diff --git a/crates/lavina-core/src/clustering.rs b/crates/lavina-core/src/clustering.rs
index d264906..9fffcaf 100644
--- a/crates/lavina-core/src/clustering.rs
+++ b/crates/lavina-core/src/clustering.rs
@@ -6,6 +6,8 @@ use serde::{Deserialize, Serialize};
 use std::net::SocketAddr;
 use std::sync::Arc;
 
+mod broadcast;
+
 type Addresses = Vec<SocketAddr>;
 
 #[derive(Deserialize, Debug, Clone)]
diff --git a/crates/lavina-core/src/clustering/broadcast.rs b/crates/lavina-core/src/clustering/broadcast.rs
new file mode 100644
index 0000000..190698f
--- /dev/null
+++ b/crates/lavina-core/src/clustering/broadcast.rs
@@ -0,0 +1,5 @@
+/// Receives updates from other nodes and broadcasts them to local player actors.
+struct Broadcasting {
+
+}
+
diff --git a/docs/scalability.md b/docs/scalability.md
index b33f26e..c2a31a3 100644
--- a/docs/scalability.md
+++ b/docs/scalability.md
@@ -16,6 +16,13 @@ Dialogs and their history are located on the same node, as all players.
 The allocation is specified statically in the configuration file.
 
 ## Step 2 – players and dialogs distributed
+Different players could be located on different nodes. The traffic is still terminated on the same node.
+A client must connect to the node which hosts the player, otherwise the connection is terminated.
+
+Dialogs are located on the first player's node. This depends on how the first player is decided,
+which is implemented by sorting the players lexicographically.
+
+The allocation is still specified statically in the configuration file.
 
 ## Step 3 – dynamic allocation and consensus