diff --git a/kubi-udp/src/server.rs b/kubi-udp/src/server.rs
index 3aead64..87c7bc8 100644
--- a/kubi-udp/src/server.rs
+++ b/kubi-udp/src/server.rs
@@ -9,20 +9,48 @@ pub struct ConnectedClient {
   timeout: Instant,
 }
 
+#[derive(Clone, Copy, Debug)]
+pub struct ServerConfig {
+  pub max_clients: usize,
+}
+impl Default for ServerConfig {
+  fn default() -> Self {
+    Self {
+      max_clients: MAX_CLIENTS,
+    }
+  }
+}
+
 pub struct Server {
   socket: UdpSocket,
-  clients: HashMap<ClientId, ConnectedClient, BuildNoHashHasher<ClientId>>
+  clients: HashMap<ClientId, ConnectedClient, BuildNoHashHasher<u8>>,
+  config: ServerConfig,
 }
 impl Server {
-  pub fn bind(addr: SocketAddr) -> anyhow::Result<Self> {
+  pub fn bind(addr: SocketAddr, config: ServerConfig) -> anyhow::Result<Self> {
+    assert!(config.max_clients <= MAX_CLIENTS);
     let socket = UdpSocket::bind(addr)?;
     socket.set_nonblocking(true)?;
     //socket.set_broadcast(true)?;
     Ok(Self { 
+      config,
       socket,
       clients: HashMap::with_capacity_and_hasher(MAX_CLIENTS, BuildNoHashHasher::default())
     })
   }
+  /// Returns None if there are no free spots left
+  fn connect_client(&mut self) -> Option<ClientId> {
+    let id = (1..=self.config.max_clients)
+      .map(|x| ClientId::new(x as _).unwrap())
+      .find(|i| self.clients.contains_key(i))?;
+    self.clients.insert(id, ConnectedClient {
+      id,
+      addr: "0.0.0.0:0".parse().unwrap(),
+      timeout: Instant::now(),
+    });
+    todo!();
+    Some(id)
+  }
   pub fn update(&mut self) {
     let mut buf = Vec::new();
     if self.socket.recv(&mut buf).is_ok() {