diff --git a/app/components/MobileNav.tsx b/app/components/MobileNav.tsx
index 974c40ab9..6ab7e2884 100644
--- a/app/components/MobileNav.tsx
+++ b/app/components/MobileNav.tsx
@@ -16,6 +16,7 @@ import { Dialog, Modal, ModalOverlay } from "react-aria-components";
 import { useTranslation } from "react-i18next";
 import { Link } from "react-router";
 import { useUser } from "~/features/auth/core/user";
+import { useChatContext } from "~/features/chat/useChatContext";
 import { FriendMenu } from "~/features/friends/components/FriendMenu";
 import { SENDOUQ_ACTIVITY_LABEL } from "~/features/friends/friends-constants";
 import type { RootLoaderData } from "~/root";
@@ -30,7 +31,6 @@ import { Avatar } from "./Avatar";
 import { EventsList } from "./EventsList";
 import { SendouButton } from "./elements/Button";
 import { Image } from "./Image";
-import { MOCK_TOTAL_UNREAD } from "./layout/ChatSidebar";
 import { LogInButtonContainer } from "./layout/LogInButtonContainer";
 import {
 	NotificationContent,
@@ -106,6 +106,7 @@ function MobileTabBar({
 	hasFriendInSendouQ: boolean;
 }) {
 	const { t } = useTranslation(["front", "common"]);
+	const chatContext = useChatContext();
 
 	return (
 		<nav className={styles.tabBar}>
@@ -135,8 +136,9 @@ function MobileTabBar({
 						icon={<MessageSquare />}
 						label={t("front:mobileNav.chat")}
 						isActive={false}
+						// onPress={() => chatContext?.setSidebarOpen(true)}
 						onPress={() => {}}
-						unreadCount={MOCK_TOTAL_UNREAD}
+						unreadCount={chatContext?.totalUnreadCount}
 					/>
 					<MobileTab
 						icon={<User />}
diff --git a/app/components/layout/ChatSidebar.module.css b/app/components/layout/ChatSidebar.module.css
index 4d05cffca..654690937 100644
--- a/app/components/layout/ChatSidebar.module.css
+++ b/app/components/layout/ChatSidebar.module.css
@@ -168,6 +168,13 @@
 	white-space: nowrap;
 }
 
+.emptyState {
+	padding: var(--s-4);
+	text-align: center;
+	color: var(--color-text-high);
+	font-size: var(--font-xs);
+}
+
 .chatContainer {
 	flex: 1;
 	min-height: 0;
diff --git a/app/components/layout/ChatSidebar.tsx b/app/components/layout/ChatSidebar.tsx
index f21c5372f..3becfd617 100644
--- a/app/components/layout/ChatSidebar.tsx
+++ b/app/components/layout/ChatSidebar.tsx
@@ -1,133 +1,38 @@
 import { ArrowLeft, MessageSquare, X } from "lucide-react";
-import * as React from "react";
 import { Button } from "react-aria-components";
-import type { ChatMessage, ChatUser } from "~/features/chat/chat-types";
+import { useTranslation } from "react-i18next";
 import { Chat } from "~/features/chat/components/Chat";
-import { navIconUrl } from "~/utils/urls";
+import { useChatContext } from "~/features/chat/useChatContext";
+import { useTimeFormat } from "~/hooks/useTimeFormat";
 import styles from "./ChatSidebar.module.css";
 
-const IMG_ROOT = "https://sendou.nyc3.cdn.digitaloceanspaces.com";
-const SENDOUQ_ICON = `${navIconUrl("sendouq")}.png`;
-
-interface MockRoom {
-	name: string;
-	lastMessage: string;
-	timestamp: string;
-	code: string;
-	imageUrl: string;
-	unreadCount?: number;
-}
-
-const MOCK_ROOMS: MockRoom[] = [
-	{
-		name: "SQ Match vs Team Alpha",
-		lastMessage: "ggs, well played!",
-		timestamp: "2 min ago",
-		code: "sq-alpha",
-		imageUrl: SENDOUQ_ICON,
-		unreadCount: 3,
-	},
-	{
-		name: "Low Ink March 2026",
-		lastMessage: "Ready to start?",
-		timestamp: "15 min ago",
-		code: "tourney-low-ink",
-		imageUrl: `${IMG_ROOT}/tournament-logo-zWk5C1kvQtEWrd7d2c_KS-1735836299376.webp`,
-	},
-	{
-		name: "SQ Match vs Gamma Squad",
-		lastMessage: "Let's run it back",
-		timestamp: "1 hr ago",
-		code: "sq-gamma",
-		imageUrl: SENDOUQ_ICON,
-	},
-	{
-		name: "Lunar Eclipse 56",
-		lastMessage: "See you tomorrow",
-		timestamp: "3 hrs ago",
-		code: "tourney-lunar",
-		imageUrl: `${IMG_ROOT}/tournament-logo-0oizUoMYLKQkc_EdyDkOT-1767636658472.webp`,
-		unreadCount: 1,
-	},
-	{
-		name: "Shark Tank: Shallow Waters #35",
-		lastMessage: "Who's subbing?",
-		timestamp: "5 hrs ago",
-		code: "tourney-shark",
-		imageUrl: `${IMG_ROOT}/tournament-logo-PyRNcRLpLMXBpO8j8Ho5W-1772403193067.webp`,
-	},
-];
-
-export const MOCK_TOTAL_UNREAD = MOCK_ROOMS.reduce(
-	(sum, room) => sum + (room.unreadCount ?? 0),
-	0,
-);
-
-const MOCK_USERS: Record<number, ChatUser> = {
-	1: {
-		username: "Sendou",
-		discordId: "79237403620945920",
-		discordAvatar: null,
-		pronouns: null,
-		chatNameHue: "268",
-	},
-	2: {
-		username: "N-ZAP",
-		discordId: "455039198672453645",
-		discordAvatar: null,
-		pronouns: null,
-		chatNameHue: "120",
-	},
-};
-
-function mockMessagesForRoom(roomCode: string): ChatMessage[] {
-	return [
-		{
-			id: `${roomCode}-1`,
-			userId: 2,
-			contents: "Hey, ready for the match?",
-			timestamp: Date.now() - 120000,
-			room: roomCode,
-		},
-		{
-			id: `${roomCode}-2`,
-			userId: 1,
-			contents: "Yeah let's go!",
-			timestamp: Date.now() - 60000,
-			room: roomCode,
-		},
-		{
-			id: `${roomCode}-3`,
-			userId: 2,
-			contents: "glhf",
-			timestamp: Date.now(),
-			room: roomCode,
-		},
-	];
-}
-
+// xxx: also make it so that if only one room then we go directly to the chat view instead of showing the room list
 export function ChatSidebar({ onClose }: { onClose?: () => void }) {
-	const [activeRoom, setActiveRoom] = React.useState<MockRoom | null>(null);
+	const chatContext = useChatContext();
 
-	if (activeRoom) {
-		return <ChatView room={activeRoom} onBack={() => setActiveRoom(null)} />;
+	if (!chatContext) return null;
+
+	if (chatContext.activeRoom) {
+		return <ChatView onClose={onClose} />;
 	}
 
-	return <RoomList onSelectRoom={setActiveRoom} onClose={onClose} />;
+	return <RoomList onClose={onClose} />;
 }
 
-function RoomList({
-	onSelectRoom,
-	onClose,
-}: {
-	onSelectRoom: (room: MockRoom) => void;
-	onClose?: () => void;
-}) {
+function RoomList({ onClose }: { onClose?: () => void }) {
+	const { t } = useTranslation(["common"]);
+	const chatContext = useChatContext()!;
+	const { formatDateTime } = useTimeFormat();
+
+	const nonExpiredRooms = chatContext.rooms.filter(
+		(room) => room.expiresAt > Date.now(),
+	);
+
 	return (
 		<div className={styles.sidebar}>
 			<div className={styles.sidebarHeader}>
 				<MessageSquare size={18} />
-				<h2>Chat</h2>
+				<h2>{t("common:chat.sidebar.title")}</h2>
 				{onClose ? (
 					<Button className={styles.closeButton} onPress={onClose}>
 						<X size={18} />
@@ -135,56 +40,94 @@ function RoomList({
 				) : null}
 			</div>
 			<div className={styles.roomList}>
-				{MOCK_ROOMS.map((room) => (
-					<Button
-						key={room.code}
-						className={styles.roomItem}
-						onPress={() => onSelectRoom(room)}
-					>
-						<img src={room.imageUrl} alt="" className={styles.roomImage} />
-						<div className={styles.roomInfo}>
-							<span className={styles.roomName}>{room.name}</span>
-							<span className={styles.roomLastMessage}>{room.lastMessage}</span>
-						</div>
-						{room.unreadCount ? (
-							<span className={styles.unreadBadge}>{room.unreadCount}</span>
-						) : (
-							<span className={styles.roomTimestamp}>{room.timestamp}</span>
-						)}
-					</Button>
-				))}
+				{nonExpiredRooms.length === 0 ? (
+					<div className={styles.emptyState}>
+						{t("common:chat.sidebar.noActiveChats")}
+					</div>
+				) : (
+					nonExpiredRooms.map((room) => {
+						const unread = chatContext.unreadCounts[room.chatCode] ?? 0;
+
+						return (
+							<Button
+								key={room.chatCode}
+								className={styles.roomItem}
+								onPress={() => {
+									chatContext.requestHistory(room.chatCode);
+									chatContext.setActiveRoom(room.chatCode);
+									chatContext.markAsRead(room.chatCode);
+								}}
+							>
+								<div className={styles.roomInfo}>
+									<span className={styles.roomName}>{room.header}</span>
+									<span className={styles.roomLastMessage}>
+										{room.subtitle}
+									</span>
+								</div>
+								{unread > 0 ? (
+									<span className={styles.unreadBadge}>{unread}</span>
+								) : room.lastMessageTimestamp > 0 ? (
+									<span className={styles.roomTimestamp}>
+										{formatDateTime(new Date(room.lastMessageTimestamp), {
+											hour: "numeric",
+											minute: "numeric",
+										})}
+									</span>
+								) : null}
+							</Button>
+						);
+					})
+				)}
 			</div>
 		</div>
 	);
 }
 
-function ChatView({ room, onBack }: { room: MockRoom; onBack: () => void }) {
-	const messages = mockMessagesForRoom(room.code);
+function ChatView({ onClose }: { onClose?: () => void }) {
+	const chatContext = useChatContext()!;
+	const activeRoom = chatContext.activeRoom!;
 
-	const mockChat = {
+	const room = chatContext.rooms.find((r) => r.chatCode === activeRoom);
+	const messages = chatContext.messagesForRoom(activeRoom);
+
+	const chatAdapter = {
 		messages,
-		send: () => {},
-		currentRoom: room.code,
+		send: (contents: string) => chatContext.send(activeRoom, contents),
+		currentRoom: activeRoom,
 		setCurrentRoom: () => {},
-		readyState: "CONNECTED" as const,
+		readyState: chatContext.readyState,
 		unseenMessages: new Map<string, number>(),
 	};
 
+	const handleBack = () => {
+		chatContext.setActiveRoom(null);
+	};
+
 	return (
 		<div className={styles.sidebar}>
 			<div className={styles.chatHeader}>
-				<Button className={styles.backButton} onPress={onBack}>
+				<Button className={styles.backButton} onPress={handleBack}>
 					<ArrowLeft size={18} />
 				</Button>
-				<img src={room.imageUrl} alt="" className={styles.chatHeaderImage} />
-				<span className={styles.chatHeaderTitle}>{room.name}</span>
+				<span className={styles.chatHeaderTitle}>
+					{room?.header ?? activeRoom}
+				</span>
+				{onClose ? (
+					<Button className={styles.closeButton} onPress={onClose}>
+						<X size={18} />
+					</Button>
+				) : null}
 			</div>
 			<div className={styles.chatContainer}>
 				<Chat
-					users={MOCK_USERS}
-					rooms={[{ label: room.name, code: room.code }]}
-					chat={mockChat}
-					disabled
+					users={chatContext.chatUsers}
+					rooms={[
+						{
+							label: room?.header ?? "Chat",
+							code: activeRoom,
+						},
+					]}
+					chat={chatAdapter}
 				/>
 			</div>
 		</div>
diff --git a/app/components/layout/index.tsx b/app/components/layout/index.tsx
index cd48f6bd8..3ca6fbb2c 100644
--- a/app/components/layout/index.tsx
+++ b/app/components/layout/index.tsx
@@ -22,6 +22,7 @@ import { Flipped, Flipper } from "react-flip-toolkit";
 import { useTranslation } from "react-i18next";
 import { Link, useFetcher, useLocation, useMatches } from "react-router";
 import { useUser } from "~/features/auth/core/user";
+import { useChatContext } from "~/features/chat/useChatContext";
 import { FriendMenu } from "~/features/friends/components/FriendMenu";
 import type { RootLoaderData } from "~/root";
 import type { Breadcrumb, SendouRouteHandle } from "~/utils/remix.server";
@@ -40,7 +41,7 @@ import { NotificationDot } from "../NotificationDot";
 import { ListLink, SideNav, SideNavFooter, SideNavHeader } from "../SideNav";
 import sideNavStyles from "../SideNav.module.css";
 import { StreamListItems } from "../StreamListItems";
-import { ChatSidebar, MOCK_TOTAL_UNREAD } from "./ChatSidebar";
+import { ChatSidebar } from "./ChatSidebar";
 import { Footer } from "./Footer";
 import styles from "./index.module.css";
 import { LogInButtonContainer } from "./LogInButtonContainer";
@@ -172,13 +173,16 @@ export function Layout({
 	children: React.ReactNode;
 	data?: RootLoaderData;
 }) {
+	const chatContext = useChatContext();
 	const [sideNavCollapsed, setSideNavCollapsed] = useSideNavCollapsed(
 		data?.sidenavCollapsed ?? false,
 	);
 	const [sideNavModalOpen, setSideNavModalOpen] = React.useState(false);
-	const [chatSidebarOpen, setChatSidebarOpen] = React.useState(false);
 	const [chatSidebarModalOpen, setChatSidebarModalOpen] = React.useState(false);
 
+	const chatSidebarOpen = chatContext?.sidebarOpen ?? false;
+	const setChatSidebarOpen = chatContext?.setSidebarOpen ?? (() => {});
+
 	const { t } = useTranslation(["front", "common"]);
 	const { formatRelativeDate } = useTimeFormat();
 	const location = useLocation();
@@ -369,7 +373,7 @@ export function Layout({
 								? () => setChatSidebarModalOpen((prev) => !prev)
 								: undefined
 						}
-						chatUnreadCount={MOCK_TOTAL_UNREAD}
+						chatUnreadCount={chatContext?.totalUnreadCount}
 					/>
 				</header>
 				{showLeaderboard ? <MyRampUnit /> : null}
diff --git a/app/features/chat/ChatProvider.tsx b/app/features/chat/ChatProvider.tsx
new file mode 100644
index 000000000..a095a6921
--- /dev/null
+++ b/app/features/chat/ChatProvider.tsx
@@ -0,0 +1,495 @@
+import { nanoid } from "nanoid";
+import { WebSocket } from "partysocket";
+import * as React from "react";
+import { useMatches, useRevalidator } from "react-router";
+import { logger } from "~/utils/logger";
+import { soundPath } from "~/utils/urls";
+import type { RoomInfo, ServerRoomInfo } from "./chat-provider-types";
+import type { ChatMessage, ChatUser } from "./chat-types";
+import { messageTypeToSound, soundEnabled, soundVolume } from "./chat-utils";
+import { ChatContext } from "./useChatContext";
+
+const PING_INTERVAL_MS = 60_000;
+const LOCAL_STORAGE_PREFIX = "chat_read__";
+const USER_FETCH_BATCH_DELAY_MS = 200;
+
+function flattenServerRoom(serverRoom: ServerRoomInfo): RoomInfo {
+	return {
+		chatCode: serverRoom.chatCode,
+		header: serverRoom.metadata.header,
+		subtitle: serverRoom.metadata.subtitle ?? "",
+		url: serverRoom.metadata.url ?? "",
+		participantUserIds: serverRoom.metadata.participantUserIds,
+		expiresAt: serverRoom.metadata.expiresAt,
+		lastMessageTimestamp: serverRoom.lastMessageTimestamp ?? 0,
+		totalMessageCount: serverRoom.totalMessageCount,
+	};
+}
+
+function localStorageKey(chatCode: string) {
+	return `${LOCAL_STORAGE_PREFIX}${chatCode}`;
+}
+
+function readLastReadCount(chatCode: string): number {
+	try {
+		const stored = localStorage.getItem(localStorageKey(chatCode));
+		return stored ? Number(stored) : 0;
+	} catch {
+		return 0;
+	}
+}
+
+function writeLastReadCount(chatCode: string, count: number) {
+	try {
+		localStorage.setItem(localStorageKey(chatCode), String(count));
+	} catch {
+		// localStorage may be unavailable
+	}
+}
+
+export function ChatProvider({
+	user,
+	children,
+}: {
+	user?: { id: number } | null;
+	children: React.ReactNode;
+}) {
+	if (!user) {
+		return <>{children}</>;
+	}
+
+	return <ChatProviderInner userId={user.id}>{children}</ChatProviderInner>;
+}
+
+function ChatProviderInner({
+	userId,
+	children,
+}: {
+	userId: number;
+	children: React.ReactNode;
+}) {
+	const { revalidate } = useRevalidator();
+
+	const [rooms, setRooms] = React.useState<RoomInfo[]>([]);
+	const [messagesByRoom, setMessagesByRoom] = React.useState<
+		Record<string, ChatMessage[]>
+	>({});
+	const [chatUsersCache, setChatUsersCache] = React.useState<
+		Record<number, ChatUser>
+	>({});
+	const [readyState, setReadyState] = React.useState<
+		"CONNECTING" | "CONNECTED" | "CLOSED"
+	>("CONNECTING");
+	const [sidebarOpen, _setSidebarOpen] = React.useState(false);
+	const [activeRoom, setActiveRoom] = React.useState<string | null>(null);
+	const [unreadCounts, setUnreadCounts] = React.useState<
+		Record<string, number>
+	>({});
+
+	const ws = React.useRef<WebSocket>(undefined);
+	const pendingUserFetches = React.useRef<Set<number>>(new Set());
+	const fetchTimeoutRef =
+		React.useRef<ReturnType<typeof setTimeout>>(undefined);
+
+	const computeUnreadCounts = React.useCallback((roomList: RoomInfo[]) => {
+		const counts: Record<string, number> = {};
+		for (const room of roomList) {
+			const lastRead = readLastReadCount(room.chatCode);
+			const unread = Math.max(0, room.totalMessageCount - lastRead);
+			counts[room.chatCode] = unread;
+		}
+		setUnreadCounts(counts);
+	}, []);
+
+	const fetchUnknownUsers = React.useCallback((userIds: number[]) => {
+		for (const id of userIds) {
+			pendingUserFetches.current.add(id);
+		}
+
+		clearTimeout(fetchTimeoutRef.current);
+		fetchTimeoutRef.current = setTimeout(async () => {
+			const ids = [...pendingUserFetches.current];
+			pendingUserFetches.current.clear();
+
+			if (ids.length === 0) return;
+
+			try {
+				// xxx: we should use remix fetcher for this
+				const response = await fetch(`/api/chat-users?ids=${ids.join(",")}`);
+				if (!response.ok) return;
+
+				const users = (await response.json()) as Record<number, ChatUser>;
+				setChatUsersCache((prev) => ({ ...prev, ...users }));
+			} catch {
+				// fetch failed, will retry on next unknown user
+			}
+		}, USER_FETCH_BATCH_DELAY_MS);
+	}, []);
+
+	const onMessage = React.useEffectEvent((e: MessageEvent) => {
+		const parsed = JSON.parse(e.data);
+
+		// Initial rooms payload on connect
+		if (parsed.rooms && Array.isArray(parsed.rooms)) {
+			const serverRooms = parsed.rooms as ServerRoomInfo[];
+			const roomList = serverRooms.map(flattenServerRoom);
+			setRooms(roomList);
+
+			const allChatUsers: Record<number, ChatUser> = {};
+			for (const sr of serverRooms) {
+				Object.assign(allChatUsers, sr.metadata.chatUsers);
+			}
+			setChatUsersCache((prev) => ({ ...prev, ...allChatUsers }));
+			computeUnreadCounts(roomList);
+			return;
+		}
+
+		// ROOM_JOINED: new room added
+		if (parsed.event === "ROOM_JOINED" && parsed.room) {
+			const serverRoom = parsed.room as ServerRoomInfo;
+			const newRoom = flattenServerRoom(serverRoom);
+			setRooms((prev) => {
+				const exists = prev.some((r) => r.chatCode === newRoom.chatCode);
+				if (exists) return prev;
+				return [...prev, newRoom];
+			});
+
+			setChatUsersCache((prev) => ({
+				...prev,
+				...serverRoom.metadata.chatUsers,
+			}));
+			return;
+		}
+
+		// CHAT_HISTORY response
+		if (parsed.event === "CHAT_HISTORY" && Array.isArray(parsed.messages)) {
+			const chatCode = parsed.chatCode as string;
+			const messages = parsed.messages as ChatMessage[];
+			setMessagesByRoom((prev) => ({
+				...prev,
+				[chatCode]: messages,
+			}));
+			return;
+		}
+
+		// Regular message(s)
+		const messageArr = (
+			Array.isArray(parsed) ? parsed : [parsed]
+		) as (ChatMessage & { totalMessageCount?: number })[];
+
+		const isSystemMessage = Boolean(messageArr[0].type);
+		if (isSystemMessage) {
+			revalidate();
+		}
+
+		const sound = messageTypeToSound(messageArr[0].type);
+		if (sound && soundEnabled(sound)) {
+			const audio = new Audio(soundPath(sound));
+			audio.volume = soundVolume() / 100;
+			void audio
+				.play()
+				.catch((err) => logger.error(`Couldn't play sound: ${err}`));
+		}
+
+		if (messageArr[0].revalidateOnly) return;
+
+		for (const msg of messageArr) {
+			const roomCode = msg.room;
+			setMessagesByRoom((prev) => {
+				const existing = prev[roomCode] ?? [];
+				const pendingIndex = existing.findIndex(
+					(m) => m.id === msg.id && m.pending,
+				);
+
+				if (pendingIndex !== -1) {
+					const updated = [...existing];
+					updated[pendingIndex] = msg;
+					return { ...prev, [roomCode]: updated };
+				}
+
+				return { ...prev, [roomCode]: [...existing, msg] };
+			});
+
+			if (msg.userId && !chatUsersCache[msg.userId]) {
+				fetchUnknownUsers([msg.userId]);
+			}
+
+			if (msg.totalMessageCount) {
+				setRooms((prev) =>
+					prev.map((r) =>
+						r.chatCode === roomCode
+							? {
+									...r,
+									lastMessageTimestamp: msg.timestamp,
+									totalMessageCount: Math.max(
+										r.totalMessageCount,
+										msg.totalMessageCount!,
+									),
+								}
+							: r,
+					),
+				);
+
+				if (roomCode === activeRoom && sidebarOpen) {
+					writeLastReadCount(roomCode, msg.totalMessageCount);
+				} else {
+					setUnreadCounts((prev) => ({
+						...prev,
+						[roomCode]: (prev[roomCode] ?? 0) + 1,
+					}));
+				}
+			}
+		}
+	});
+
+	// WebSocket connection
+	React.useEffect(() => {
+		const wsUrl = import.meta.env.VITE_SKALOP_WS_URL;
+		if (!wsUrl) {
+			logger.warn("No WS URL provided, ChatProvider not connecting");
+			setReadyState("CLOSED");
+			return;
+		}
+
+		ws.current = new WebSocket(wsUrl, [], {
+			maxReconnectionDelay: 20_000,
+			reconnectionDelayGrowFactor: 1.5,
+		});
+
+		ws.current.onopen = () => {
+			setReadyState("CONNECTED");
+		};
+
+		ws.current.onclose = () => setReadyState("CLOSED");
+		ws.current.onerror = () => setReadyState("CLOSED");
+		ws.current.onmessage = onMessage;
+
+		const wsCurrent = ws.current;
+		return () => {
+			wsCurrent?.close();
+		};
+	}, []);
+
+	// Ping to keep connection alive
+	React.useEffect(() => {
+		const interval = setInterval(() => {
+			ws.current?.send("");
+		}, PING_INTERVAL_MS);
+
+		return () => clearInterval(interval);
+	}, []);
+
+	// Listen for cross-tab localStorage changes for unread tracking
+	React.useEffect(() => {
+		const handleStorage = (e: StorageEvent) => {
+			if (!e.key?.startsWith(LOCAL_STORAGE_PREFIX)) return;
+			const chatCode = e.key.slice(LOCAL_STORAGE_PREFIX.length);
+			const newCount = e.newValue ? Number(e.newValue) : 0;
+
+			setUnreadCounts((prev) => {
+				const room = rooms.find((r) => r.chatCode === chatCode);
+				if (!room) return prev;
+				return {
+					...prev,
+					[chatCode]: Math.max(0, room.totalMessageCount - newCount),
+				};
+			});
+		};
+
+		window.addEventListener("storage", handleStorage);
+		return () => window.removeEventListener("storage", handleStorage);
+	}, [rooms]);
+
+	const messagesForRoom = React.useCallback(
+		(chatCode: string) => {
+			return (messagesByRoom[chatCode] ?? []).sort(
+				(a, b) => a.timestamp - b.timestamp,
+			);
+		},
+		[messagesByRoom],
+	);
+
+	const send = React.useCallback(
+		(chatCode: string, contents: string) => {
+			const id = nanoid();
+			const message: ChatMessage = {
+				id,
+				room: chatCode,
+				contents,
+				timestamp: Date.now(),
+				userId,
+				pending: true,
+			};
+
+			// Optimistic add
+			setMessagesByRoom((prev) => ({
+				...prev,
+				[chatCode]: [...(prev[chatCode] ?? []), message],
+			}));
+
+			ws.current?.send(
+				JSON.stringify({ event: "MESSAGE", chatCode, id, contents }),
+			);
+		},
+		[userId],
+	);
+
+	const subscribe = React.useCallback((chatCode: string) => {
+		ws.current?.send(JSON.stringify({ event: "SUBSCRIBE", chatCode }));
+	}, []);
+
+	const unsubscribe = React.useCallback((chatCode: string) => {
+		ws.current?.send(JSON.stringify({ event: "UNSUBSCRIBE", chatCode }));
+	}, []);
+
+	const requestHistory = React.useCallback((chatCode: string) => {
+		ws.current?.send(JSON.stringify({ event: "CHAT_HISTORY", chatCode }));
+	}, []);
+
+	const markAsRead = React.useCallback(
+		(chatCode: string) => {
+			const room = rooms.find((r) => r.chatCode === chatCode);
+			const messageCount =
+				room?.totalMessageCount ?? messagesByRoom[chatCode]?.length ?? 0;
+			writeLastReadCount(chatCode, messageCount);
+			setUnreadCounts((prev) => ({ ...prev, [chatCode]: 0 }));
+		},
+		[rooms, messagesByRoom],
+	);
+
+	const totalUnreadCount = Object.values(unreadCounts).reduce(
+		(sum, count) => sum + count,
+		0,
+	);
+
+	const setSidebarOpen = React.useCallback(
+		(open: boolean) => {
+			_setSidebarOpen(open);
+			if (open && activeRoom) {
+				markAsRead(activeRoom);
+			}
+		},
+		[activeRoom, markAsRead],
+	);
+
+	useChatRouteSync({
+		rooms,
+		userId,
+		setActiveRoom,
+		setSidebarOpen,
+		subscribe,
+		unsubscribe,
+	});
+
+	const contextValue = React.useMemo(
+		() => ({
+			rooms,
+			messagesForRoom,
+			send,
+			subscribe,
+			unsubscribe,
+			requestHistory,
+			markAsRead,
+			unreadCounts,
+			totalUnreadCount,
+			readyState,
+			chatUsers: chatUsersCache,
+			sidebarOpen,
+			setSidebarOpen,
+			activeRoom,
+			setActiveRoom,
+		}),
+		[
+			rooms,
+			messagesForRoom,
+			send,
+			subscribe,
+			unsubscribe,
+			requestHistory,
+			markAsRead,
+			unreadCounts,
+			totalUnreadCount,
+			readyState,
+			chatUsersCache,
+			sidebarOpen,
+			activeRoom,
+			setSidebarOpen,
+		],
+	);
+
+	return (
+		<ChatContext.Provider value={contextValue}>{children}</ChatContext.Provider>
+	);
+}
+
+function useChatRouteSync({
+	rooms,
+	userId,
+	setActiveRoom,
+	setSidebarOpen,
+	subscribe,
+	unsubscribe,
+}: {
+	rooms: RoomInfo[];
+	userId: number;
+	setActiveRoom: (chatCode: string | null) => void;
+	setSidebarOpen: (open: boolean) => void;
+	subscribe: (chatCode: string) => void;
+	unsubscribe: (chatCode: string) => void;
+}) {
+	const matches = useMatches();
+	const subscribedRoomRef = React.useRef<string | null>(null);
+
+	React.useEffect(() => {
+		let chatCode: string | null = null;
+
+		for (const match of matches) {
+			const matchData = match.data as { chatCode?: string } | undefined;
+			if (matchData?.chatCode) {
+				chatCode = matchData.chatCode;
+				break;
+			}
+		}
+
+		if (!chatCode) {
+			// Leaving a chat route: unsubscribe from staff-subscribed rooms
+			if (subscribedRoomRef.current) {
+				unsubscribe(subscribedRoomRef.current);
+				subscribedRoomRef.current = null;
+			}
+			return;
+		}
+
+		const room = rooms.find((r) => r.chatCode === chatCode);
+
+		if (room) {
+			const isParticipant = room.participantUserIds.includes(userId);
+
+			if (isParticipant) {
+				setActiveRoom(chatCode);
+				setSidebarOpen(true);
+			} else {
+				// Staff/TO viewing: subscribe temporarily
+				subscribe(chatCode);
+				subscribedRoomRef.current = chatCode;
+				setActiveRoom(chatCode);
+				setSidebarOpen(true);
+			}
+		}
+
+		return () => {
+			if (subscribedRoomRef.current) {
+				unsubscribe(subscribedRoomRef.current);
+				subscribedRoomRef.current = null;
+			}
+		};
+	}, [
+		matches,
+		rooms,
+		userId,
+		setActiveRoom,
+		setSidebarOpen,
+		subscribe,
+		unsubscribe,
+	]);
+}
diff --git a/app/features/chat/ChatSystemMessage.server.ts b/app/features/chat/ChatSystemMessage.server.ts
index 432211839..9eaf0bf70 100644
--- a/app/features/chat/ChatSystemMessage.server.ts
+++ b/app/features/chat/ChatSystemMessage.server.ts
@@ -2,7 +2,7 @@ import { nanoid } from "nanoid";
 import { IS_E2E_TEST_RUN } from "~/utils/e2e";
 import invariant from "~/utils/invariant";
 import { logger } from "~/utils/logger";
-import type { ChatMessage } from "./chat-types";
+import type { ChatMessage, ChatUser } from "./chat-types";
 
 const SKALOP_TOKEN_HEADER_NAME = "Skalop-Token";
 
@@ -47,7 +47,65 @@ export const send: ChatSystemMessageService["send"] = (partialMsg) => {
 
 	return void fetch(process.env.SKALOP_SYSTEM_MESSAGE_URL!, {
 		method: "POST",
-		body: JSON.stringify(fullMessages),
-		headers: [[SKALOP_TOKEN_HEADER_NAME, process.env.SKALOP_TOKEN!]],
+		body: JSON.stringify({
+			action: "sendMessage",
+			messages: fullMessages,
+		}),
+		headers: [
+			[SKALOP_TOKEN_HEADER_NAME, process.env.SKALOP_TOKEN!],
+			["Content-Type", "application/json"],
+		],
 	}).catch(logger.error);
 };
+
+interface SetMetadataArgs {
+	chatCode: string;
+	header: string;
+	subtitle: string;
+	url: string;
+	participantUserIds: number[];
+	chatUsers: Record<number, ChatUser>;
+	expiresAt: number;
+}
+
+// xxx: actually there is no dedup like this, for as long as the service is up, we dont resend metadata
+const DEDUP_INTERVAL_MS = 30_000;
+const DEDUP_PRUNE_MS = 1000 * 60 * 60 * 24 * 30;
+const metadataDedup = new Map<string, number>();
+
+export function setMetadata(args: SetMetadataArgs) {
+	if (systemMessagesDisabled) return;
+	if (!process.env.SKALOP_SYSTEM_MESSAGE_URL) return;
+
+	const now = Date.now();
+	const lastSent = metadataDedup.get(args.chatCode);
+	if (lastSent && now - lastSent < DEDUP_INTERVAL_MS) return;
+	metadataDedup.set(args.chatCode, now);
+
+	// Prune old entries
+	for (const [key, timestamp] of metadataDedup) {
+		if (now - timestamp > DEDUP_PRUNE_MS) {
+			metadataDedup.delete(key);
+		}
+	}
+
+	return void fetch(process.env.SKALOP_SYSTEM_MESSAGE_URL, {
+		method: "POST",
+		body: JSON.stringify({
+			action: "setMetadata",
+			chatCode: args.chatCode,
+			metadata: {
+				participantUserIds: args.participantUserIds,
+				chatUsers: args.chatUsers,
+				expiresAt: args.expiresAt,
+				header: args.header,
+				subtitle: args.subtitle,
+				url: args.url,
+			},
+		}),
+		headers: [
+			[SKALOP_TOKEN_HEADER_NAME, process.env.SKALOP_TOKEN!],
+			["Content-Type", "application/json"],
+		],
+	}).catch(logger.error);
+}
diff --git a/app/features/chat/chat-constants.ts b/app/features/chat/chat-constants.ts
index 8e0f93316..cb2fc7b60 100644
--- a/app/features/chat/chat-constants.ts
+++ b/app/features/chat/chat-constants.ts
@@ -1 +1,7 @@
 export const MESSAGE_MAX_LENGTH = 200;
+
+// xxx: use date-fns
+export const SENDOUQ_MATCH_EXPIRY_MS = 1000 * 60 * 60;
+export const TOURNAMENT_MATCH_EXPIRY_MS = 1000 * 60 * 60 * 2;
+export const LEAGUE_MATCH_EXPIRY_MS = 1000 * 60 * 60 * 24 * 30;
+export const SCRIM_EXPIRY_MS = 1000 * 60 * 60 * 3;
diff --git a/app/features/chat/chat-hooks.ts b/app/features/chat/chat-hooks.ts
index c2dddbc03..51a2ee265 100644
--- a/app/features/chat/chat-hooks.ts
+++ b/app/features/chat/chat-hooks.ts
@@ -1,13 +1,6 @@
-import { nanoid } from "nanoid";
-import { WebSocket } from "partysocket";
-import React from "react";
-import { useRevalidator } from "react-router";
-import invariant from "~/utils/invariant";
-import { logger } from "~/utils/logger";
-import { soundPath } from "~/utils/urls";
+import * as React from "react";
 import { useUser } from "../auth/core/user";
-import type { ChatMessage, ChatProps } from "./chat-types";
-import { messageTypeToSound, soundEnabled, soundVolume } from "./chat-utils";
+import type { ChatMessage } from "./chat-types";
 
 // increasing this = scrolling happens even when scrolled more upwards
 const THRESHOLD = 100;
@@ -76,211 +69,3 @@ export function useChatAutoScroll(
 		scrollToBottom,
 	};
 }
-
-// TODO: should contain unseen messages logic, now it's duplicated
-export function useChat({
-	rooms,
-	onNewMessage,
-	revalidates = true,
-	connected = true,
-}: {
-	/** Which chat rooms to join. */
-	rooms: ChatProps["rooms"];
-	/** Callback function when a new chat message is received. Note: not fired for system messages. */
-	onNewMessage?: (message: ChatMessage) => void;
-	/** If false, skips revalidating on new message. Can be used if more fine grained control is needed regarding when the revalidation happens to e.g. preserve local state. Defaults to true.  */
-	revalidates?: boolean;
-	/** If true, the chat is connected to the server. Defaults to true.  */
-	connected?: boolean;
-}) {
-	const { revalidate } = useRevalidator();
-	const shouldRevalidate = React.useRef<boolean>(undefined);
-	const user = useUser();
-
-	const [messages, setMessages] = React.useState<ChatMessage[]>([]);
-	const [readyState, setReadyState] = React.useState<
-		"CONNECTING" | "CONNECTED" | "CLOSED"
-	>("CONNECTING");
-	const [sentMessage, setSentMessage] = React.useState<ChatMessage>();
-	const [currentRoom, setCurrentRoom] = React.useState<string | undefined>(
-		rooms[0]?.code,
-	);
-
-	const ws = React.useRef<WebSocket>(undefined);
-	const lastSeenMessagesByRoomId = React.useRef<Map<string, string>>(new Map());
-
-	// same principal as here behind separating it into a ref: https://overreacted.io/making-setinterval-declarative-with-react-hooks/
-	React.useEffect(() => {
-		shouldRevalidate.current = revalidates;
-	}, [revalidates]);
-
-	React.useEffect(() => {
-		if (rooms.length === 0 || !connected) return;
-		if (!import.meta.env.VITE_SKALOP_WS_URL) {
-			logger.warn("No WS URL provided");
-			return;
-		}
-
-		const url = `${import.meta.env.VITE_SKALOP_WS_URL}?${rooms
-			.map((room) => `room=${room.code}`)
-			.join("&")}`;
-		ws.current = new WebSocket(url, [], {
-			maxReconnectionDelay: 10000 * 2,
-			reconnectionDelayGrowFactor: 1.5,
-		});
-		ws.current.onopen = () => {
-			setCurrentRoom(rooms[0].code);
-			setReadyState("CONNECTED");
-		};
-		ws.current.onclose = () => setReadyState("CLOSED");
-		ws.current.onerror = () => setReadyState("CLOSED");
-
-		ws.current.onmessage = (e) => {
-			const message = JSON.parse(e.data);
-			const messageArr = (
-				Array.isArray(message) ? message : [message]
-			) as ChatMessage[];
-
-			// something interesting happened
-			// -> let's run data loaders so they can see it without needing to refresh the page
-			const isSystemMessage = Boolean(messageArr[0].type);
-			if (isSystemMessage && shouldRevalidate.current) {
-				revalidate();
-			}
-
-			const sound = messageTypeToSound(messageArr[0].type);
-			if (sound && soundEnabled(sound)) {
-				const audio = new Audio(soundPath(sound));
-				audio.volume = soundVolume() / 100;
-				void audio
-					.play()
-					.catch((e) => logger.error(`Couldn't play sound: ${e}`));
-			}
-
-			if (messageArr[0].revalidateOnly) {
-				return;
-			}
-
-			const isInitialLoad = Array.isArray(message);
-
-			if (isInitialLoad) {
-				lastSeenMessagesByRoomId.current = message.reduce((acc, cur) => {
-					acc.set(cur.room, cur.id);
-					return acc;
-				}, new Map<string, string>());
-			}
-
-			if (isInitialLoad) {
-				setMessages(messageArr);
-			} else {
-				if (!isSystemMessage) onNewMessage?.(message);
-				setMessages((messages) => [...messages, ...messageArr]);
-			}
-		};
-
-		const wsCurrent = ws.current;
-		return () => {
-			wsCurrent?.close();
-			setMessages([]);
-		};
-	}, [rooms, onNewMessage, revalidate, connected]);
-
-	React.useEffect(() => {
-		// ping every minute to keep connection alive
-		const interval = setInterval(() => {
-			ws.current?.send("");
-		}, 1000 * 60);
-
-		return () => {
-			clearInterval(interval);
-		};
-	}, []);
-
-	const send = React.useCallback(
-		(contents: string) => {
-			invariant(currentRoom);
-
-			const id = nanoid();
-			setSentMessage({
-				id,
-				room: currentRoom,
-				contents,
-				timestamp: Date.now(),
-				userId: user!.id,
-			});
-			ws.current!.send(JSON.stringify({ id, contents, room: currentRoom }));
-		},
-		[user, currentRoom],
-	);
-
-	let allMessages = messages;
-	if (sentMessage && !messages.some((msg) => msg.id === sentMessage.id)) {
-		allMessages = [...messages, { ...sentMessage, pending: true }];
-	}
-
-	const roomsMessages = allMessages
-		.filter((msg) => msg.room === currentRoom)
-		.sort((a, b) => a.timestamp - b.timestamp);
-	if (roomsMessages.length > 0 && currentRoom) {
-		lastSeenMessagesByRoomId.current.set(
-			currentRoom,
-			roomsMessages[roomsMessages.length - 1].id,
-		);
-	}
-
-	const unseenMessages = unseenMessagesCountByRoomId({
-		messages,
-		lastSeenMessages: lastSeenMessagesByRoomId.current,
-	});
-
-	return {
-		messages: roomsMessages,
-		send,
-		currentRoom,
-		setCurrentRoom,
-		readyState,
-		unseenMessages,
-	};
-}
-
-/** Listens to system messages sent via WebSocket to the given room triggering data loader revalidations. */
-export function useWebsocketRevalidation({
-	room,
-	connected,
-}: {
-	room: string;
-	/** If true, the websocket is connected. Defaults to true.  */
-	connected?: boolean;
-}) {
-	const rooms = React.useMemo(() => [{ label: room, code: room }], [room]);
-
-	useChat({
-		rooms,
-		connected,
-	});
-}
-
-function unseenMessagesCountByRoomId({
-	messages,
-	lastSeenMessages,
-}: {
-	messages: ChatMessage[];
-	lastSeenMessages: Map<string, string>;
-}) {
-	const lastUnseenEncountered = new Set<string>();
-
-	const unseenMessages = messages.filter((msg) => {
-		if (msg.id === lastSeenMessages.get(msg.room)) {
-			lastUnseenEncountered.add(msg.room);
-			return false;
-		}
-
-		return lastUnseenEncountered.has(msg.room);
-	});
-
-	return unseenMessages.reduce((acc, cur) => {
-		const count = acc.get(cur.room) ?? 0;
-		acc.set(cur.room, count + 1);
-		return acc;
-	}, new Map<string, number>());
-}
diff --git a/app/features/chat/chat-provider-types.ts b/app/features/chat/chat-provider-types.ts
new file mode 100644
index 000000000..725ba82c3
--- /dev/null
+++ b/app/features/chat/chat-provider-types.ts
@@ -0,0 +1,49 @@
+import type { ChatMessage, ChatUser } from "./chat-types";
+
+/** Metadata stored per room on the Skalop server */
+export interface RoomMetadata {
+	participantUserIds: number[];
+	chatUsers: Record<number, ChatUser>;
+	expiresAt: number;
+	header: string;
+	subtitle?: string;
+	url?: string;
+}
+
+/** Room info as returned by Skalop on connect and ROOM_JOINED events */
+export interface ServerRoomInfo {
+	chatCode: string;
+	metadata: RoomMetadata;
+	lastMessageTimestamp: number | null;
+	totalMessageCount: number;
+}
+
+/** Flattened room info used by the UI */
+export interface RoomInfo {
+	chatCode: string;
+	header: string;
+	subtitle: string;
+	url: string;
+	participantUserIds: number[];
+	expiresAt: number;
+	lastMessageTimestamp: number;
+	totalMessageCount: number;
+}
+
+export interface ChatContextValue {
+	rooms: RoomInfo[];
+	messagesForRoom: (chatCode: string) => ChatMessage[];
+	send: (chatCode: string, contents: string) => void;
+	subscribe: (chatCode: string) => void;
+	unsubscribe: (chatCode: string) => void;
+	requestHistory: (chatCode: string) => void;
+	markAsRead: (chatCode: string) => void;
+	unreadCounts: Record<string, number>;
+	totalUnreadCount: number;
+	readyState: "CONNECTING" | "CONNECTED" | "CLOSED";
+	chatUsers: Record<number, ChatUser>;
+	sidebarOpen: boolean;
+	setSidebarOpen: (open: boolean) => void;
+	activeRoom: string | null;
+	setActiveRoom: (chatCode: string | null) => void;
+}
diff --git a/app/features/chat/chat-types.ts b/app/features/chat/chat-types.ts
index 67361a101..3796891f1 100644
--- a/app/features/chat/chat-types.ts
+++ b/app/features/chat/chat-types.ts
@@ -42,10 +42,8 @@ export interface ChatProps {
 	className?: string;
 	messagesContainerClassName?: string;
 	hidden?: boolean;
-	onNewMessage?: (message: ChatMessage) => void;
 	onMount?: () => void;
 	onUnmount?: () => void;
 	disabled?: boolean;
 	missingUserName?: string;
-	revalidates?: boolean;
 }
diff --git a/app/features/chat/components/Chat.tsx b/app/features/chat/components/Chat.tsx
index 3ebddf5a3..4955c0862 100644
--- a/app/features/chat/components/Chat.tsx
+++ b/app/features/chat/components/Chat.tsx
@@ -9,18 +9,19 @@ import { SendouButton } from "../../../components/elements/Button";
 import { SubmitButton } from "../../../components/SubmitButton";
 import { useTimeFormat } from "../../../hooks/useTimeFormat";
 import { MESSAGE_MAX_LENGTH } from "../chat-constants";
-import { useChat, useChatAutoScroll } from "../chat-hooks";
+import { useChatAutoScroll } from "../chat-hooks";
 import type { ChatMessage, ChatProps, ChatUser } from "../chat-types";
 import styles from "./Chat.module.css";
 
-export function ConnectedChat(props: ChatProps) {
-	const chat = useChat(props);
-
-	return <Chat {...props} chat={chat} />;
+export interface ChatAdapter {
+	messages: ChatMessage[];
+	send: (contents: string) => void;
+	currentRoom: string | undefined;
+	setCurrentRoom: (room: string) => void;
+	readyState: "CONNECTING" | "CONNECTED" | "CLOSED";
+	unseenMessages: Map<string, number>;
 }
 
-// xxx: if we go with global chat refactor a lot / delete this
-
 export function Chat({
 	users,
 	rooms,
@@ -32,8 +33,8 @@ export function Chat({
 	onUnmount,
 	disabled,
 	missingUserName,
-}: Omit<ChatProps, "revalidates" | "onNewMessage"> & {
-	chat: ReturnType<typeof useChat>;
+}: Omit<ChatProps, "onNewMessage" | "revalidates"> & {
+	chat: ChatAdapter;
 }) {
 	const { t } = useTranslation(["common"]);
 	const messagesContainerRef = React.useRef<HTMLOListElement>(null);
diff --git a/app/features/chat/routes/api.chat-users.ts b/app/features/chat/routes/api.chat-users.ts
new file mode 100644
index 000000000..0b59dfb22
--- /dev/null
+++ b/app/features/chat/routes/api.chat-users.ts
@@ -0,0 +1,27 @@
+import type { LoaderFunctionArgs } from "react-router";
+import { requireUser } from "~/features/auth/core/user.server";
+import * as UserRepository from "~/features/user-page/UserRepository.server";
+
+export const loader = async ({ request }: LoaderFunctionArgs) => {
+	requireUser();
+
+	const url = new URL(request.url);
+	const idsParam = url.searchParams.get("ids");
+
+	if (!idsParam) {
+		return Response.json({});
+	}
+
+	// xxx: use zod
+	const parsedIds = idsParam
+		.split(",")
+		.map(Number)
+		.filter((id) => Number.isInteger(id) && id > 0);
+
+	if (parsedIds.length === 0) {
+		return Response.json({});
+	}
+
+	const users = await UserRepository.findChatUsersByUserIds(parsedIds);
+	return Response.json(users);
+};
diff --git a/app/features/chat/useChatContext.ts b/app/features/chat/useChatContext.ts
new file mode 100644
index 000000000..7e83cac53
--- /dev/null
+++ b/app/features/chat/useChatContext.ts
@@ -0,0 +1,8 @@
+import * as React from "react";
+import type { ChatContextValue } from "./chat-provider-types";
+
+export const ChatContext = React.createContext<ChatContextValue | null>(null);
+
+export function useChatContext(): ChatContextValue | null {
+	return React.useContext(ChatContext);
+}
diff --git a/app/features/scrims/loaders/scrims.$id.server.ts b/app/features/scrims/loaders/scrims.$id.server.ts
index 9af6ec775..bf2df6121 100644
--- a/app/features/scrims/loaders/scrims.$id.server.ts
+++ b/app/features/scrims/loaders/scrims.$id.server.ts
@@ -1,4 +1,6 @@
 import type { LoaderFunctionArgs } from "react-router";
+import { setMetadata } from "~/features/chat/ChatSystemMessage.server";
+import { SCRIM_EXPIRY_MS } from "~/features/chat/chat-constants";
 import { tournamentDataCached } from "~/features/tournament-bracket/core/Tournament.server";
 import * as UserRepository from "~/features/user-page/UserRepository.server";
 import { notFoundIfFalsy } from "../../../utils/remix.server";
@@ -25,10 +27,24 @@ export const loader = async ({ params }: LoaderFunctionArgs) => {
 	}
 
 	const participantIds = Scrim.participantIdsListFromAccepted(post);
+	const chatUsers = await UserRepository.findChatUsersByUserIds(participantIds);
+
+	// xxx: additional condition
+	if (post.chatCode) {
+		setMetadata({
+			chatCode: post.chatCode,
+			// xxx: better header+subtitle
+			header: "Scrim",
+			subtitle: `Scrim #${post.id}`,
+			url: `/scrims/${post.id}`,
+			participantUserIds: participantIds,
+			chatUsers,
+			expiresAt: Date.now() + SCRIM_EXPIRY_MS,
+		});
+	}
 
 	return {
 		post,
-		chatUsers: await UserRepository.findChatUsersByUserIds(participantIds),
 		anyUserPrefersNoScreen:
 			await UserRepository.anyUserPrefersNoScreen(participantIds),
 		tournamentMapPool: post.mapsTournament
diff --git a/app/features/scrims/routes/scrims.$id.tsx b/app/features/scrims/routes/scrims.$id.tsx
index cfe157b72..85ed632ba 100644
--- a/app/features/scrims/routes/scrims.$id.tsx
+++ b/app/features/scrims/routes/scrims.$id.tsx
@@ -1,5 +1,4 @@
 import clsx from "clsx";
-import * as React from "react";
 import { useTranslation } from "react-i18next";
 import { Link, useLoaderData } from "react-router";
 import { Alert } from "~/components/Alert";
@@ -29,7 +28,6 @@ import {
 	teamPage,
 	userPage,
 } from "../../../utils/urls";
-import { ConnectedChat } from "../../chat/components/Chat";
 import { action } from "../actions/scrims.$id.server";
 import * as Scrim from "../core/Scrim";
 import { loader } from "../loaders/scrims.$id.server";
@@ -110,7 +108,6 @@ export default function ScrimPage() {
 					/>
 				) : null}
 			</div>
-			<ScrimChat />
 		</Main>
 	);
 }
@@ -276,24 +273,3 @@ function MapsLink({
 		</div>
 	);
 }
-
-function ScrimChat() {
-	const data = useLoaderData<typeof loader>();
-
-	const chatCode = data.post.chatCode;
-	const rooms = React.useMemo(
-		() => (chatCode ? [{ label: "Scrim", code: chatCode }] : []),
-		[chatCode],
-	);
-
-	if (!chatCode) {
-		logger.warn("No chat code found");
-		return null;
-	}
-
-	return (
-		<div className={styles.chatContainer}>
-			<ConnectedChat users={data.chatUsers} rooms={rooms} />
-		</div>
-	);
-}
diff --git a/app/features/sendouq-match/loaders/q.match.$id.server.ts b/app/features/sendouq-match/loaders/q.match.$id.server.ts
index 0d2ab3705..dd272dd8e 100644
--- a/app/features/sendouq-match/loaders/q.match.$id.server.ts
+++ b/app/features/sendouq-match/loaders/q.match.$id.server.ts
@@ -1,10 +1,13 @@
 import type { LoaderFunctionArgs } from "react-router";
 import { getUser } from "~/features/auth/core/user.server";
+import { setMetadata } from "~/features/chat/ChatSystemMessage.server";
+import { SENDOUQ_MATCH_EXPIRY_MS } from "~/features/chat/chat-constants";
 import { SendouQ } from "~/features/sendouq/core/SendouQ.server";
 import * as PrivateUserNoteRepository from "~/features/sendouq/PrivateUserNoteRepository.server";
 import { reportedWeaponsToArrayOfArrays } from "~/features/sendouq-match/core/reported-weapons.server";
 import * as ReportedWeaponRepository from "~/features/sendouq-match/ReportedWeaponRepository.server";
 import * as SQMatchRepository from "~/features/sendouq-match/SQMatchRepository.server";
+import * as UserRepository from "~/features/user-page/UserRepository.server";
 import { notFoundIfFalsy, parseParams } from "~/utils/remix.server";
 import { qMatchPageParamsSchema } from "../q-match-schemas";
 
@@ -32,6 +35,27 @@ export const loader = async ({ params }: LoaderFunctionArgs) => {
 		? await ReportedWeaponRepository.findByMatchId(matchId)
 		: null;
 
+	// xxx: also if match is even ongoing
+	if (match.chatCode && user) {
+		const participantIds = [
+			...matchUnmapped.groupAlpha.members,
+			...matchUnmapped.groupBravo.members,
+		].map((m) => m.id);
+
+		const chatUsers =
+			await UserRepository.findChatUsersByUserIds(participantIds);
+
+		setMetadata({
+			chatCode: match.chatCode,
+			header: "SQ Match",
+			subtitle: `Match #${matchId}`,
+			url: `/q/match/${matchId}`,
+			participantUserIds: participantIds,
+			chatUsers,
+			expiresAt: Date.now() + SENDOUQ_MATCH_EXPIRY_MS,
+		});
+	}
+
 	return {
 		match,
 		reportedWeapons: match.reportedAt
diff --git a/app/features/sendouq-match/routes/q.match.$id.tsx b/app/features/sendouq-match/routes/q.match.$id.tsx
index 2ba7bd893..e7c9b2cf5 100644
--- a/app/features/sendouq-match/routes/q.match.$id.tsx
+++ b/app/features/sendouq-match/routes/q.match.$id.tsx
@@ -17,12 +17,6 @@ import { Divider } from "~/components/Divider";
 import { LinkButton, SendouButton } from "~/components/elements/Button";
 import { SendouPopover } from "~/components/elements/Popover";
 import { SendouSwitch } from "~/components/elements/Switch";
-import {
-	SendouTab,
-	SendouTabList,
-	SendouTabPanel,
-	SendouTabs,
-} from "~/components/elements/Tabs";
 import { FormWithConfirm } from "~/components/FormWithConfirm";
 import { Image, ModeImage, StageImage, WeaponImage } from "~/components/Image";
 import { DiscordIcon } from "~/components/icons/Discord";
@@ -32,9 +26,6 @@ import { SubmitButton } from "~/components/SubmitButton";
 import { WeaponSelect } from "~/components/WeaponSelect";
 import type { Tables } from "~/db/tables";
 import { useUser } from "~/features/auth/core/user";
-import { useChat } from "~/features/chat/chat-hooks";
-import type { ChatProps } from "~/features/chat/chat-types";
-import { Chat } from "~/features/chat/components/Chat";
 import * as Seasons from "~/features/mmr/core/Seasons";
 import { GroupCard } from "~/features/sendouq/components/GroupCard";
 import { FULL_GROUP_SIZE } from "~/features/sendouq/q-constants";
@@ -662,70 +653,12 @@ function BottomSection({
 	const { width } = useWindowSize();
 	const isMobile = width < 750;
 	const isMounted = useIsMounted();
-	const [isReportingWeapons, setIsReportingWeapons] = React.useState(false);
-
 	const user = useUser();
 	const isStaff = useHasRole("STAFF");
 	const data = useLoaderData<typeof loader>();
 	const submitScoreFetcher = useFetcher<typeof action>();
 	const cancelFetcher = useFetcher<typeof action>();
 
-	const chatUsers = React.useMemo(() => {
-		return Object.fromEntries(
-			[...data.match.groupAlpha.members, ...data.match.groupBravo.members].map(
-				(m) => [m.id, m],
-			),
-		);
-	}, [data]);
-
-	const [_unseenMessages, setUnseenMessages] = React.useState(0);
-	const [chatVisible, setChatVisible] = React.useState(false);
-
-	const onNewMessage = React.useCallback(() => {
-		setUnseenMessages((msg) => msg + 1);
-	}, []);
-
-	const groupChatCode =
-		data.match.groupAlpha.chatCode ?? data.match.groupBravo.chatCode;
-
-	const chatRooms = React.useMemo(() => {
-		return [
-			data.match.chatCode
-				? { code: data.match.chatCode, label: "Match" }
-				: null,
-			groupChatCode ? { code: groupChatCode, label: "Group" } : null,
-		].filter(Boolean) as ChatProps["rooms"];
-	}, [data.match.chatCode, groupChatCode]);
-
-	const chatHidden = chatRooms.length === 0;
-
-	const [selectedTabKey, setSelectedTabKey] = React.useState<string>(
-		chatHidden ? "report" : "chat",
-	);
-
-	const ownWeaponsReported = data.rawReportedWeapons?.some(
-		(rw) => rw.userId === user?.id,
-	);
-
-	// revalidates: false when we don't want the user to lose the weapons
-	// they are reporting when the match gets suddenly locked
-	const chat = useChat({
-		rooms: chatRooms,
-		onNewMessage,
-		revalidates: ownWeaponsReported || !isReportingWeapons,
-	});
-
-	const onChatMount = React.useCallback(() => {
-		setChatVisible(true);
-	}, []);
-
-	const onChatUnmount = React.useCallback(() => {
-		setChatVisible(false);
-		setUnseenMessages(0);
-	}, []);
-
-	const unseenMessages = chatVisible ? 0 : _unseenMessages;
-
 	const showMid = !data.match.isLocked && (participatingInTheMatch || isStaff);
 
 	const poolCode = () => {
@@ -737,24 +670,12 @@ function BottomSection({
 
 	if (!isMounted) return null;
 
-	const chatElement = (
-		<Chat
-			chat={chat}
-			onMount={onChatMount}
-			onUnmount={onChatUnmount}
-			users={chatUsers}
-			rooms={chatRooms}
-			disabled={!groupChatCode} // no message sending by staff to match chat
-		/>
-	);
-
 	const mapListElement = (
 		<MapList
 			key={data.match.id}
 			canReportScore={canReportScore}
 			isResubmission={ownTeamReported}
 			fetcher={submitScoreFetcher}
-			setIsReportingWeapons={setIsReportingWeapons}
 		/>
 	);
 
@@ -829,7 +750,7 @@ function BottomSection({
 		<ScreenLegalityInfo ban={screenBanned} />
 	) : null;
 
-	if (!showMid && chatHidden) {
+	if (!showMid) {
 		return mapListElement;
 	}
 
@@ -845,32 +766,7 @@ function BottomSection({
 						{cancelMatchElement}
 					</div>
 				</div>
-
-				<div>
-					<SendouTabs
-						selectedKey={selectedTabKey}
-						onSelectionChange={(key) => setSelectedTabKey(key as string)}
-					>
-						<SendouTabList sticky>
-							{!chatHidden && (
-								<SendouTab id="chat" number={unseenMessages}>
-									{t("q:looking.columns.chat")}
-								</SendouTab>
-							)}
-							<SendouTab id="report">{t("q:match.tabs.reportScore")}</SendouTab>
-						</SendouTabList>
-						<SendouTabPanel id="chat">{chatElement}</SendouTabPanel>
-						<SendouTabPanel
-							id="report"
-							shouldForceMount
-							className={clsx({
-								hidden: selectedTabKey !== "report",
-							})}
-						>
-							{mapListElement}
-						</SendouTabPanel>
-					</SendouTabs>
-				</div>
+				{mapListElement}
 			</div>
 		);
 	}
@@ -892,9 +788,6 @@ function BottomSection({
 						{cancelMatchElement}
 					</div>
 				</div>
-				<div className={styles.chatContainer}>
-					{chatRooms.length > 0 ? chatElement : null}
-				</div>
 			</div>
 			{cancelFetcher.data?.error === "cant-cancel" ? (
 				<div className="text-xs text-warning font-semi-bold text-center">
@@ -960,12 +853,10 @@ function MapList({
 	canReportScore,
 	isResubmission,
 	fetcher,
-	setIsReportingWeapons,
 }: {
 	canReportScore: boolean;
 	isResubmission: boolean;
 	fetcher: FetcherWithComponents<any>;
-	setIsReportingWeapons: (val: boolean) => void;
 }) {
 	const { t } = useTranslation(["q"]);
 	const user = useUser();
@@ -1026,9 +917,7 @@ function MapList({
 								addRecentlyReportedWeapon={addRecentlyReportedWeapon}
 								onOwnWeaponSelected={(newReportedWeapon) => {
 									if (!newReportedWeapon) return;
-
-									setIsReportingWeapons(true);
-
+									// xxx: previously revalidation was suppressed during weapon reporting to avoid race conditions, needs new mechanism with global ChatProvider
 									setOwnWeaponsUsage((val) => {
 										const result = val.filter(
 											(reportedWeapon) =>
diff --git a/app/features/sendouq/loaders/q.looking.server.ts b/app/features/sendouq/loaders/q.looking.server.ts
index dbdbb2780..cba5c0b60 100644
--- a/app/features/sendouq/loaders/q.looking.server.ts
+++ b/app/features/sendouq/loaders/q.looking.server.ts
@@ -1,7 +1,10 @@
 import type { LoaderFunctionArgs } from "react-router";
 import { requireUser } from "~/features/auth/core/user.server";
+import { setMetadata } from "~/features/chat/ChatSystemMessage.server";
+import { SENDOUQ_MATCH_EXPIRY_MS } from "~/features/chat/chat-constants";
 import * as SQGroupRepository from "~/features/sendouq/SQGroupRepository.server";
 import { cachedStreams } from "~/features/sendouq-streams/core/streams.server";
+import * as UserRepository from "~/features/user-page/UserRepository.server";
 import { groupExpiryStatus } from "../core/groups";
 import { SendouQ } from "../core/SendouQ.server";
 import * as PrivateUserNoteRepository from "../PrivateUserNoteRepository.server";
@@ -32,6 +35,22 @@ export const loader = async ({ request }: LoaderFunctionArgs) => {
 		});
 	}
 
+	if (ownGroup?.chatCode) {
+		const memberIds = ownGroup.members.map((m: { id: number }) => m.id);
+		const chatUsers = await UserRepository.findChatUsersByUserIds(memberIds);
+
+		setMetadata({
+			chatCode: ownGroup.chatCode,
+			header: "SQ Group",
+			// xxx: better subtitle
+			subtitle: "Looking for match",
+			url: "/q/looking",
+			participantUserIds: memberIds,
+			chatUsers,
+			expiresAt: Date.now() + SENDOUQ_MATCH_EXPIRY_MS,
+		});
+	}
+
 	return {
 		groups:
 			ownGroup && groupExpiryStatus(ownGroup.latestActionAt) === "EXPIRED"
diff --git a/app/features/sendouq/routes/q.looking.tsx b/app/features/sendouq/routes/q.looking.tsx
index 999abc366..b4838d694 100644
--- a/app/features/sendouq/routes/q.looking.tsx
+++ b/app/features/sendouq/routes/q.looking.tsx
@@ -1,5 +1,5 @@
 import clsx from "clsx";
-import * as React from "react";
+import type * as React from "react";
 import { Flipper } from "react-flip-toolkit";
 import { useTranslation } from "react-i18next";
 import type { MetaFunction } from "react-router";
@@ -17,8 +17,6 @@ import { Main } from "~/components/Main";
 import { Placeholder } from "~/components/Placeholder";
 import { SubmitButton } from "~/components/SubmitButton";
 import { useUser } from "~/features/auth/core/user";
-import { useChat } from "~/features/chat/chat-hooks";
-import { Chat } from "~/features/chat/components/Chat";
 import { useAutoRefresh } from "~/hooks/useAutoRefresh";
 import { useIsMounted } from "~/hooks/useIsMounted";
 import { useTimeFormat } from "~/hooks/useTimeFormat";
@@ -211,52 +209,14 @@ function Groups() {
 	const data = useLoaderData<typeof loader>();
 	const isMounted = useIsMounted();
 
-	const [_unseenMessages, setUnseenMessages] = React.useState(0);
-	const [chatVisible, setChatVisible] = React.useState(false);
 	const { width } = useWindowSize();
 
-	const chatUsers = React.useMemo(() => {
-		return Object.fromEntries(
-			(data.ownGroup?.members ?? []).map((m) => [m.id, m]),
-		);
-	}, [data]);
-
-	const rooms = React.useMemo(() => {
-		return data.ownGroup?.chatCode
-			? [
-					{
-						code: data.ownGroup.chatCode,
-						label: "Group",
-					},
-				]
-			: [];
-	}, [data.ownGroup?.chatCode]);
-
-	const onNewMessage = React.useCallback(() => {
-		setUnseenMessages((msg) => msg + 1);
-	}, []);
-
-	const chat = useChat({ rooms, onNewMessage });
-
-	const onChatMount = React.useCallback(() => {
-		setChatVisible(true);
-	}, []);
-
-	const onChatUnmount = React.useCallback(() => {
-		setChatVisible(false);
-		setUnseenMessages(0);
-	}, []);
-
-	const unseenMessages = chatVisible ? 0 : _unseenMessages;
-
 	if (!isMounted) return null;
 
 	const isMobile = width < 750;
 	const isFullGroup =
 		data.ownGroup && data.ownGroup.members.length === FULL_GROUP_SIZE;
 
-	const showChat = data.ownGroup && data.ownGroup.members.length > 1;
-
 	const invitedGroupsDesktop = (
 		<div className="stack sm">
 			<ColumnHeader>
@@ -284,32 +244,9 @@ function Groups() {
 		</div>
 	);
 
-	const chatElement = (
-		<div>
-			{showChat ? (
-				<>
-					<Chat
-						rooms={rooms}
-						users={chatUsers}
-						className="w-full"
-						messagesContainerClassName={styles.messagesContainer}
-						chat={chat}
-						onMount={onChatMount}
-						onUnmount={onChatUnmount}
-					/>
-					{!isMobile ? (
-						<div className="mt-4">{invitedGroupsDesktop}</div>
-					) : null}
-				</>
-			) : null}
-		</div>
-	);
-
 	const ownGroupElement = data.ownGroup ? (
 		<div className="stack sm">
-			{!showChat && (
-				<ColumnHeader>{t("q:looking.columns.myGroup")}</ColumnHeader>
-			)}
+			<ColumnHeader>{t("q:looking.columns.myGroup")}</ColumnHeader>
 			<GroupCard group={data.ownGroup} showNote ownGroup={data.ownGroup} />
 			{data.ownGroup.inviteCode ? (
 				<MemberAdder
@@ -350,24 +287,8 @@ function Groups() {
 			>
 				{!isMobile ? (
 					<div>
-						<SendouTabs>
-							<SendouTabList>
-								{data.ownGroup && (
-									<SendouTab id="own" number={data.ownGroup.members.length}>
-										{t("q:looking.columns.myGroup")}
-									</SendouTab>
-								)}
-								{showChat && (
-									<SendouTab id="chat" number={unseenMessages}>
-										{t("q:looking.columns.chat")}
-									</SendouTab>
-								)}
-							</SendouTabList>
-							<SendouTabPanel id="own">{ownGroupElement}</SendouTabPanel>
-							{data.ownGroup?.chatCode && (
-								<SendouTabPanel id="chat">{chatElement}</SendouTabPanel>
-							)}
-						</SendouTabs>
+						{ownGroupElement}
+						{invitedGroupsDesktop}
 					</div>
 				) : null}
 				<div className={styles.innerContainer}>
@@ -393,11 +314,6 @@ function Groups() {
 									{t("q:looking.columns.myGroup")}
 								</SendouTab>
 							)}
-							{isMobile && showChat && (
-								<SendouTab id="chat" number={unseenMessages}>
-									{t("q:looking.columns.chat")}
-								</SendouTab>
-							)}
 						</SendouTabList>
 						<SendouTabPanel id="groups">
 							<div className="stack sm">
@@ -457,7 +373,6 @@ function Groups() {
 							</div>
 						</SendouTabPanel>
 						<SendouTabPanel id="own">{ownGroupElement}</SendouTabPanel>
-						<SendouTabPanel id="chat">{chatElement}</SendouTabPanel>
 					</SendouTabs>
 				</div>
 				{!isMobile ? (
diff --git a/app/features/tournament-bracket/components/StartedMatch.tsx b/app/features/tournament-bracket/components/StartedMatch.tsx
index e11103713..f4c4c2062 100644
--- a/app/features/tournament-bracket/components/StartedMatch.tsx
+++ b/app/features/tournament-bracket/components/StartedMatch.tsx
@@ -18,8 +18,6 @@ import { Image } from "~/components/Image";
 import { Label } from "~/components/Label";
 import { SubmitButton } from "~/components/SubmitButton";
 import { useUser } from "~/features/auth/core/user";
-import { useChat } from "~/features/chat/chat-hooks";
-import { Chat } from "~/features/chat/components/Chat";
 import { useTournament } from "~/features/tournament/routes/to.$id";
 import { resolveLeagueRoundStartDate } from "~/features/tournament/tournament-utils";
 import { useIsMounted } from "~/hooks/useIsMounted";
@@ -36,7 +34,6 @@ import {
 	specialWeaponImageUrl,
 	stageImageUrl,
 } from "~/utils/urls";
-import tournamentStyles from "../../tournament/tournament.module.css";
 import type { Bracket } from "../core/Bracket";
 import * as Deadline from "../core/Deadline";
 import * as PickBan from "../core/PickBan";
@@ -649,84 +646,12 @@ function StartedMatchTabs({
 	const user = useUser();
 	const tournament = useTournament();
 	const data = useLoaderData<TournamentMatchLoaderData>();
-	const [_unseenMessages, setUnseenMessages] = React.useState(0);
-	const [chatVisible, setChatVisible] = React.useState(false);
 	const [selectedTabKey, setSelectedTabKey] = useSearchParamState({
 		defaultValue: "rosters",
 		name: "tab",
-		revive: (value) =>
-			["chat", "rosters", "actions"].includes(value) ? value : null,
+		revive: (value) => (["rosters", "actions"].includes(value) ? value : null),
 	});
 
-	// TODO: resolve this on server (notice it is copy-pasted now)
-	const chatUsers = React.useMemo(() => {
-		return Object.fromEntries(
-			[
-				...data.match.players.map((p) => ({ ...p, title: undefined })),
-				...(tournament.ctx.organization?.members ?? []).map((m) => ({
-					...m,
-					title: m.role === "STREAMER" ? "Cast" : "TO",
-				})),
-				...tournament.ctx.staff.map((s) => ({
-					...s,
-					title: s.role === "STREAMER" ? "Cast" : "TO",
-				})),
-				{
-					...tournament.ctx.author,
-					title: "TO",
-				},
-			].map((p) => [p.id, p]),
-		);
-	}, [data, tournament]);
-
-	const showChat = (() => {
-		if (!data.match.chatCode) return false;
-		if (tournament.ctx.isFinalized && !tournament.isOrganizer(user)) {
-			return false;
-		}
-		const oneMonthAgo = new Date();
-		oneMonthAgo.setMonth(oneMonthAgo.getMonth() - 1);
-		if (
-			tournament.ctx.startTime < oneMonthAgo &&
-			!tournament.isLeagueDivision
-		) {
-			return false;
-		}
-
-		return (
-			data.match.players.some((p) => p.id === user?.id) ||
-			tournament.isOrganizerOrStreamer(user)
-		);
-	})();
-
-	const rooms = React.useMemo(() => {
-		return showChat && data.match.chatCode
-			? [
-					{
-						code: data.match.chatCode,
-						label: "Match",
-					},
-				]
-			: [];
-	}, [showChat, data.match.chatCode]);
-
-	const onNewMessage = React.useCallback(() => {
-		setUnseenMessages((msg) => msg + 1);
-	}, []);
-
-	const chat = useChat({ rooms, onNewMessage });
-
-	const onChatMount = React.useCallback(() => {
-		setChatVisible(true);
-	}, []);
-
-	const onChatUnmount = React.useCallback(() => {
-		setChatVisible(false);
-		setUnseenMessages(0);
-	}, []);
-
-	const unseenMessages = chatVisible ? 0 : _unseenMessages;
-
 	const currentPosition = scores[0] + scores[1];
 
 	const matchActionsKey = () =>
@@ -756,33 +681,12 @@ function StartedMatchTabs({
 				className={styles.matchTabs}
 			>
 				<SendouTabList>
-					{showChat && (
-						<SendouTab id="chat" number={unseenMessages} data-testid="chat-tab">
-							Chat
-						</SendouTab>
-					)}
 					<SendouTab id="rosters">Rosters</SendouTab>
 					<SendouTab id="actions" data-testid="actions-tab">
 						{presentational ? "Score" : "Actions"}
 					</SendouTab>
 				</SendouTabList>
 
-				<SendouTabPanel id="chat">
-					<Chat
-						rooms={rooms}
-						users={chatUsers}
-						className={tournamentStyles.chatContainer}
-						messagesContainerClassName={clsx(
-							tournamentStyles.chatMessagesContainer,
-							"pt-0",
-						)}
-						chat={chat}
-						onMount={onChatMount}
-						onUnmount={onChatUnmount}
-						missingUserName="???"
-					/>
-				</SendouTabPanel>
-
 				<SendouTabPanel id="rosters">
 					<MatchRosters teams={[teams[0].id, teams[1].id]} />
 				</SendouTabPanel>
diff --git a/app/features/tournament-bracket/loaders/to.$id.matches.$mid.server.ts b/app/features/tournament-bracket/loaders/to.$id.matches.$mid.server.ts
index 2b7349a56..7fe5ddd70 100644
--- a/app/features/tournament-bracket/loaders/to.$id.matches.$mid.server.ts
+++ b/app/features/tournament-bracket/loaders/to.$id.matches.$mid.server.ts
@@ -1,5 +1,7 @@
 import cachified from "@epic-web/cachified";
 import type { LoaderFunctionArgs } from "react-router";
+import { setMetadata } from "~/features/chat/ChatSystemMessage.server";
+import { TOURNAMENT_MATCH_EXPIRY_MS } from "~/features/chat/chat-constants";
 import * as TournamentRepository from "~/features/tournament/TournamentRepository.server";
 import * as TournamentTeamRepository from "~/features/tournament/TournamentTeamRepository.server";
 import * as UserRepository from "~/features/user-page/UserRepository.server";
@@ -92,6 +94,24 @@ export const loader = async ({ params }: LoaderFunctionArgs) => {
 			})
 		: false;
 
+	// xxx: also need to check match is currently ongoing
+	if (match.chatCode) {
+		const playerIds = match.players.map((p) => p.id);
+		// xxx: should this be resolved inside setMetadata?
+		const chatUsers = await UserRepository.findChatUsersByUserIds(playerIds);
+
+		// xxx: module.function format
+		setMetadata({
+			chatCode: match.chatCode,
+			header: "Tournament Match",
+			subtitle: `Match #${matchId}`,
+			url: `/to/${tournamentId}/matches/${matchId}`,
+			participantUserIds: playerIds,
+			chatUsers,
+			expiresAt: Date.now() + TOURNAMENT_MATCH_EXPIRY_MS,
+		});
+	}
+
 	return {
 		match,
 		results,
diff --git a/app/features/tournament-bracket/routes/to.$id.brackets.tsx b/app/features/tournament-bracket/routes/to.$id.brackets.tsx
index ed6a53b41..f603591a7 100644
--- a/app/features/tournament-bracket/routes/to.$id.brackets.tsx
+++ b/app/features/tournament-bracket/routes/to.$id.brackets.tsx
@@ -16,9 +16,7 @@ import {
 	SendouTabs,
 } from "~/components/elements/Tabs";
 import { useUser } from "~/features/auth/core/user";
-import { useWebsocketRevalidation } from "~/features/chat/chat-hooks";
 import { TOURNAMENT } from "~/features/tournament/tournament-constants";
-import { tournamentWebsocketRoom } from "~/features/tournament-bracket/tournament-bracket-utils";
 import { useIsMounted } from "~/hooks/useIsMounted";
 import { useSearchParamState } from "~/hooks/useSearchParamState";
 import { useTimeFormat } from "~/hooks/useTimeFormat";
@@ -49,11 +47,6 @@ export default function TournamentBracketsPage() {
 	const isMounted = useIsMounted();
 	const ctx = useOutletContext();
 
-	useWebsocketRevalidation({
-		room: tournamentWebsocketRoom(tournament.ctx.id),
-		connected: !tournament.ctx.isFinalized,
-	});
-
 	const defaultBracketIdx = () => {
 		if (
 			tournament.brackets.length === 1 ||
diff --git a/app/features/tournament-bracket/routes/to.$id.matches.$mid.tsx b/app/features/tournament-bracket/routes/to.$id.matches.$mid.tsx
index 9968c14d2..9dc35c506 100644
--- a/app/features/tournament-bracket/routes/to.$id.matches.$mid.tsx
+++ b/app/features/tournament-bracket/routes/to.$id.matches.$mid.tsx
@@ -6,8 +6,6 @@ import { LinkButton } from "~/components/elements/Button";
 import { containerClassName } from "~/components/Main";
 import { SubmitButton } from "~/components/SubmitButton";
 import { useUser } from "~/features/auth/core/user";
-import { useWebsocketRevalidation } from "~/features/chat/chat-hooks";
-import { ConnectedChat } from "~/features/chat/components/Chat";
 import { useTournament } from "~/features/tournament/routes/to.$id";
 import { TOURNAMENT } from "~/features/tournament/tournament-constants";
 import { useSearchParamState } from "~/hooks/useSearchParamState";
@@ -22,13 +20,9 @@ import { OrganizerMatchMapListDialog } from "../components/OrganizerMatchMapList
 import { StartedMatch } from "../components/StartedMatch";
 import { getRounds } from "../core/rounds";
 import { loader } from "../loaders/to.$id.matches.$mid.server";
-import {
-	groupNumberToLetters,
-	tournamentMatchWebsocketRoom,
-} from "../tournament-bracket-utils";
+import { groupNumberToLetters } from "../tournament-bracket-utils";
 export { action, loader };
 
-import tournamentStyles from "../../tournament/tournament.module.css";
 import styles from "../tournament-bracket.module.css";
 
 export default function TournamentMatchPage() {
@@ -38,10 +32,7 @@ export default function TournamentMatchPage() {
 	const tournament = useTournament();
 	const data = useLoaderData<typeof loader>();
 
-	useWebsocketRevalidation({
-		room: tournamentMatchWebsocketRoom(data.match.id),
-		connected: !tournament.ctx.isFinalized,
-	});
+	// xxx: ensure tournament match chat can also be used before the match starts
 
 	React.useEffect(() => {
 		if (visibility !== "visible" || tournament.ctx.isFinalized) return;
@@ -63,20 +54,6 @@ export default function TournamentMatchPage() {
 		return type !== "EDIT";
 	};
 
-	const showChatPeek = () => {
-		if (!showRosterPeek()) return false;
-
-		if (tournament.isOrganizerOrStreamer(user)) return true;
-
-		const teamId = tournament.teamMemberOfByUser(user)?.id;
-		if (!teamId) return false;
-
-		if (data.match.opponentOne?.id === teamId) return true;
-		if (data.match.opponentTwo?.id === teamId) return true;
-
-		return false;
-	};
-
 	return (
 		<div className={clsx("stack lg", containerClassName("normal"))}>
 			<div className="flex horizontal justify-between items-center">
@@ -130,61 +107,11 @@ export default function TournamentMatchPage() {
 						teams={[data.match.opponentOne?.id, data.match.opponentTwo?.id]}
 					/>
 				) : null}
-				{showChatPeek() ? <BeforeMatchChat /> : null}
 			</div>
 		</div>
 	);
 }
 
-function BeforeMatchChat() {
-	const tournament = useTournament();
-	const data = useLoaderData<typeof loader>();
-
-	// TODO: resolve this on server (notice it is copy-pasted now)
-	const chatUsers = React.useMemo(() => {
-		return Object.fromEntries(
-			[
-				...data.match.players.map((p) => ({ ...p, title: undefined })),
-				...(tournament.ctx.organization?.members ?? []).map((m) => ({
-					...m,
-					title: m.role === "STREAMER" ? "Cast" : "TO",
-				})),
-				...tournament.ctx.staff.map((s) => ({
-					...s,
-					title: s.role === "STREAMER" ? "Cast" : "TO",
-				})),
-				{
-					...tournament.ctx.author,
-					title: "TO",
-				},
-			].map((p) => [p.id, p]),
-		);
-	}, [data, tournament]);
-
-	const rooms = React.useMemo(() => {
-		return data.match.chatCode
-			? [
-					{
-						code: data.match.chatCode,
-						label: "Match",
-					},
-				]
-			: [];
-	}, [data.match.chatCode]);
-
-	return (
-		<div className={clsx(tournamentStyles.actionSection, "mt-6")}>
-			<ConnectedChat
-				rooms={rooms}
-				users={chatUsers}
-				className={tournamentStyles.chatContainer}
-				messagesContainerClassName={tournamentStyles.chatMessagesContainer}
-				missingUserName="???"
-			/>
-		</div>
-	);
-}
-
 function MatchHeader() {
 	const tournament = useTournament();
 	const data = useLoaderData<typeof loader>();
diff --git a/app/root.tsx b/app/root.tsx
index a2cf41e4b..8975fc73e 100644
--- a/app/root.tsx
+++ b/app/root.tsx
@@ -41,6 +41,7 @@ import { Layout } from "./components/layout";
 import { Ramp } from "./components/ramp/Ramp";
 import { getUser } from "./features/auth/core/user.server";
 import { userMiddleware } from "./features/auth/core/user-middleware.server";
+import { ChatProvider } from "./features/chat/ChatProvider";
 import { getSidenavSession } from "./features/layout/core/sidenav-session.server";
 import { sessionIdMiddleware } from "./features/session-id/session-id-middleware.server";
 import {
@@ -193,7 +194,9 @@ function Document({
 						<I18nProvider locale={i18n.language}>
 							<SendouToastRegion />
 							<MyRamp data={data} />
-							<Layout data={data}>{children}</Layout>
+							<ChatProvider user={data?.user}>
+								<Layout data={data}>{children}</Layout>
+							</ChatProvider>
 						</I18nProvider>
 					</RouterProvider>
 				</React.StrictMode>
diff --git a/app/routes.ts b/app/routes.ts
index 344e559c9..789f0a2f9 100644
--- a/app/routes.ts
+++ b/app/routes.ts
@@ -236,6 +236,7 @@ export default [
 	]),
 
 	route("/admin", "features/admin/routes/admin.tsx"),
+	route("/api/chat-users", "features/chat/routes/api.chat-users.ts"),
 	route("/api", "features/api/routes/api.tsx"),
 
 	...prefix("/a", [
diff --git a/locales/da/common.json b/locales/da/common.json
index d1209ee39..6cd9706fd 100644
--- a/locales/da/common.json
+++ b/locales/da/common.json
@@ -309,6 +309,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/de/common.json b/locales/de/common.json
index 50aff322a..ec6b8bef8 100644
--- a/locales/de/common.json
+++ b/locales/de/common.json
@@ -309,6 +309,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/en/common.json b/locales/en/common.json
index 3e950cfc0..cbf7e12f0 100644
--- a/locales/en/common.json
+++ b/locales/en/common.json
@@ -309,6 +309,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} confirmed canceling the match. Match is now locked",
 	"chat.systemMsg.userLeft": "{{name}} left the group",
 	"chat.newMessages": "New messages",
+	"chat.sidebar.title": "Chat",
+	"chat.sidebar.noActiveChats": "No active chats",
 	"fc.title": "Friend code",
 	"fc.helpText": "Used to verify your identity for sendou.ink staff, tournament organizers, and SendouQ opponents. You must always play only on this one account.",
 	"fc.whereToFind": "Find your friend code on your Nintendo Switch (2)",
diff --git a/locales/es-ES/common.json b/locales/es-ES/common.json
index 6cabc6a4b..6c9384fc6 100644
--- a/locales/es-ES/common.json
+++ b/locales/es-ES/common.json
@@ -311,6 +311,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} confirmó cancelar la partida. La partida está cerrada",
 	"chat.systemMsg.userLeft": "{{name}} abandonó el grupo",
 	"chat.newMessages": "Nuevos mensajes",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "Clave de amigo",
 	"fc.helpText": "Se usa para verificar tu identidad ante el staff de sendou.ink, organizadores de torneos y oponentes de SendouQ. Debes jugar siempre con esta misma cuenta.",
 	"fc.whereToFind": "Encuentra tu clave de amigo en tu Nintendo Switch (2)",
@@ -381,6 +383,5 @@
 	"header.parameter": "",
 	"weaponArt.title": "",
 	"tier.tentative": "Tier {{tierName}} provisional",
-	"tier.confirmed": "Tier {{tierName}} confirmado",
-	"header.login": "Acceso"
+	"tier.confirmed": "Tier {{tierName}} confirmado"
 }
diff --git a/locales/es-ES/forms.json b/locales/es-ES/forms.json
index 9474a63fa..648c910c1 100644
--- a/locales/es-ES/forms.json
+++ b/locales/es-ES/forms.json
@@ -220,6 +220,5 @@
 	"errors.alreadyFriends": "",
 	"errors.friendRequestExists": "",
 	"labels.type": "",
-	"labels.visibility": "",
-	"labels.vodType": "Tipo"
+	"labels.visibility": ""
 }
diff --git a/locales/es-ES/front.json b/locales/es-ES/front.json
index a466d1d6e..4d10a40e1 100644
--- a/locales/es-ES/front.json
+++ b/locales/es-ES/front.json
@@ -43,9 +43,5 @@
 	"rotations.nextLabel": "",
 	"rotations.credit": "",
 	"rotations.filter.all": "",
-	"rotations.remaining": "",
-	"showcase.tabs.signedUp": "Inscrito",
-	"showcase.tabs.organizer": "Organizando",
-	"showcase.tabs.discover": "Descubrir",
-	"showcase.viewAll": "Ver todos los torneos"
+	"rotations.remaining": ""
 }
diff --git a/locales/es-ES/q.json b/locales/es-ES/q.json
index 5ab7d2985..920207573 100644
--- a/locales/es-ES/q.json
+++ b/locales/es-ES/q.json
@@ -163,12 +163,5 @@
 	"tiers.info.p3": "Cada rango también tiene un nivel plus (ver BRONCE+ de ejemplo). Significa que estás en el 50% superior de ese rango.",
 	"streams.noStreams": "No hay streams de partidos recientes",
 	"streams.ownStreamInfo": "¿Falta tu stream? Asegura que tu cuenta de Twitch esté conectada y que tu juego es Splatoon 3.",
-	"streams.ownStreamInfo.linkText": "Ver el FAQ para más información como sobre conectar tu cuenta de Twitch.",
-	"front.join.joinWithTrustAction": "Unirte y confiar de {{inviterName}}",
-	"front.join.joinWithTrustAction.explanation": "Confiar de un usuario le permite agregarte a un grupo sin enviar invitación en el futuro",
-	"settings.trusted.header": "Usuarios de confianza",
-	"settings.trusted.confirm": "¿Quitar {{name}} de los usuarios de confianza?",
-	"settings.trusted.trustedExplanation": "Los usuarios de confianza pueden añadirte directamente a grupos y equipos de torneos. Si te eliminan de esta lista, en el futuro tendrás que unirte a través de un enlace que ellos compartan.",
-	"settings.trusted.noTrustedExplanation": "Actualmente no confías en ningún usuario. Puedes confiar en usuarios cuando te unes a su grupo SendouQ o equipo de torneo a través de un enlace. Los usuarios de confianza pueden agregarte a grupos y equipos de torneos directamente.",
-	"settings.trusted.teamExplanation": "Además de los usuarios anteriores, los miembros de tu equipo <2>{{name}}</2> pueden agregarte directamente."
+	"streams.ownStreamInfo.linkText": "Ver el FAQ para más información como sobre conectar tu cuenta de Twitch."
 }
diff --git a/locales/es-ES/tournament.json b/locales/es-ES/tournament.json
index dc9a6390b..af5735621 100644
--- a/locales/es-ES/tournament.json
+++ b/locales/es-ES/tournament.json
@@ -151,7 +151,5 @@
 	"progression.error.NEGATIVE_PROGRESSION": "La progresión negativa solo es posible en eliminación doble",
 	"progression.error.NO_SE_SOURCE": "La eliminación simple no es un cuadro de origen válido",
 	"progression.error.NO_DE_POSITIVE": "La eliminación doble no es válida para progresión positiva",
-	"progression.error.SWISS_EARLY_ADVANCE_NO_DESTINATION": "El cuadro suizo con avance/eliminación anticipada debe llevar a otro cuadro",
-	"pre.roster.addTrusted.header": "Agregar personas con quienes has jugado",
-	"join.giveTrust": "¿Confiar a {{name}} para añadirte a torneos futuros?"
+	"progression.error.SWISS_EARLY_ADVANCE_NO_DESTINATION": "El cuadro suizo con avance/eliminación anticipada debe llevar a otro cuadro"
 }
diff --git a/locales/es-ES/user.json b/locales/es-ES/user.json
index bdba3f43e..63515af21 100644
--- a/locales/es-ES/user.json
+++ b/locales/es-ES/user.json
@@ -197,29 +197,5 @@
 	"mutualFriends": "",
 	"mutualFriends.count_one": "",
 	"mutualFriends.count_many": "",
-	"mutualFriends.count_other": "",
-	"country": "País",
-	"bio": "Biografía",
-	"pronoun": "Pronombres",
-	"pronounsInfo": "¡Este ajuste es opcional! Tus pronombres se mostrarán en tu perfil, plantillas de torneos, grupos de SendouQ y canales de texto.",
-	"weaponPool": "Grupo de armas",
-	"favoriteBadges": "Insignias favoritas",
-	"battlefy": "Nombre de cuenta de Battlefy",
-	"forms.newProfileEnabled": "Nueva página de perfil",
-	"forms.newProfileEnabled.info": "Activa la nueva página de perfil basada en widgets. Actualmente disponible como acceso anticipado para mecenas.",
-	"forms.showDiscordUniqueName": "Mostrar usuario de Discord",
-	"forms.showDiscordUniqueName.info": "¿Mostrar tu nombre de Discord ({{discordUniqueName}}) publicamente?",
-	"forms.commissionsOpen": "Comisiones abiertas",
-	"forms.commissionsOpen.info": "Las comisiones se cierran automáticamente y deben volver a activarse al cabo de un mes para evitar que los anuncios queden obsoletos.",
-	"forms.commissionText": "Info de comisiones",
-	"forms.commissionText.info": "Precio, espacios abiertos, o cualquier otra información sobre tus comisiones.",
-	"forms.customName.info": "Si se deja en blanco, se utilizará tu nombre de Discord: \"{{discordName}}\"",
-	"forms.country.search.placeholder": "Buscar países",
-	"forms.favoriteBadges.nonSupporter": "Hazte mecenas para elegir qué insignias aparecen en la primera página y en qué orden",
-	"forms.errors.invalidCustomUrl.numbers": "Enlace personalizado no puede ser solo numeros",
-	"forms.errors.invalidCustomUrl.strangeCharacter": "Enlace personalizado no puede contener caracteres especiales",
-	"forms.errors.invalidCustomUrl.duplicate": "Alguien ya tiene ese enlace personalizado",
-	"forms.errors.invalidSens": "Motion sens can't be set if R-stick sens isn't",
-	"forms.info.customUrl": "Para los mecenas (nivel Supporter o superior) hay un enlace acortado disponible. Ej. en lugar de sendou.ink/u/sendou, se puede usar snd.ink/sendou.",
-	"forms.info.battlefy": "El nombre de cuenta de Battlefy se usa para el posicionamiento (seeding) y la verificación en algunos torneos"
+	"mutualFriends.count_other": ""
 }
diff --git a/locales/es-US/common.json b/locales/es-US/common.json
index 21b89f1e7..06829f358 100644
--- a/locales/es-US/common.json
+++ b/locales/es-US/common.json
@@ -311,6 +311,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} confirmó cancelar el partido. El partido está cerrado",
 	"chat.systemMsg.userLeft": "{{name}} se salió del grupo",
 	"chat.newMessages": "Nuevo mensajes",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "Clave de amigo",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/fr-CA/common.json b/locales/fr-CA/common.json
index ad571a970..0203a26e2 100644
--- a/locales/fr-CA/common.json
+++ b/locales/fr-CA/common.json
@@ -311,6 +311,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/fr-EU/common.json b/locales/fr-EU/common.json
index 8e19be9f2..09443ccb3 100644
--- a/locales/fr-EU/common.json
+++ b/locales/fr-EU/common.json
@@ -311,6 +311,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} a confirmé l'anunulation du match. Le match est maintenant vérrouillé",
 	"chat.systemMsg.userLeft": "{{name}} a quitté le groupe",
 	"chat.newMessages": "Nouveau message",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "Code ami ",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/he/common.json b/locales/he/common.json
index f8a30e5ee..ea695e235 100644
--- a/locales/he/common.json
+++ b/locales/he/common.json
@@ -310,6 +310,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/it/common.json b/locales/it/common.json
index b3823bcfa..7a842d52b 100644
--- a/locales/it/common.json
+++ b/locales/it/common.json
@@ -311,6 +311,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} ha confermato la cancellazione del match. Il match è ora bloccato",
 	"chat.systemMsg.userLeft": "{{name}} ha lasciato il gruppo",
 	"chat.newMessages": "Nuovi messaggi",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "Codice amico",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/ja/common.json b/locales/ja/common.json
index 678048298..57e041db0 100644
--- a/locales/ja/common.json
+++ b/locales/ja/common.json
@@ -305,6 +305,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} が試合キャンセルを承認しました。試合がロックされました。",
 	"chat.systemMsg.userLeft": "{{name}} がグループから出ました",
 	"chat.newMessages": "新着メッセージ",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "フレンドコード",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/ko/common.json b/locales/ko/common.json
index 36c5f0a16..ab6705f45 100644
--- a/locales/ko/common.json
+++ b/locales/ko/common.json
@@ -305,6 +305,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/nl/common.json b/locales/nl/common.json
index 1850d55d8..9f6c22618 100644
--- a/locales/nl/common.json
+++ b/locales/nl/common.json
@@ -309,6 +309,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/pl/common.json b/locales/pl/common.json
index d1d0f90fb..70b7649ef 100644
--- a/locales/pl/common.json
+++ b/locales/pl/common.json
@@ -312,6 +312,8 @@
 	"chat.systemMsg.cancelConfirmed": "",
 	"chat.systemMsg.userLeft": "",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/pt-BR/common.json b/locales/pt-BR/common.json
index 982986e18..ca1d6c6a8 100644
--- a/locales/pt-BR/common.json
+++ b/locales/pt-BR/common.json
@@ -311,6 +311,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} confirmou o cancelamento da partida. A partida foi trancada",
 	"chat.systemMsg.userLeft": "{{name}} deixou o grupo",
 	"chat.newMessages": "",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "Código de amigo",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/ru/common.json b/locales/ru/common.json
index 24bc5560f..c4264a7a2 100644
--- a/locales/ru/common.json
+++ b/locales/ru/common.json
@@ -312,6 +312,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} подтвердил отмену матча. Матч теперь закрыт",
 	"chat.systemMsg.userLeft": "{{name}} покинул группу",
 	"chat.newMessages": "Новые сообщения",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "Код друга",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/locales/zh/common.json b/locales/zh/common.json
index 4e927110f..8683011dc 100644
--- a/locales/zh/common.json
+++ b/locales/zh/common.json
@@ -305,6 +305,8 @@
 	"chat.systemMsg.cancelConfirmed": "{{name}} 确认取消对战，本次对战已锁定",
 	"chat.systemMsg.userLeft": "{{name}} 离开了小队",
 	"chat.newMessages": "新消息",
+	"chat.sidebar.title": "",
+	"chat.sidebar.noActiveChats": "",
 	"fc.title": "好友码",
 	"fc.helpText": "",
 	"fc.whereToFind": "",
diff --git a/migrations/119-custom-theme.js b/migrations/120-custom-theme.js
similarity index 100%
rename from migrations/119-custom-theme.js
rename to migrations/120-custom-theme.js
diff --git a/migrations/120-friends-system.js b/migrations/121-friends-system.js
similarity index 100%
rename from migrations/120-friends-system.js
rename to migrations/121-friends-system.js
diff --git a/migrations/121-saved-tournament.js b/migrations/122-saved-tournament.js
similarity index 100%
rename from migrations/121-saved-tournament.js
rename to migrations/122-saved-tournament.js
diff --git a/migrations/122-splatoon-rotation.js b/migrations/123-splatoon-rotation.js
similarity index 100%
rename from migrations/122-splatoon-rotation.js
rename to migrations/123-splatoon-rotation.js