chat, nicknames, user list.

webui/src/App.jsx

@@ -17,6 +17,8 @@ import RightPaneTabs from './components/RightPaneTabs.jsx';
 import ModeGateOverlay from './components/ModeGateOverlay.jsx';
 import SessionSnapshot from './components/SessionSnapshot.jsx';
 import HomeAssistantControls from './components/HomeAssistantControls.jsx';
+import UserListPanel from './components/UserListPanel.jsx';
+import ChatPanel from './components/ChatPanel.jsx';
 
 function useLayoutMode() {
   const [mode, setMode] = useState(() => {
@@ -53,6 +55,10 @@ function DesktopLayout({ layout }) {
     <div className="flex h-full gap-0.5 overflow-hidden">
       <div className="flex min-w-0 flex-[1.8] flex-col gap-0.5 overflow-y-auto pr-0.5">
         <DriverVideoPanel />
+        <div className="grid grid-cols-2 gap-0.5">
+          <UserListPanel />
+          <ChatPanel />
+        </div>
         <LogPanel />
       </div>
       <div className="flex min-w-0 flex-1 flex-col gap-0.5 overflow-y-auto">

webui/src/components/ChatPanel.jsx

@@ -0,0 +1,101 @@
+import { useMemo, useState } from 'react';
+import { useChat } from '../context/ChatContext.jsx';
+import { useSession } from '../context/SessionContext.jsx';
+
+function roleColors(role) {
+  switch (role) {
+    case 'admin':
+    case 'lockdown':
+    case 'lockdown-admin':
+      return 'text-amber-300';
+    case 'spectator':
+      return 'text-slate-400';
+    default:
+      return 'text-sky-300';
+  }
+}
+
+function formatTime(ts) {
+  const date = new Date(ts);
+  return `${date.getHours().toString().padStart(2, '0')}:${date.getMinutes().toString().padStart(2, '0')}`;
+}
+
+function displayName(message) {
+  return message.nickname || message.socketId?.slice(0, 6) || 'unknown';
+}
+
+export default function ChatPanel() {
+  const { session } = useSession();
+  const { messages, sendMessage, registerInputRef, onInputFocus, onInputBlur, blurChat } = useChat();
+  const [draft, setDraft] = useState('');
+  const [sending, setSending] = useState(false);
+  const canChat = session?.role !== 'spectator';
+
+  const sorted = useMemo(() => messages.slice(-200), [messages]);
+
+  async function handleSend(event) {
+    event.preventDefault();
+    if (!canChat) return;
+    const clean = draft.trim();
+    if (!clean) return;
+    setSending(true);
+    try {
+      await sendMessage(clean);
+      setDraft('');
+      blurChat();
+    } catch (err) {
+      alert(err.message);
+    } finally {
+      setSending(false);
+    }
+  }
+
+  return (
+    <section className="panel-section space-y-0.5 text-base">
+      {/* <div className="flex items-center justify-between text-sm text-slate-400">
+        <span>Chat</span>
+        <span className="text-xs text-slate-500">{sorted.length}</span>
+      </div> */}
+      <div className="surface h-48 overflow-y-auto space-y-0.5">
+        {sorted.length === 0 ? (
+          <p className="text-sm text-slate-500">No messages yet.</p>
+        ) : (
+          sorted.map((msg) => {
+            const isAdmin =
+              msg.role === 'admin' || msg.role === 'lockdown' || msg.role === 'lockdown-admin';
+            return (
+              <div
+                key={msg.id}
+                className={`surface-muted text-sm ${isAdmin ? 'border border-amber-400/30' : ''}`}
+              >
+                <div className="flex items-center gap-1 text-[0.75rem] text-slate-400">
+                  <span>{formatTime(msg.ts)}</span>
+                  <span className={`font-semibold ${roleColors(msg.role)}`}>{displayName(msg)}</span>
+                  {msg.roverId && (
+                    <span className="rounded bg-slate-800 px-1 text-[0.7rem]">rover {msg.roverId}</span>
+                  )}
+                </div>
+                <p className="text-slate-100 break-words">{msg.text}</p>
+              </div>
+            );
+          })
+        )}
+      </div>
+      <form className="flex gap-0.5" onSubmit={handleSend}>
+        <input
+          className="field-input flex-1"
+          value={draft}
+          onChange={(e) => setDraft(e.target.value)}
+          onFocus={onInputFocus}
+          onBlur={onInputBlur}
+          ref={(el) => registerInputRef(el)}
+          placeholder={canChat ? 'Type a message…' : 'Spectators cannot chat'}
+          disabled={!canChat}
+        />
+        <button type="submit" disabled={!canChat || sending} className="button-dark disabled:opacity-50">
+          {sending ? '...' : 'Send'}
+        </button>
+      </form>
+    </section>
+  );
+}

webui/src/components/KeymapSettings.jsx

@@ -21,6 +21,7 @@ const KEY_ACTIONS = [
   { id: 'cameraDown', label: 'Camera Down', group: 'Camera' },
   { id: 'driveMacro', label: 'Drive Macro', group: 'Macros' },
   { id: 'dockMacro', label: 'Dock Macro', group: 'Macros' },
+  { id: 'chatFocus', label: 'Toggle Chat', group: 'Chat' },
 ];
 
 function groupActions(actions) {

webui/src/components/TelemetryPanel.jsx

@@ -22,13 +22,13 @@ export default function TelemetryPanel() {
   const rawSnippet = frame?.raw ? frame.raw : null;
   const roster = session?.roster ?? [];
   const activeDriverId = roverId ? session?.activeDrivers?.[roverId] : null;
-  const driverLabel = !roverId
-    ? 'n/a'
-    : activeDriverId
-    ? activeDriverId === session?.socketId
-      ? 'You'
-      : activeDriverId.slice(0, 6)
-    : 'Available';
+  const driverLabel = useMemo(() => {
+    if (!roverId) return 'n/a';
+    if (!activeDriverId) return 'Available';
+    if (activeDriverId === session?.socketId) return 'You';
+    const user = (session?.users || []).find((entry) => entry.socketId === activeDriverId);
+    return user?.nickname || activeDriverId.slice(0, 6);
+  }, [activeDriverId, roverId, session?.socketId, session?.users]);
   const isAdmin = useMemo(
     () => session?.role === 'admin' || session?.role === 'lockdown' || session?.role === 'lockdown-admin',
     [session?.role],

webui/src/components/UserListPanel.jsx

@@ -0,0 +1,134 @@
+import { useEffect, useMemo, useRef, useState } from 'react';
+import { useSession } from '../context/SessionContext.jsx';
+import { useSettingsNamespace } from '../settings/index.js';
+
+function roleColors(role) {
+  switch (role) {
+    case 'admin':
+    case 'lockdown':
+    case 'lockdown-admin':
+      return 'text-amber-300';
+    case 'spectator':
+      return 'text-slate-400';
+    default:
+      return 'text-sky-300';
+  }
+}
+
+function formatLabel(user, selfId) {
+  if (!user) return '';
+  const base = user.nickname || user.socketId?.slice(0, 6) || 'unknown';
+  if (user.socketId && user.socketId === selfId) {
+    return `${base} (you)`;
+  }
+  return base;
+}
+
+export default function UserListPanel() {
+  const { session, setNickname } = useSession();
+  const { value, save } = useSettingsNamespace('profile', { nickname: '' });
+  const [nicknameInput, setNicknameInput] = useState(value.nickname || '');
+  const [saving, setSaving] = useState(false);
+  const hasSyncedRef = useRef(false);
+  const canSetNickname = session?.role !== 'spectator';
+  const users = session?.users ?? [];
+  const selfId = session?.socketId || null;
+
+  useEffect(() => {
+    setNicknameInput(value.nickname || '');
+  }, [value.nickname]);
+
+  useEffect(() => {
+    if (hasSyncedRef.current) return;
+    if (!canSetNickname) return;
+    if (!session?.socketId) return;
+    if (!nicknameInput) return;
+    hasSyncedRef.current = true;
+    setNickname(nicknameInput).catch(() => {
+      hasSyncedRef.current = false;
+    });
+  }, [canSetNickname, nicknameInput, session?.socketId, setNickname]);
+
+  const sorted = useMemo(
+    () =>
+      [...users].sort((a, b) => {
+        if (a.socketId === selfId) return -1;
+        if (b.socketId === selfId) return 1;
+        return (a.nickname || '').localeCompare(b.nickname || '');
+      }),
+    [selfId, users],
+  );
+
+  async function handleSave(event) {
+    event.preventDefault();
+    if (!canSetNickname) return;
+    const trimmed = (nicknameInput || '').trim().slice(0, 32);
+    if (!trimmed) return;
+    setSaving(true);
+    try {
+      await setNickname(trimmed);
+      save({ nickname: trimmed });
+    } catch (err) {
+      alert(err.message);
+    } finally {
+      setSaving(false);
+    }
+  }
+
+  return (
+    <section className="panel-section space-y-0.5 text-base">
+      <div className="space-y-0.5">
+        {/* <p className="text-sm text-slate-400">Nickname</p> */}
+        <form className="flex gap-0.5" onSubmit={handleSave}>
+          <input
+            className="field-input flex-1"
+            value={nicknameInput}
+            onChange={(e) => setNicknameInput(e.target.value)}
+            maxLength={32}
+            placeholder="Enter a nickname"
+            disabled={!canSetNickname}
+          />
+          <button type="submit" disabled={!canSetNickname || saving} className="button-dark disabled:opacity-50">
+            {saving ? 'Saving…' : 'Save'}
+          </button>
+        </form>
+        {!canSetNickname && <p className="text-xs text-slate-500">Spectators cannot set nicknames.</p>}
+      </div>
+
+      <div className="space-y-0.5">
+        <div className="flex items-center justify-between text-sm text-slate-400">
+          <span>Users</span>
+          <span className="text-xs text-slate-500">{sorted.length}</span>
+        </div>
+        <div className="surface h-48 overflow-y-auto space-y-0.5">
+          {sorted.length === 0 ? (
+            <p className="text-sm text-slate-500">Waiting for users…</p>
+          ) : (
+            sorted.map((user) => {
+              const isAdmin =
+                user.role === 'admin' || user.role === 'lockdown' || user.role === 'lockdown-admin';
+              return (
+                <div
+                  key={user.socketId}
+                  className="surface-muted flex items-center justify-between gap-0.5 text-sm"
+                >
+                  <div>
+                    <p className={`font-semibold ${roleColors(user.role)}`}>{formatLabel(user, selfId)}</p>
+                    <p className="text-[0.7rem] text-slate-400">
+                      {user.roverId ? `Driving ${user.roverId}` : 'No rover'}
+                    </p>
+                  </div>
+                  {isAdmin && (
+                    <span className="rounded bg-amber-500/30 px-1 text-[0.7rem] text-amber-200">
+                      Admin
+                    </span>
+                  )}
+                </div>
+              );
+            })
+          )}
+        </div>
+      </div>
+    </section>
+  );
+}

webui/src/components/VideoTile.jsx

@@ -195,11 +195,13 @@ function BatteryBar({ charge, config, status }) {
       <div className="flex items-center justify-between text-xs text-slate-400">
         <span>{status}</span>
       </div>
-      <div className="relative h-4 w-full bg-zinc-900">
-        <div className={`h-full transition-[width] ${barClass}`} style={{ width: `${percentDisplay}%` }} />
-        <span className="absolute inset-0 flex items-center justify-center text-xs font-semibold text-black/80">
-          Battery {percentText}
-        </span>
+      <div className="relative h-4 w-full bg-zinc-900 flex">
+        <div className={`h-full transition-[width] ${barClass}`} style={{ width: `${percentDisplay}%` }}>
+          <span className="inset-0 flex items-center justify-center text-xs font-semibold text-black/80">
+            Battery {percentText}
+          </span>
+        </div>
+
       </div>
     </div>
   );

webui/src/context/ChatContext.jsx

@@ -0,0 +1,90 @@
+/* eslint-disable react-refresh/only-export-components */
+
+import { createContext, useCallback, useContext, useEffect, useMemo, useRef, useState } from 'react';
+import { useSocket } from './SocketContext.jsx';
+import { useSession } from './SessionContext.jsx';
+
+const ChatContext = createContext({
+  messages: [],
+  sendMessage: async () => {},
+  focusChat: () => {},
+  blurChat: () => {},
+  registerInputRef: () => {},
+  onInputFocus: () => {},
+  onInputBlur: () => {},
+  isChatFocused: false,
+});
+
+export function ChatProvider({ children }) {
+  const socket = useSocket();
+  const { session } = useSession();
+  const [messages, setMessages] = useState([]);
+  const [isChatFocused, setIsChatFocused] = useState(false);
+  const inputRef = useRef(null);
+
+  useEffect(() => {
+    function handleMessage(payload = {}) {
+      setMessages((prev) => [...prev.slice(-99), payload]);
+    }
+    socket.on('chat:message', handleMessage);
+    return () => {
+      socket.off('chat:message', handleMessage);
+    };
+  }, [socket]);
+
+  const sendMessage = useCallback(
+    (text) =>
+      new Promise((resolve, reject) => {
+        socket.emit('chat:send', { text }, (resp = {}) => {
+          if (resp.error) {
+            reject(new Error(resp.error));
+          } else {
+            resolve(resp);
+          }
+        });
+      }),
+    [socket],
+  );
+
+  const registerInputRef = useCallback((el) => {
+    inputRef.current = el;
+  }, []);
+
+  const focusChat = useCallback(() => {
+    setIsChatFocused(true);
+    inputRef.current?.focus();
+  }, []);
+
+  const blurChat = useCallback(() => {
+    setIsChatFocused(false);
+    inputRef.current?.blur();
+  }, []);
+
+  const onInputFocus = useCallback(() => setIsChatFocused(true), []);
+  const onInputBlur = useCallback(() => setIsChatFocused(false), []);
+
+  const value = useMemo(
+    () => ({
+      messages,
+      sendMessage,
+      focusChat,
+      blurChat,
+      registerInputRef,
+      onInputFocus,
+      onInputBlur,
+      isChatFocused,
+      selfSocketId: session?.socketId || null,
+    }),
+    [blurChat, focusChat, isChatFocused, messages, onInputBlur, onInputFocus, registerInputRef, sendMessage, session?.socketId],
+  );
+
+  return <ChatContext.Provider value={value}>{children}</ChatContext.Provider>;
+}
+
+export function useChat() {
+  const ctx = useContext(ChatContext);
+  if (!ctx) {
+    throw new Error('useChat must be used inside ChatProvider');
+  }
+  return ctx;
+}

webui/src/context/SessionContext.jsx

@@ -14,6 +14,7 @@ const SessionContext = createContext({
   subscribeAll: async () => {},
   homeAssistantToggle: async () => {},
   homeAssistantSetState: async () => {},
+  setNickname: async () => {},
 });
 
 function useAckEmitter(socket) {
@@ -94,6 +95,7 @@ export function SessionProvider({ children }) {
       homeAssistantToggle: (entityId) => emitWithAck('homeAssistant:toggle', { entityId }),
       homeAssistantSetState: (entityId, state) =>
         emitWithAck('homeAssistant:setState', { entityId, state }),
+      setNickname: (nickname) => emitWithAck('nickname:set', { nickname }),
     }),
     [emitWithAck],
   );

webui/src/controls/ControlContext.jsx

@@ -35,9 +35,8 @@ export function ControlSystemProvider({ children }) {
   }, [pipeline.roverId]);
 
   useEffect(() => {
-    if (controlSettings?.keymap) {
-      dispatch({ type: 'control/set-keymap', payload: controlSettings.keymap });
-    }
+    const mergedKeymap = { ...DEFAULT_KEYMAP, ...(controlSettings?.keymap || {}) };
+    dispatch({ type: 'control/set-keymap', payload: mergedKeymap });
     if (controlSettings?.macros) {
       dispatch({ type: 'control/set-macros', payload: controlSettings.macros });
     }

webui/src/controls/constants.js

@@ -38,6 +38,7 @@ export const DEFAULT_KEYMAP = {
   cameraDown: ['j'],
   driveMacro: ['f'],
   dockMacro: ['g'],
+  chatFocus: ['enter'],
 };
 
 export const DEFAULT_MACROS = [

webui/src/controls/inputs/KeyboardInputManager.jsx

@@ -1,5 +1,6 @@
 import { useCallback, useEffect, useMemo, useRef } from 'react';
 import { useControlSystem } from '../ControlContext.jsx';
+import { useChat } from '../../context/ChatContext.jsx';
 import { normalizeKeymapEntries, tokensForEvent } from '../keymapUtils.js';
 
 const SOURCE = 'keyboard';
@@ -87,6 +88,7 @@ export default function KeyboardInputManager() {
       registerInputState,
     },
   } = useControlSystem();
+  const { focusChat, blurChat, isChatFocused } = useChat();
   const keymap = useMemo(() => normalizeKeymapEntries(state.keymap), [state.keymap]);
   const actionTokens = useMemo(() => {
     const tokens = new Set();
@@ -182,6 +184,17 @@ export default function KeyboardInputManager() {
       if (shouldIgnoreEvent(event)) return;
       const tokens = tokensForEvent(event);
       if (tokens.length === 0) return;
+      const tokenSet = new Set(tokens);
+      if (bindingActive(keymap.chatFocus, tokenSet)) {
+        event.preventDefault();
+        resetAll();
+        if (isChatFocused) {
+          blurChat();
+        } else {
+          focusChat();
+        }
+        return;
+      }
       if (tokens.some((token) => actionTokens.has(token))) {
         event.preventDefault();
       }
@@ -221,7 +234,21 @@ export default function KeyboardInputManager() {
       window.removeEventListener('keyup', handleKeyUp);
       window.removeEventListener('blur', handleBlur);
     };
-  }, [actionTokens, driveFromKeys, ensureServoLoop, keymap.dockMacro, keymap.driveMacro, resetAll, runMacro, setMode]);
+  }, [
+    actionTokens,
+    blurChat,
+    driveFromKeys,
+    ensureServoLoop,
+    focusChat,
+    isChatFocused,
+    keymap.chatFocus,
+    keymap.dockMacro,
+    keymap.driveMacro,
+    resetAll,
+    runMacro,
+    setMode,
+    stopAllMotion,
+  ]);
 
   const latestResetAllRef = useRef(resetAll);
   useEffect(() => {

webui/src/main.jsx

@@ -6,6 +6,7 @@ import App from './App.jsx'
 import { SocketProvider } from './context/SocketContext.jsx'
 import { SessionProvider } from './context/SessionContext.jsx'
 import { TelemetryProvider } from './context/TelemetryContext.jsx'
+import { ChatProvider } from './context/ChatContext.jsx'
 import SpectatorApp from './spectate/SpectatorApp.jsx'
 
 createRoot(document.getElementById('root')).render(
@@ -13,12 +14,14 @@ createRoot(document.getElementById('root')).render(
     <SocketProvider>
       <SessionProvider>
         <TelemetryProvider>
-          <BrowserRouter>
-            <Routes>
-              <Route path="/" element={<App />} />
-              <Route path="/spectate" element={<SpectatorApp />} />
-            </Routes>
-          </BrowserRouter>
+          <ChatProvider>
+            <BrowserRouter>
+              <Routes>
+                <Route path="/" element={<App />} />
+                <Route path="/spectate" element={<SpectatorApp />} />
+              </Routes>
+            </BrowserRouter>
+          </ChatProvider>
         </TelemetryProvider>
       </SessionProvider>
     </SocketProvider>