diff --git a/Cargo.toml b/Cargo.toml
index 14e5961..7b04509 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,51 +1,7 @@
-[package]
-name = "gateway_rs"
-version = "0.1.0"
-edition = "2021"
-
-[dependencies]
-# Async runtime
-tokio = { version = "1.49", features = ["full"] }
-
-# Web framework
-axum = { version = "0.8", features = ["ws"] }
-tower-http = { version = "0.6", features = ["cors", "fs"] }
-
-# Database
-sqlx = { version = "0.8", features = ["runtime-tokio", "postgres", "chrono", "uuid", "json"] }
-
-# Serialization
-serde = { version = "1.0", features = ["derive"] }
-serde_json = "1.0"
-serde_with = "3.0"
-async-stream = "0.3"
-
-# Time handling
-chrono = "0.4"
-time = "0.3"
-
-# UUID
-uuid = { version = "1.21", features = ["serde", "v4"] }
-
-# OPC UA
-async-opcua = { version = "0.18", features = ["client"] }
-
-# Logging
-tracing = "0.1"
-tracing-subscriber = { version = "0.3", features = ["env-filter", "time", "json"] }
-tracing-appender = "0.2"
-
-# Environment variables
-dotenv = "0.15"
-
-# Validation
-validator = { version = "0.20", features = ["derive"] }
-
-# Error handling
-anyhow = "1.0"
-fs2 = "0.4"
-
-[target.'cfg(windows)'.dependencies]
-tray-icon = "0.15"
-winit = "0.30"
-webbrowser = "0.8"
+[workspace]
+members = [
+  "crates/plc_platform_core",
+  "crates/app_feeder_distributor",
+  "crates/app_operation_system",
+]
+resolver = "2"
diff --git a/crates/app_feeder_distributor/Cargo.toml b/crates/app_feeder_distributor/Cargo.toml
new file mode 100644
index 0000000..9694adf
--- /dev/null
+++ b/crates/app_feeder_distributor/Cargo.toml
@@ -0,0 +1,21 @@
+[package]
+name = "app_feeder_distributor"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+plc_platform_core = { path = "../plc_platform_core" }
+tokio = { version = "1.49", features = ["full"] }
+axum = { version = "0.8", features = ["ws"] }
+tower-http = { version = "0.6", features = ["cors", "fs"] }
+tracing = "0.1"
+dotenv = "0.15"
+
+[target.'cfg(windows)'.dependencies]
+tray-icon = "0.15"
+winit = "0.30"
+webbrowser = "0.8"
+
+[[bin]]
+name = "app_feeder_distributor"
+path = "src/main.rs"
diff --git a/crates/app_operation_system/Cargo.toml b/crates/app_operation_system/Cargo.toml
new file mode 100644
index 0000000..85d661f
--- /dev/null
+++ b/crates/app_operation_system/Cargo.toml
@@ -0,0 +1,16 @@
+[package]
+name = "app_operation_system"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+plc_platform_core = { path = "../plc_platform_core" }
+tokio = { version = "1.49", features = ["full"] }
+axum = { version = "0.8", features = ["ws"] }
+tower-http = { version = "0.6", features = ["cors", "fs"] }
+tracing = "0.1"
+dotenv = "0.15"
+
+[[bin]]
+name = "app_operation_system"
+path = "src/main.rs"
diff --git a/crates/plc_platform_core/Cargo.toml b/crates/plc_platform_core/Cargo.toml
new file mode 100644
index 0000000..f95cec4
--- /dev/null
+++ b/crates/plc_platform_core/Cargo.toml
@@ -0,0 +1,28 @@
+[package]
+name = "plc_platform_core"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+tokio = { version = "1.49", features = ["full"] }
+axum = { version = "0.8", features = ["ws"] }
+tower-http = { version = "0.6", features = ["cors", "fs"] }
+sqlx = { version = "0.8", features = ["runtime-tokio", "postgres", "chrono", "uuid", "json"] }
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+serde_with = "3.0"
+async-stream = "0.3"
+chrono = "0.4"
+time = "0.3"
+uuid = { version = "1.21", features = ["serde", "v4"] }
+async-opcua = { version = "0.18", features = ["client"] }
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter", "time", "json"] }
+tracing-appender = "0.2"
+dotenv = "0.15"
+validator = { version = "0.20", features = ["derive"] }
+anyhow = "1.0"
+fs2 = "0.4"
+
+[lib]
+path = "src/lib.rs"