diff --git a/README.md b/README.md
index 63094ae..b40173a 100644
--- a/README.md
+++ b/README.md
@@ -20,6 +20,7 @@
 - [x] rfc 7590: tls
 - [x] xep-0368: srv records for xmpp over tls
 - [ ] server side downgrade protection for sasl
+- [x] xep-0199: xmpp ping
 - [ ] xep-0030: service discovery
 - [ ] xep-0115: entity capabilities
 - [ ] xep-0163: pep
diff --git a/jabber/src/client.rs b/jabber/src/client.rs
index f5d5dc7..2e59d98 100644
--- a/jabber/src/client.rs
+++ b/jabber/src/client.rs
@@ -26,6 +26,7 @@ use crate::{
 pub struct JabberClient {
     connection: ConnectionState,
     jid: JID,
+    // TODO: have reconnection be handled by another part, so creds don't need to be stored in object
     password: Arc<SASLConfig>,
     server: String,
 }
@@ -49,6 +50,10 @@ impl JabberClient {
         })
     }
 
+    pub fn jid(&self) -> JID {
+        self.jid.clone()
+    }
+
     pub async fn connect(&mut self) -> Result<()> {
         match &self.connection {
             ConnectionState::Disconnected => {
diff --git a/jabber/src/jabber_stream/bound_stream.rs b/jabber/src/jabber_stream/bound_stream.rs
index c0d67b0..627158a 100644
--- a/jabber/src/jabber_stream/bound_stream.rs
+++ b/jabber/src/jabber_stream/bound_stream.rs
@@ -63,6 +63,7 @@ where
         if let Some(_write_handle) = this.write_handle {
             panic!("start_send called without poll_ready")
         } else {
+            // TODO: switch to buffer of one rather than thread spawning and joining
             *this.write_handle = Some(tokio::spawn(write(this.writer.clone(), item)));
             Ok(())
         }
diff --git a/luz/Cargo.toml b/luz/Cargo.toml
index 11d4197..646d8e8 100644
--- a/luz/Cargo.toml
+++ b/luz/Cargo.toml
@@ -4,3 +4,9 @@ version = "0.1.0"
 edition = "2021"
 
 [dependencies]
+futures = "0.3.31"
+jabber = { version = "0.1.0", path = "../jabber" }
+stanza = { version = "0.1.0", path = "../stanza" }
+tokio = "1.42.0"
+tokio-stream = "0.1.17"
+tokio-util = "0.7.13"
diff --git a/luz/src/lib.rs b/luz/src/lib.rs
new file mode 100644
index 0000000..1a750a3
--- /dev/null
+++ b/luz/src/lib.rs
@@ -0,0 +1,171 @@
+use std::{
+    collections::{HashMap, HashSet, VecDeque},
+    pin::pin,
+    task::{ready, Poll},
+    thread::JoinHandle,
+};
+
+use futures::{
+    stream::{SplitSink, SplitStream},
+    Sink, SinkExt, Stream, StreamExt,
+};
+use jabber::{client::JabberClient, JID};
+use stanza::{
+    client::{
+        iq::{Iq, IqType, Query},
+        Stanza,
+    },
+    roster,
+};
+use tokio::sync::mpsc;
+use tokio_stream::wrappers::ReceiverStream;
+use tokio_util::sync::{PollSendError, PollSender};
+
+pub struct Client {
+    client: JabberClient,
+    pending_iqs: HashMap<String, mpsc::Sender<Iq>>,
+    // database connection (sqlite)
+    receiver: ReceiverStream<UpdateMessage>,
+    sender: PollSender<CommandMessage>,
+}
+
+impl Client {
+    pub async fn new(jid: String, password: &str) -> Result<Self, Error> {
+        let (read_sender, read_receiver) = mpsc::channel::<UpdateMessage>(20);
+        let (write_sender, write_receiver) = mpsc::channel::<CommandMessage>(20);
+        let mut jabber_client = JabberClient::new(jid, password)?;
+        jabber_client.connect().await?;
+        let (write, read) = jabber_client.split();
+        let client = Self {
+            client: jabber_client,
+            receiver: ReceiverStream::new(read_receiver),
+            sender: PollSender::new(write_sender),
+            pending_iqs: HashMap::new(),
+        };
+        tokio::spawn(client.process_read(read, read_sender));
+        tokio::spawn(client.process_write(write, write_receiver));
+        Ok(client)
+    }
+
+    pub async fn process_read(
+        &self,
+        mut stream: SplitStream<JabberClient>,
+        sender: mpsc::Sender<UpdateMessage>,
+    ) {
+        for stanza in stream.next().await {
+            tokio::spawn(self.process_stanza(stanza, sender.clone()));
+        }
+    }
+
+    pub async fn process_write(
+        &self,
+        mut sink: SplitSink<JabberClient, Stanza>,
+        receiver: mpsc::Receiver<CommandMessage>,
+    ) {
+        for message in receiver.recv_many(, )
+    }
+}
+
+pub enum Error {
+    PollSend(PollSendError<CommandMessage>),
+    Jabber(jabber::Error),
+}
+
+impl From<jabber::Error> for Error {
+    fn from(e: jabber::Error) -> Self {
+        Self::Jabber(e)
+    }
+}
+
+impl Stream for Client {
+    type Item = UpdateMessage;
+
+    fn poll_next(
+        self: std::pin::Pin<&mut Self>,
+        cx: &mut std::task::Context<'_>,
+    ) -> std::task::Poll<Option<Self::Item>> {
+        pin!(self).receiver.poll_next_unpin(cx)
+    }
+}
+
+impl Sink<CommandMessage> for Client {
+    type Error = Error;
+
+    fn poll_ready(
+        self: std::pin::Pin<&mut Self>,
+        cx: &mut std::task::Context<'_>,
+    ) -> Poll<Result<(), Self::Error>> {
+        Poll::Ready(ready!(pin!(self).sender.poll_ready_unpin(cx)))
+    }
+
+    fn start_send(self: std::pin::Pin<&mut Self>, item: CommandMessage) -> Result<(), Self::Error> {
+        todo!()
+    }
+
+    fn poll_flush(
+        self: std::pin::Pin<&mut Self>,
+        cx: &mut std::task::Context<'_>,
+    ) -> Poll<Result<(), Self::Error>> {
+        todo!()
+    }
+
+    fn poll_close(
+        self: std::pin::Pin<&mut Self>,
+        cx: &mut std::task::Context<'_>,
+    ) -> Poll<Result<(), Self::Error>> {
+        todo!()
+    }
+}
+
+impl From<PollSendError<CommandMessage>> for Error {
+    fn from(e: PollSendError<CommandMessage>) -> Self {
+        Self::PollSend(e)
+    }
+}
+
+pub enum CommandMessage {
+    Connect,
+    GetRoster,
+    SendMessage(JID, String),
+}
+
+pub enum UpdateMessage {
+    Roster(Vec<roster::Item>),
+}
+
+impl Client {
+    pub async fn process_stanza(
+        &mut self,
+        stanza: Result<Stanza, jabber::Error>,
+        sender: mpsc::Sender<UpdateMessage>,
+    ) {
+        match stanza {
+            Ok(stanza) => todo!(),
+            Err(e) => self.process_error(e),
+        }
+    }
+
+    pub async fn iq(
+        &mut self,
+        to: Option<JID>,
+        r#type: IqType,
+        query: Option<Query>,
+    ) -> Result<IqResponse, Error> {
+        self.client
+            .send(Stanza::Iq(Iq {
+                from: Some(self.client.jid()),
+                // TODO: generate id
+                id: "test".to_string(),
+                to,
+                r#type,
+                // TODO: lang
+                lang: None,
+                query,
+                errors: Vec::new(),
+            }))
+            .await?;
+        Ok(todo!())
+    }
+
+    pub async fn iq_process(&mut self, iq: Iq) {}
+}
diff --git a/stanza/src/client/iq.rs b/stanza/src/client/iq.rs
index 6ee80ea..2e87636 100644
--- a/stanza/src/client/iq.rs
+++ b/stanza/src/client/iq.rs
@@ -9,6 +9,7 @@ use peanuts::{
 use crate::{
     bind::{self, Bind},
     client::error::Error,
+    roster,
     xep_0199::{self, Ping},
 };
 
@@ -31,6 +32,7 @@ pub struct Iq {
 pub enum Query {
     Bind(Bind),
     Ping(Ping),
+    Roster(roster::Query),
     Unsupported,
 }
 
@@ -39,6 +41,9 @@ impl FromElement for Query {
         match element.identify() {
             (Some(bind::XMLNS), "bind") => Ok(Query::Bind(Bind::from_element(element)?)),
             (Some(xep_0199::XMLNS), "ping") => Ok(Query::Ping(Ping::from_element(element)?)),
+            (Some(roster::XMLNS), "query") => {
+                Ok(Query::Roster(roster::Query::from_element(element)?))
+            }
             _ => Ok(Query::Unsupported),
         }
     }
@@ -49,6 +54,7 @@ impl IntoElement for Query {
         match self {
             Query::Bind(bind) => bind.builder(),
             Query::Ping(ping) => ping.builder(),
+            Query::Roster(query) => query.builder(),
             // TODO: consider what to do if attempt to serialize unsupported
             Query::Unsupported => todo!(),
         }
diff --git a/stanza/src/roster.rs b/stanza/src/roster.rs
index b49fcc3..9209fad 100644
--- a/stanza/src/roster.rs
+++ b/stanza/src/roster.rs
@@ -8,6 +8,7 @@ use peanuts::{
 
 pub const XMLNS: &str = "jabber:iq:roster";
 
+#[derive(Debug, Clone)]
 pub struct Query {
     ver: Option<String>,
     items: Vec<Item>,
@@ -33,7 +34,7 @@ impl IntoElement for Query {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Item {
     approved: Option<bool>,
     ask: bool,
@@ -95,7 +96,7 @@ impl IntoElement for Item {
     }
 }
 
-#[derive(Default, Clone, Copy)]
+#[derive(Default, Clone, Copy, Debug)]
 pub enum Subscription {
     Both,
     From,
@@ -132,7 +133,7 @@ impl ToString for Subscription {
     }
 }
 
-#[derive(Clone)]
+#[derive(Clone, Debug)]
 pub struct Group(Option<String>);
 
 impl FromElement for Group {