diff --git a/src/chat-client-standalone.ts b/src/chat-client-standalone.ts
index 33dca3f..a18503b 100644
--- a/src/chat-client-standalone.ts
+++ b/src/chat-client-standalone.ts
@@ -1,6 +1,6 @@
 import { $Present, $Says, asPresent, asSays, fromPresent, fromSays, Present, Says } from "./gen/chat-protocol.js";
 import { fromObserve, Observe } from "./gen/dataspace.js";
-import { Assertion, Handle, Ref, Turn } from "./actor.js";
+import { Assertion, Handle, LocalAction, Ref, Turn } from "./actor.js";
 import readline from 'readline';
 
 export default function (t: Turn, ds: Ref) {
@@ -13,21 +13,18 @@ export default function (t: Turn, ds: Ref) {
     }
     updateUsername(t, 'user' + process.pid);
 
-    const usermap = new Map<Handle, Present>();
+    const usermap = new Map<Handle, LocalAction>();
     t.assert(ds, fromObserve(Observe({
         label: $Present,
         observer: t.ref({
-            assert(t: Turn, e0: Assertion, h: Handle): void {
+            assert(_t: Turn, e0: Assertion, h: Handle): void {
                 const e = asPresent(e0);
                 console.log(`${e.username} arrived`);
-                usermap.set(h, e);
+                usermap.set(h, (_t: Turn) => console.log(`${e.username} departed`));
             },
             retract(t: Turn, h: Handle): void {
-                const e = usermap.get(h);
-                if (e) {
-                    usermap.delete(h);
-                    console.log(`${e.username} departed`);
-                }
+                usermap.get(h)?.(t);
+                usermap.delete(h);
             },
         }),
     })));
@@ -35,26 +32,22 @@ export default function (t: Turn, ds: Ref) {
     t.assert(ds, fromObserve(Observe({
         label: $Says,
         observer: t.ref({
-            message(t: Turn, u0: Assertion): void {
+            message(_t: Turn, u0: Assertion): void {
                 const u = asSays(u0);
                 console.log(`${u.who}: ${u.what}`);
             },
         }),
     })));
 
-    function sendUtterance(what: string) {
-        t.freshen(t => t.message(ds, fromSays(Says({ who: username, what }))));
-    }
-
     const rl = readline.createInterface({ input: process.stdin, output: process.stdout });
 
-    rl.on('line', (line: string) => {
-        if (line.startsWith('/nick ')) {
-            t.freshen(t => updateUsername(t, line.slice(5).trimLeft()));
+    rl.on('line', (line: string) => t.freshen(t => {
+        if (line.toLowerCase().startsWith('/nick ')) {
+            updateUsername(t, line.slice(5).trimLeft());
         } else {
-            sendUtterance(line);
+            t.message(ds, fromSays(Says({ who: username, what: line })));
         }
-    });
+    }));
 
     rl.on('close', () => t.freshen(t => t.quit()));
 }