_string(&flow).expect("Serialization failed");
+
+// Parse back from JSON
+let parsed_flow: Flow = serde_json::from_str(&json_str).expect("Deserialization failed");
+
+// Convert complex nested values
+let json_config = serde_json::json!({
+    "flow": {
+        "name": "My Flow",
+        "version": 1.0,
+        "active": true
+    }
+});
+let proto_value = value::from_json_value(json_config);
+
+// Access and modify nested properties
+let flow_name = path::get_string("flow.name", &proto_value);
+let is_active = path::get_bool("flow.active", &proto_value);
+```
diff --git a/build/rust/src/lib.rs b/build/rust/src/lib.rs
index 2b0aa65..0af1367 100644
--- a/build/rust/src/lib.rs
+++ b/build/rust/src/lib.rs
@@ -1,4 +1,3 @@
-#[cfg(feature = "shared")]
 pub mod shared {
     pub mod helper;