diff --git a/Cargo.toml b/Cargo.toml
index 26b0421..531611d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,15 +8,15 @@ edition = "2021"
 [workspace]
 resolver = "2"
 
-members = ["smip_core", "smip_proc_macros", "someip_types", "vsomeip_compat"]
+members = ["crates/smip_core", "crates/smip_proc_macros", "crates/someip_types", "crates/vsomeip_compat"]
 
 
 [dependencies]
-smip_core = {path = "smip_core" }
+smip_core = {path = "crates/smip_core" }
 # smip_al = { path = "smip_al" }
-smip_proc_macros = {path = "smip_proc_macros"}
-someip_types = {path = "someip_types"}
-vsomeip_compat = {path = "vsomeip_compat"}
+smip_proc_macros = {path = "crates/smip_proc_macros"}
+someip_types = {path = "crates/someip_types"}
+vsomeip_compat = {path = "crates/vsomeip_compat"}
 
 [dev-dependencies]
 rand = "0.8"
diff --git a/crates/smip_al/Cargo.toml b/crates/smip_al/Cargo.toml
new file mode 100644
index 0000000..686a291
--- /dev/null
+++ b/crates/smip_al/Cargo.toml
@@ -0,0 +1,10 @@
+[package]
+name = "smip_al"
+version = "0.1.0"
+edition = "2021"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+vsomeip-rs = {git = "ssh://git@github.com/tw-sdv/vsomeip-rs"}
+someip_types = { path = "../someip_types" }
\ No newline at end of file
diff --git a/crates/smip_al/src/implementations/mod.rs b/crates/smip_al/src/implementations/mod.rs
new file mode 100644
index 0000000..e9e8ff2
--- /dev/null
+++ b/crates/smip_al/src/implementations/mod.rs
@@ -0,0 +1,2 @@
+mod noop;
+mod vsomeip;
\ No newline at end of file
diff --git a/crates/smip_al/src/implementations/noop.rs b/crates/smip_al/src/implementations/noop.rs
new file mode 100644
index 0000000..e69de29
diff --git a/crates/smip_al/src/implementations/vsomeip.rs b/crates/smip_al/src/implementations/vsomeip.rs
new file mode 100644
index 0000000..4f4bcbb
--- /dev/null
+++ b/crates/smip_al/src/implementations/vsomeip.rs
@@ -0,0 +1,76 @@
+use std::collections::HashMap;
+
+use crate::*;
+pub struct VSomeIPService {
+    config: ServiceConfig,
+    methods: HashMap<MethodId, Box<dyn FnMut(vsomeip_rs::Message) + 'static>>
+}
+
+impl Service for VSomeIPService {
+    type B = vsomeip_rs::Application;
+    
+    fn with_method<F>(&mut self, method_id: MethodId, handler: F) where F: FnMut(<Self::B as Backend>::M) + 'static {
+        self.methods.insert(method_id, Box::new(handler));
+    }
+}
+
+impl Backend for vsomeip_rs::Application {
+    type S = VSomeIPService;
+    type M = vsomeip_rs::Message;
+    type P = vsomeip_rs::Payload;
+    
+    fn init(name: impl AsRef<str>) -> Self {
+        vsomeip_rs::Runtime::get().create_application_with_name(name)
+    }
+    fn create_service(config: &ServiceConfig) -> Self::S {
+        VSomeIPService {
+            config: config.clone(),
+            methods: HashMap::new()
+        }
+    }
+    fn offer_service(&self, service: &Self::S) {
+        self.offer_service(service.config.id, service.config.instance_id, service.config.major_version, service.config.minor_version);
+        
+        for (method_id, handler) in service.methods {
+            self.register_message_handler(service_id, instance_id, method_id, f)
+        }
+    }
+    fn create_payload(data: &[u8]) -> Self::P {
+        vsomeip_rs::Payload::with_data(data)
+    }
+    fn create_message(header: &SOMEIpHeader, reliable: bool, payload: Self::P) -> Self::M {
+        let mut message = vsomeip_rs::Message::new(reliable);
+
+        message.set_payload(&payload);
+        message.set_service(header.service_id);
+        message.set_method(header.method_id);
+        message.set_return_code(header.return_code.into());
+        // message.set_message_type();
+        // message.set_client();
+        // message
+    }
+}
+
+
+impl Payload for vsomeip_rs::Payload {
+    type B = vsomeip_rs::Application;
+    
+    fn data(&self) -> &[u8] {
+        self.get_data()
+    }
+
+    fn with_data(data: &[u8]) -> Self where Self: Sized {
+        vsomeip_rs::Payload::with_data(data)
+    }
+}
+
+impl Message for vsomeip_rs::Message {
+    type B = vsomeip_rs::Application;
+    
+    fn header(&self) -> &S {
+        // self.header()
+    }
+    fn payload(&self) -> &vsomeip_rs::Payload {
+        self.get_payload()
+    }
+}
diff --git a/crates/smip_al/src/lib.rs b/crates/smip_al/src/lib.rs
new file mode 100644
index 0000000..59775bd
--- /dev/null
+++ b/crates/smip_al/src/lib.rs
@@ -0,0 +1,60 @@
+// mod implementations;
+
+use std::net::IpAddr;
+use someip_types::*;
+
+#[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
+pub enum ConnectionType {
+    #[default]
+    Tcp,
+    Udp
+}
+
+#[derive(Debug, Clone)]
+pub struct ServiceConfig {
+    pub name: String,
+    pub id: ServiceId, 
+    pub instance_id: InstanceId,
+    pub address: IpAddr,
+    pub major_version: MajorVersion,
+    pub minor_version: MinorVersion,
+    pub port: u16,
+    pub connection_type: ConnectionType
+}
+
+pub trait Service {
+    type B: Backend;
+    fn with_method<F>(&mut self, method_id: MethodId, handler: F) where F: FnMut(<Self::B as Backend>::M) + 'static;
+}
+
+pub trait Message {
+    type B: Backend;
+    fn header(&self) -> &SOMEIpHeader;
+    fn payload(&self) -> &<Self::B as Backend>::P;
+}
+
+pub trait Payload {
+    type B: Backend;
+    fn with_data(data: &[u8]) -> Self where Self: Sized;
+    fn data(&self) -> &[u8];
+}
+
+pub trait Backend {
+    type S: Service;
+    type M: Message;
+    type P: Payload;
+    fn init(name: impl AsRef<str>) -> Self;
+    fn create_service(config: &ServiceConfig) -> Self::S;
+    fn offer_service(&self, service: &Self::S);
+    fn create_payload(data: &[u8]) -> Self::P;
+    fn create_message(header: &SOMEIpHeader, reliable: bool, payload: Self::P) -> Self::M;
+}
+
+
+// vsomeip-rs
+// application.init()
+
+
+// let service1 = Service::new(config).method(method_id, |message| {...});
+// backend.offer_service(service1);
+// backend.start();
\ No newline at end of file
diff --git a/smip_core/Cargo.toml b/crates/smip_core/Cargo.toml
similarity index 100%
rename from smip_core/Cargo.toml
rename to crates/smip_core/Cargo.toml
diff --git a/smip_core/src/client.rs b/crates/smip_core/src/client.rs
similarity index 100%
rename from smip_core/src/client.rs
rename to crates/smip_core/src/client.rs
diff --git a/smip_core/src/error.rs b/crates/smip_core/src/error.rs
similarity index 100%
rename from smip_core/src/error.rs
rename to crates/smip_core/src/error.rs
diff --git a/smip_core/src/lib.rs b/crates/smip_core/src/lib.rs
similarity index 100%
rename from smip_core/src/lib.rs
rename to crates/smip_core/src/lib.rs
diff --git a/smip_core/src/runtime.rs b/crates/smip_core/src/runtime.rs
similarity index 100%
rename from smip_core/src/runtime.rs
rename to crates/smip_core/src/runtime.rs
diff --git a/smip_core/src/types.rs b/crates/smip_core/src/types.rs
similarity index 100%
rename from smip_core/src/types.rs
rename to crates/smip_core/src/types.rs
diff --git a/smip_proc_macros/Cargo.toml b/crates/smip_proc_macros/Cargo.toml
similarity index 93%
rename from smip_proc_macros/Cargo.toml
rename to crates/smip_proc_macros/Cargo.toml
index df8f2c8..f481a75 100644
--- a/smip_proc_macros/Cargo.toml
+++ b/crates/smip_proc_macros/Cargo.toml
@@ -18,4 +18,4 @@ someip_types = {path = "../someip_types"}
 
 [dev-dependencies]
 trybuild = "1.0"
-smip = { path = "../" }
\ No newline at end of file
+smip = { path = "../../" }
\ No newline at end of file
diff --git a/smip_proc_macros/src/lib.rs b/crates/smip_proc_macros/src/lib.rs
similarity index 100%
rename from smip_proc_macros/src/lib.rs
rename to crates/smip_proc_macros/src/lib.rs
diff --git a/smip_proc_macros/src/methods.rs b/crates/smip_proc_macros/src/methods.rs
similarity index 100%
rename from smip_proc_macros/src/methods.rs
rename to crates/smip_proc_macros/src/methods.rs
diff --git a/smip_proc_macros/src/service.rs b/crates/smip_proc_macros/src/service.rs
similarity index 100%
rename from smip_proc_macros/src/service.rs
rename to crates/smip_proc_macros/src/service.rs
diff --git a/smip_proc_macros/tests/method-no-args.rs b/crates/smip_proc_macros/tests/method-no-args.rs
similarity index 100%
rename from smip_proc_macros/tests/method-no-args.rs
rename to crates/smip_proc_macros/tests/method-no-args.rs
diff --git a/smip_proc_macros/tests/method-no-return.rs b/crates/smip_proc_macros/tests/method-no-return.rs
similarity index 100%
rename from smip_proc_macros/tests/method-no-return.rs
rename to crates/smip_proc_macros/tests/method-no-return.rs
diff --git a/smip_proc_macros/tests/ui-fail/method-extra-args.rs b/crates/smip_proc_macros/tests/ui-fail/method-extra-args.rs
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/method-extra-args.rs
rename to crates/smip_proc_macros/tests/ui-fail/method-extra-args.rs
diff --git a/smip_proc_macros/tests/ui-fail/method-extra-args.stderr b/crates/smip_proc_macros/tests/ui-fail/method-extra-args.stderr
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/method-extra-args.stderr
rename to crates/smip_proc_macros/tests/ui-fail/method-extra-args.stderr
diff --git a/smip_proc_macros/tests/ui-fail/method-generic.rs b/crates/smip_proc_macros/tests/ui-fail/method-generic.rs
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/method-generic.rs
rename to crates/smip_proc_macros/tests/ui-fail/method-generic.rs
diff --git a/smip_proc_macros/tests/ui-fail/method-generic.stderr b/crates/smip_proc_macros/tests/ui-fail/method-generic.stderr
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/method-generic.stderr
rename to crates/smip_proc_macros/tests/ui-fail/method-generic.stderr
diff --git a/smip_proc_macros/tests/ui-fail/method-no-id.rs b/crates/smip_proc_macros/tests/ui-fail/method-no-id.rs
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/method-no-id.rs
rename to crates/smip_proc_macros/tests/ui-fail/method-no-id.rs
diff --git a/smip_proc_macros/tests/ui-fail/method-no-id.stderr b/crates/smip_proc_macros/tests/ui-fail/method-no-id.stderr
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/method-no-id.stderr
rename to crates/smip_proc_macros/tests/ui-fail/method-no-id.stderr
diff --git a/smip_proc_macros/tests/ui-fail/methods-multiple-impls.rs b/crates/smip_proc_macros/tests/ui-fail/methods-multiple-impls.rs
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/methods-multiple-impls.rs
rename to crates/smip_proc_macros/tests/ui-fail/methods-multiple-impls.rs
diff --git a/smip_proc_macros/tests/ui-fail/methods-multiple-impls.stderr b/crates/smip_proc_macros/tests/ui-fail/methods-multiple-impls.stderr
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/methods-multiple-impls.stderr
rename to crates/smip_proc_macros/tests/ui-fail/methods-multiple-impls.stderr
diff --git a/smip_proc_macros/tests/ui-fail/methods-trait-impl.rs b/crates/smip_proc_macros/tests/ui-fail/methods-trait-impl.rs
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/methods-trait-impl.rs
rename to crates/smip_proc_macros/tests/ui-fail/methods-trait-impl.rs
diff --git a/smip_proc_macros/tests/ui-fail/methods-trait-impl.stderr b/crates/smip_proc_macros/tests/ui-fail/methods-trait-impl.stderr
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/methods-trait-impl.stderr
rename to crates/smip_proc_macros/tests/ui-fail/methods-trait-impl.stderr
diff --git a/smip_proc_macros/tests/ui-fail/service-no-id.rs b/crates/smip_proc_macros/tests/ui-fail/service-no-id.rs
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/service-no-id.rs
rename to crates/smip_proc_macros/tests/ui-fail/service-no-id.rs
diff --git a/smip_proc_macros/tests/ui-fail/service-no-id.stderr b/crates/smip_proc_macros/tests/ui-fail/service-no-id.stderr
similarity index 100%
rename from smip_proc_macros/tests/ui-fail/service-no-id.stderr
rename to crates/smip_proc_macros/tests/ui-fail/service-no-id.stderr
diff --git a/someip_types/Cargo.toml b/crates/someip_types/Cargo.toml
similarity index 100%
rename from someip_types/Cargo.toml
rename to crates/someip_types/Cargo.toml
diff --git a/someip_types/src/lib.rs b/crates/someip_types/src/lib.rs
similarity index 100%
rename from someip_types/src/lib.rs
rename to crates/someip_types/src/lib.rs
diff --git a/vsomeip_compat/Cargo.toml b/crates/vsomeip_compat/Cargo.toml
similarity index 100%
rename from vsomeip_compat/Cargo.toml
rename to crates/vsomeip_compat/Cargo.toml
diff --git a/vsomeip_compat/src/lib.rs b/crates/vsomeip_compat/src/lib.rs
similarity index 100%
rename from vsomeip_compat/src/lib.rs
rename to crates/vsomeip_compat/src/lib.rs
diff --git a/vsomeip_config/dashboard.json b/crates/vsomeip_config/dashboard.json
similarity index 100%
rename from vsomeip_config/dashboard.json
rename to crates/vsomeip_config/dashboard.json