diff --git a/src/lib/operation/controller.rs b/src/lib/operation/controller.rs
new file mode 100644
index 0000000..be36712
--- /dev/null
+++ b/src/lib/operation/controller.rs
@@ -0,0 +1,98 @@
+use std::{sync::Mutex, collections::VecDeque, ops::Range};
+
+use operational_transform::{OperationSeq, OTError};
+use tokio::sync::watch;
+use tracing::warn;
+
+use super::{OperationFactory, OperationProcessor, op_effective_range};
+
+
+pub struct OperationController {
+	text: Mutex<String>,
+	queue: Mutex<VecDeque<OperationSeq>>,
+	last: Mutex<watch::Receiver<OperationSeq>>,
+	notifier: watch::Sender<OperationSeq>,
+	changed: Mutex<watch::Receiver<Range<u64>>>,
+	changed_notifier: watch::Sender<Range<u64>>,
+}
+
+impl OperationController {
+	pub fn new(content: String) -> Self {
+		let (tx, rx) = watch::channel(OperationSeq::default());
+		let (done, wait) = watch::channel(0..0);
+		OperationController {
+			text: Mutex::new(content),
+			queue: Mutex::new(VecDeque::new()),
+			last: Mutex::new(rx),
+			notifier: tx,
+			changed: Mutex::new(wait),
+			changed_notifier: done,
+		}
+	}
+
+	pub async fn wait(&self) -> Range<u64> {
+		let mut blocker = self.changed.lock().unwrap().clone();
+		// TODO less jank way
+		ignore_and_log(blocker.changed().await, "waiting for changed content #1");
+		ignore_and_log(blocker.changed().await, "waiting for changed content #2");
+		let span = blocker.borrow().clone();
+		span
+	}
+
+	pub async fn poll(&self) -> Option<OperationSeq> {
+		let len = self.queue.lock().unwrap().len();
+		if len <= 0 {
+			let mut recv = self.last.lock().unwrap().clone();
+			// TODO less jank way
+			ignore_and_log(recv.changed().await, "wairing for op changes #1"); // acknowledge current state
+			ignore_and_log(recv.changed().await, "wairing for op changes #2"); // wait for a change in state
+		}
+		Some(self.queue.lock().unwrap().get(0)?.clone())
+	}
+
+	pub async fn ack(&self) -> Option<OperationSeq> {
+		self.queue.lock().unwrap().pop_front()
+	}
+}
+
+impl OperationFactory for OperationController {
+	fn content(&self) -> String {
+		self.text.lock().unwrap().clone()
+	}
+}
+
+/// TODO properly handle errors rather than sinking them all in here!
+fn ignore_and_log<T, E : std::fmt::Display>(x: Result<T, E>, msg: &str) {
+	match x {
+		Ok(_) => {},
+		Err(e) => {
+			warn!("ignored error {}: {}", msg, e);
+		}
+	}
+}
+
+#[tonic::async_trait]
+impl OperationProcessor for OperationController {
+	async fn apply(&self, op: OperationSeq) -> Result<Range<u64>, OTError> {
+		let txt = self.content();
+		let res = op.apply(&txt)?;
+		*self.text.lock().unwrap() = res.clone();
+		self.queue.lock().unwrap().push_back(op.clone());
+		ignore_and_log(self.notifier.send(op.clone()), "notifying of applied change");
+		Ok(op_effective_range(&op))
+	}
+
+
+	async fn process(&self, mut op: OperationSeq) -> Result<Range<u64>, OTError> {
+		let mut queue = self.queue.lock().unwrap();
+		for el in queue.iter_mut() {
+			(op, *el) = op.transform(el)?;
+		}
+		let txt = self.content();
+		let res = op.apply(&txt)?;
+		let span = op_effective_range(&op);
+		*self.text.lock().unwrap() = res.clone();
+		ignore_and_log(self.changed_notifier.send(span.clone()), "notifying of changed content");
+		Ok(span)
+	}
+}
diff --git a/src/lib/operation/mod.rs b/src/lib/operation/mod.rs
index 39f22da..6ed85bc 100644
--- a/src/lib/operation/mod.rs
+++ b/src/lib/operation/mod.rs
@@ -1,10 +1,12 @@
 pub mod factory;
 pub mod processor;
+pub mod controller;
 
 use std::ops::Range;
 
 use operational_transform::{Operation, OperationSeq};
-pub use processor::{OperationController, OperationProcessor};
+pub use processor::OperationProcessor;
+pub use controller::OperationController;
 pub use factory::OperationFactory;
 
 pub const fn leading_noop(seq: &[Operation]) -> u64 { count_noop(seq.first()) }
diff --git a/src/lib/operation/processor.rs b/src/lib/operation/processor.rs
index 2832dfe..a37dfa2 100644
--- a/src/lib/operation/processor.rs
+++ b/src/lib/operation/processor.rs
@@ -1,110 +1,11 @@
-use std::{sync::Mutex, collections::VecDeque, ops::Range};
+use std::ops::Range;
 
 use operational_transform::{OperationSeq, OTError};
-use tokio::sync::watch;
-use tracing::warn;
 
 use crate::operation::factory::OperationFactory;
 
-use super::op_effective_range;
-
-
 #[tonic::async_trait]
 pub trait OperationProcessor : OperationFactory {
 	async fn apply(&self, op: OperationSeq) -> Result<Range<u64>, OTError>;
 	async fn process(&self, op: OperationSeq) -> Result<Range<u64>, OTError>;
-
-	async fn poll(&self) -> Option<OperationSeq>;
-	async fn ack(&self)  -> Option<OperationSeq>;
-	async fn wait(&self) -> Range<u64>;
-}
-
-
-pub struct OperationController {
-	text: Mutex<String>,
-	queue: Mutex<VecDeque<OperationSeq>>,
-	last: Mutex<watch::Receiver<OperationSeq>>,
-	notifier: watch::Sender<OperationSeq>,
-	changed: Mutex<watch::Receiver<Range<u64>>>,
-	changed_notifier: watch::Sender<Range<u64>>,
-}
-
-impl OperationController {
-	pub fn new(content: String) -> Self {
-		let (tx, rx) = watch::channel(OperationSeq::default());
-		let (done, wait) = watch::channel(0..0);
-		OperationController {
-			text: Mutex::new(content),
-			queue: Mutex::new(VecDeque::new()),
-			last: Mutex::new(rx),
-			notifier: tx,
-			changed: Mutex::new(wait),
-			changed_notifier: done,
-		}
-	}
-}
-
-impl OperationFactory for OperationController {
-	fn content(&self) -> String {
-		self.text.lock().unwrap().clone()
-	}
-}
-
-/// TODO properly handle errors rather than sinking them all in here!
-fn ignore_and_log<T, E : std::fmt::Display>(x: Result<T, E>, msg: &str) {
-	match x {
-		Ok(_) => {},
-		Err(e) => {
-			warn!("ignored error {}: {}", msg, e);
-		}
-	}
-}
-
-#[tonic::async_trait]
-impl OperationProcessor for OperationController {
-	async fn apply(&self, op: OperationSeq) -> Result<Range<u64>, OTError> {
-		let txt = self.content();
-		let res = op.apply(&txt)?;
-		*self.text.lock().unwrap() = res.clone();
-		self.queue.lock().unwrap().push_back(op.clone());
-		ignore_and_log(self.notifier.send(op.clone()), "notifying of applied change");
-		Ok(op_effective_range(&op))
-	}
-
-	async fn wait(&self) -> Range<u64> {
-		let mut blocker = self.changed.lock().unwrap().clone();
-		// TODO less jank way
-		ignore_and_log(blocker.changed().await, "waiting for changed content #1");
-		ignore_and_log(blocker.changed().await, "waiting for changed content #2");
-		let span = blocker.borrow().clone();
-		span
-	}
-
-	async fn process(&self, mut op: OperationSeq) -> Result<Range<u64>, OTError> {
-		let mut queue = self.queue.lock().unwrap();
-		for el in queue.iter_mut() {
-			(op, *el) = op.transform(el)?;
-		}
-		let txt = self.content();
-		let res = op.apply(&txt)?;
-		let span = op_effective_range(&op);
-		*self.text.lock().unwrap() = res.clone();
-		ignore_and_log(self.changed_notifier.send(span.clone()), "notifying of changed content");
-		Ok(span)
-	}
-
-	async fn poll(&self) -> Option<OperationSeq> {
-		let len = self.queue.lock().unwrap().len();
-		if len <= 0 {
-			let mut recv = self.last.lock().unwrap().clone();
-			// TODO less jank way
-			ignore_and_log(recv.changed().await, "wairing for op changes #1"); // acknowledge current state
-			ignore_and_log(recv.changed().await, "wairing for op changes #2"); // wait for a change in state
-		}
-		Some(self.queue.lock().unwrap().get(0)?.clone())
-	}
-
-	async fn ack(&self) -> Option<OperationSeq> {
-		self.queue.lock().unwrap().pop_front()
-	}
 }