diff --git a/frontend/src/crdt/AwarenessManager.ts b/frontend/src/crdt/AwarenessManager.ts
new file mode 100644
index 0000000..6e8a7c0
--- /dev/null
+++ b/frontend/src/crdt/AwarenessManager.ts
@@ -0,0 +1,40 @@
+import { Awareness } from 'y-protocols/awareness';
+import * as Y from 'yjs';
+
+export class AwarenessManager {
+  awareness: Awareness;
+  
+  constructor(doc: Y.Doc) {
+    this.awareness = new Awareness(doc);
+  }
+
+  setLocalState(state: Record<string, any>) {
+    this.awareness.setLocalState(state);
+  }
+
+  getStates(): Map<number, Record<string, any>> {
+    return this.awareness.getStates();
+  }
+
+  on(event: 'change', callback: (updates: AwarenessUpdate) => void): void;
+  on(event: 'update', callback: (updates: AwarenessUpdate) => void): void;
+  on(event: string, callback: (updates: AwarenessUpdate) => void): void {
+    this.awareness.on(event as any, callback);
+  }
+
+  off(event: 'change', callback: (updates: AwarenessUpdate) => void): void;
+  off(event: 'update', callback: (updates: AwarenessUpdate) => void): void;
+  off(event: string, callback: (updates: AwarenessUpdate) => void): void {
+    this.awareness.off(event as any, callback);
+  }
+
+  destroy() {
+    this.awareness.destroy();
+  }
+}
+
+type AwarenessUpdate = {
+  added: number[];
+  updated: number[];
+  removed: number[];
+};
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