diff --git a/Cargo.toml b/Cargo.toml
index 3ef687f..74131e2 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -5,6 +5,11 @@ authors = ["ennucore <ennucore@gmail.com>"]
 edition = "2018"
 
 
+[features]
+default = []
+std = []
+
+
 [dependencies]
 rand_os = "0.2.2"
 x25519-dalek = "0.6.0"
diff --git a/src/ironforce.rs b/src/ironforce.rs
index 4fb83ce..0868d9d 100644
--- a/src/ironforce.rs
+++ b/src/ironforce.rs
@@ -15,19 +15,40 @@ impl IronForce {
         IronForce { transport: Transport::new(), key_pack: KeyPack::gen() }
     }
 
-    fn new_message(&self, msg_type: MsgType, body: Vec<u8>) -> Message {
-        Message::new(msg_type, body, &self.key_pack)
+    fn is_valid_message(&self, msg: &Message) -> bool {
+        // todo: some kind of PoW
+        msg.verify()
     }
 
-    fn service_msg(&self, body: Vec<u8>) {
+    fn new_message(&self, msg_type: MsgType, body: &Vec<u8>) -> Message {
+        Message::new(msg_type, body.clone(), &self.key_pack)
+    }
+
+    fn service_msg(&self, body: &Vec<u8>) {
         self.transport.send(&self.new_message(MsgType::Service, body))
     }
 
-    pub fn multicast(&self, body: Vec<u8>) {
+    pub fn multicast(&self, body: &Vec<u8>) {
         self.transport.send(&self.new_message(MsgType::MultiCast, body))
     }
 
-    pub fn send_message_to(&self, to: PublicKey, body: Vec<u8>) {
+    pub fn send_message_to(&self, to: PublicKey, body: &Vec<u8>) {
         self.transport.send(&self.new_message(MsgType::ToTarget(to), body))
     }
+
+    fn handle_message(&self, msg: &Message) {
+        if self.is_valid_message(msg) {
+            match &msg.msg_type {
+                MsgType::Service => {
+                    self.service_msg(&msg.body)
+                },
+                MsgType::MultiCast => {
+
+                },
+                MsgType::ToTarget(Target) => {
+
+                }
+            }
+        }
+    }
 }
diff --git a/src/transport.rs b/src/transport.rs
index 866400e..1590e63 100644
--- a/src/transport.rs
+++ b/src/transport.rs
@@ -4,15 +4,15 @@ use crate::way::Way;
 use alloc::vec::Vec;
 use alloc::boxed::Box;
 
-#[cfg(no_std)]
+#[cfg(not(feature = "std"))]
 pub struct Transport {}
 
-#[cfg(not(no_std))]
+#[cfg(feature = "std")]
 pub struct Transport {
     ways: Vec<Box<dyn Way>>
 }
 
-#[cfg(no_std)]
+#[cfg(not(feature = "std"))]
 impl Transport {
     pub fn new() -> Self {
         Self {}
@@ -29,14 +29,16 @@ impl Transport {
     }
 }
 
-#[cfg(not(no_std))]
+#[cfg(feature = "std")]
 impl Transport {
     pub fn new() -> Self {
         Self {ways: Vec::<Box<dyn Way>>::new()}
     }
 
     pub fn send(&self, msg: &Message) {
-
+        for way in &self.ways {
+            way.send(&msg);
+        }
     }
 
     pub fn receive(&self) -> Message {