fix: show board settings in dashboard header

perf: persist widget data across reloads

.oxlintrc.json

@@ -30,6 +30,26 @@
   "options": {
     "reportUnusedDisableDirectives": "off"
   },
+  "overrides": [
+    {
+      "files": ["apps/nextjs/src/**/*.ts", "apps/nextjs/src/**/*.tsx"],
+      "excludeFiles": ["**/*.spec.ts", "**/*.spec.tsx"],
+      "rules": {
+        "eslint/no-restricted-imports": [
+          "error",
+          {
+            "paths": [
+              {
+                "name": "@homarr/widgets",
+                "allowTypeImports": true,
+                "message": "Import a narrow @homarr/widgets export to preserve widget lazy loading."
+              }
+            ]
+          }
+        ]
+      }
+    }
+  ],
   "ignorePatterns": [
     "**/*.config.js",
     "**/*.config.mjs",

apps/nextjs/package.json

@@ -76,6 +76,7 @@
     "@tanstack/react-query": "catalog:",
     "@tanstack/react-query-devtools": "catalog:",
     "@tanstack/react-query-next-experimental": "catalog:",
+    "@tanstack/react-query-persist-client": "catalog:",
     "@trpc/client": "catalog:",
     "@trpc/next": "catalog:",
     "@trpc/react-query": "catalog:",

apps/nextjs/src/app/[locale]/_client-providers/query-persistence.spec.ts

@@ -0,0 +1,350 @@
+import { dehydrate, QueryClient } from "@tanstack/react-query";
+import type { PersistedClient } from "@tanstack/react-query-persist-client";
+import { persistQueryClientRestore } from "@tanstack/react-query-persist-client";
+import { parse, stringify } from "superjson";
+import { afterEach, describe, expect, test, vi } from "vitest";
+
+import {
+  createSessionQueryPersister,
+  getQueryPersistenceStorageKey,
+  queryPersistenceBuster,
+  queryPersistenceMaxDataBytes,
+  shouldPersistDashboardQuery,
+} from "./query-persistence";
+
+const createSuccessfulQuery = (queryKey: readonly unknown[], data: unknown, updatedAt = Date.now()) => {
+  const queryClient = new QueryClient();
+  queryClient.setQueryData(queryKey, data, { updatedAt });
+  const query = queryClient.getQueryCache().find({ queryKey });
+  if (!query) throw new Error("Expected query to be present");
+  return { query, queryClient };
+};
+
+const createMemoryStorage = (): Storage => {
+  const values = new Map<string, string>();
+  return {
+    get length() {
+      return values.size;
+    },
+    clear: () => values.clear(),
+    getItem: (key) => values.get(key) ?? null,
+    key: (index) => Array.from(values.keys())[index] ?? null,
+    removeItem: (key) => values.delete(key),
+    setItem: (key, value) => values.set(key, value),
+  };
+};
+
+afterEach(() => {
+  vi.useRealTimers();
+  vi.restoreAllMocks();
+  window.sessionStorage.clear();
+});
+
+describe("widget query persistence", () => {
+  test("persists successful dashboard data but not unrelated, ping, pending, or oversized queries", () => {
+    const widget = createSuccessfulQuery([["widget", "weather", "getWeather"], { type: "query" }], { temp: 21 });
+    const supporting = createSuccessfulQuery([["app", "byIds"], { type: "query" }], [{ id: "app-1" }]);
+    const unrelated = createSuccessfulQuery([["board", "getBoardByName"], { type: "query" }], { name: "Home" });
+    const ping = createSuccessfulQuery([["widget", "app", "ping"], { type: "query" }], { status: "online" });
+    const oversized = createSuccessfulQuery([["widget", "example"], { type: "query" }], {
+      value: "x".repeat(queryPersistenceMaxDataBytes + 1),
+    });
+    const pendingClient = new QueryClient();
+    const pending = pendingClient.getQueryCache().build(pendingClient, {
+      queryKey: [["widget", "calendar", "findAllEvents"], { type: "query" }],
+      queryFn: () => Promise.resolve([]),
+    });
+
+    expect(shouldPersistDashboardQuery(widget.query)).toBe(true);
+    expect(shouldPersistDashboardQuery(supporting.query)).toBe(true);
+    expect(shouldPersistDashboardQuery(unrelated.query)).toBe(false);
+    expect(shouldPersistDashboardQuery(ping.query)).toBe(false);
+    expect(shouldPersistDashboardQuery(oversized.query)).toBe(false);
+    expect(shouldPersistDashboardQuery(pending)).toBe(false);
+  });
+
+  test("uses stable, isolated storage keys for anonymous and authenticated scopes", () => {
+    expect(getQueryPersistenceStorageKey("user-a")).toBe(getQueryPersistenceStorageKey("user-a"));
+    expect(getQueryPersistenceStorageKey("user-a")).not.toBe(getQueryPersistenceStorageKey("user-b"));
+    expect(getQueryPersistenceStorageKey(null)).not.toBe(getQueryPersistenceStorageKey("user-a"));
+
+    const userAKey = getQueryPersistenceStorageKey("user-a");
+    window.sessionStorage.setItem(userAKey, "a");
+    createSessionQueryPersister("user-a").removeClient();
+    expect(window.sessionStorage.getItem(userAKey)).toBeNull();
+  });
+
+  test("evicts every other scope so signing out cannot leave data behind", () => {
+    const userAKey = getQueryPersistenceStorageKey("user-a");
+    const anonymousKey = getQueryPersistenceStorageKey(null);
+    window.sessionStorage.setItem(userAKey, "a");
+    window.sessionStorage.setItem(anonymousKey, "anonymous");
+    window.sessionStorage.setItem("unrelated", "kept");
+
+    createSessionQueryPersister("user-b");
+
+    expect(window.sessionStorage.getItem(userAKey)).toBeNull();
+    expect(window.sessionStorage.getItem(anonymousKey)).toBeNull();
+    expect(window.sessionStorage.getItem("unrelated")).toBe("kept");
+  });
+
+  test("never restores another session scope", async () => {
+    const queryKey = [["widget", "weather", "getWeather"], { type: "query" }] as const;
+    const { queryClient } = createSuccessfulQuery(queryKey, { temp: 21 });
+    const userAPersister = createSessionQueryPersister("user-a");
+    userAPersister.persistClient({
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: dehydrate(queryClient),
+    });
+    userAPersister.flush();
+    expect((await userAPersister.restoreClient())?.clientState.queries).toHaveLength(1);
+
+    expect(createSessionQueryPersister("user-b").restoreClient()).toBeUndefined();
+  });
+
+  test("stops persisting once the provider tears the cache down", async () => {
+    const storage = createMemoryStorage();
+    const persister = createSessionQueryPersister("user-a", storage);
+    const { queryClient } = createSuccessfulQuery([["widget", "weather", "getWeather"], { type: "query" }], {
+      temp: 21,
+    });
+
+    persister.persistClient({
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: dehydrate(queryClient),
+    });
+    persister.flush();
+    persister.stop();
+
+    persister.persistClient({
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: { mutations: [], queries: [] },
+    });
+    persister.flush();
+
+    expect((await persister.restoreClient())?.clientState.queries).toHaveLength(1);
+  });
+
+  test("removes the cache instead of storing an empty one", () => {
+    const scope = "user-a";
+    const key = getQueryPersistenceStorageKey(scope);
+    const persister = createSessionQueryPersister(scope);
+    window.sessionStorage.setItem(key, "stale");
+
+    persister.persistClient({
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: { mutations: [], queries: [] },
+    });
+    persister.flush();
+
+    expect(window.sessionStorage.getItem(key)).toBeNull();
+  });
+
+  test("round-trips SuperJSON data, strips refresh errors, and removes corrupted storage", async () => {
+    vi.useFakeTimers();
+    const scope = "user-a";
+    const key = getQueryPersistenceStorageKey(scope);
+    const persister = createSessionQueryPersister(scope);
+    const { query, queryClient } = createSuccessfulQuery([["widget", "calendar", "findAllEvents"], { type: "query" }], {
+      startsAt: new Date("2026-08-22T12:00:00.000Z"),
+    });
+    query.setState({ ...query.state, error: new Error("private refresh error"), status: "error" });
+    expect(shouldPersistDashboardQuery(query)).toBe(true);
+    const persistedClient: PersistedClient = {
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: dehydrate(queryClient, { shouldDehydrateQuery: shouldPersistDashboardQuery }),
+    };
+
+    persister.persistClient(persistedClient);
+    persister.flush();
+    const restored = await persister.restoreClient();
+    const restoredData = restored?.clientState.queries[0]?.state.data as { startsAt?: Date } | undefined;
+    expect(restoredData?.startsAt).toEqual(new Date("2026-08-22T12:00:00.000Z"));
+    expect(restored?.clientState.queries[0]?.state.status).toBe("success");
+    expect(restored?.clientState.queries[0]?.state.error).toBeNull();
+    expect(restored?.clientState.queries[0]?.state.isInvalidated).toBe(true);
+    expect(window.sessionStorage.getItem(key)).not.toContain("private refresh error");
+
+    window.sessionStorage.setItem(key, "not-valid-superjson");
+    expect(persister.restoreClient()).toBeUndefined();
+    expect(window.sessionStorage.getItem(key)).toBeNull();
+  });
+
+  test("sanitizes structurally valid but unsafe stored state before hydration", async () => {
+    const scope = "user-a";
+    const key = getQueryPersistenceStorageKey(scope);
+    const { queryClient } = createSuccessfulQuery(
+      [["widget", "calendar", "findAllEvents"], { type: "query" }],
+      [{ title: "safe" }],
+    );
+    const validQuery = dehydrate(queryClient).queries[0];
+    if (!validQuery) throw new Error("Expected a dehydrated query");
+
+    window.sessionStorage.setItem(
+      key,
+      stringify({
+        timestamp: Date.now(),
+        buster: queryPersistenceBuster,
+        clientState: {
+          mutations: [{ state: { status: "pending" } }],
+          queries: [
+            {
+              ...validQuery,
+              state: {
+                ...validQuery.state,
+                error: new Error("private refresh error"),
+                fetchStatus: "fetching",
+                status: "error",
+              },
+            },
+            {
+              ...validQuery,
+              queryHash: "unrelated",
+              queryKey: [["board", "getBoardByName"], { type: "query" }],
+            },
+            { queryHash: "malformed", queryKey: [["widget", "weather"]], state: null },
+            {
+              ...validQuery,
+              queryHash: "missing-timestamp",
+              state: { ...validQuery.state, dataUpdatedAt: undefined },
+            },
+          ],
+        },
+      }),
+    );
+
+    const restored = await createSessionQueryPersister(scope).restoreClient();
+    expect(restored?.clientState.mutations).toEqual([]);
+    expect(restored?.clientState.queries).toHaveLength(1);
+    expect(restored?.clientState.queries[0]?.state.status).toBe("success");
+    expect(restored?.clientState.queries[0]?.state.fetchStatus).toBe("idle");
+    expect(restored?.clientState.queries[0]?.state.error).toBeNull();
+  });
+
+  test.each([
+    ["expired", 1, queryPersistenceBuster],
+    ["different buster", new Date("2026-08-22T12:00:00.000Z").getTime(), "old-version"],
+    ["future timestamp", new Date("2026-08-22T12:00:00.000Z").getTime() + 1, queryPersistenceBuster],
+  ])("discards %s cache entries", async (_case, timestamp, storedBuster) => {
+    vi.useFakeTimers();
+    vi.setSystemTime(new Date("2026-08-22T12:00:00.000Z"));
+    const scope = "user-a";
+    const persister = createSessionQueryPersister(scope);
+    const { queryClient } = createSuccessfulQuery([["widget", "weather", "getWeather"], { type: "query" }], {
+      temp: 21,
+    });
+    persister.persistClient({ timestamp, buster: storedBuster, clientState: dehydrate(queryClient) });
+    persister.flush();
+
+    const restoredClient = new QueryClient();
+    await persistQueryClientRestore({
+      queryClient: restoredClient,
+      persister,
+      maxAge: 5 * 60 * 1_000,
+      buster: queryPersistenceBuster,
+    });
+
+    expect(restoredClient.getQueryData([["widget", "weather", "getWeather"], { type: "query" }])).toBeUndefined();
+    expect(window.sessionStorage.getItem(getQueryPersistenceStorageKey(scope))).toBeNull();
+  });
+
+  test("quota retry writes the cache after evicting the oldest query", async () => {
+    const old = createSuccessfulQuery([["widget", "old"], { type: "query" }], "old", 1);
+    const recent = createSuccessfulQuery([["widget", "recent"], { type: "query" }], "recent", 2);
+    const storage = createMemoryStorage();
+    const setItem = storage.setItem.bind(storage);
+    const setItemSpy = vi.spyOn(storage, "setItem").mockImplementation((key, value) => {
+      const client = parse<PersistedClient>(value);
+      if (client.clientState.queries.length > 1) throw new DOMException("quota", "QuotaExceededError");
+      setItem(key, value);
+    });
+    const persistedClient: PersistedClient = {
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: {
+        mutations: [],
+        queries: [...dehydrate(old.queryClient).queries, ...dehydrate(recent.queryClient).queries],
+      },
+    };
+    const persister = createSessionQueryPersister("user-a", storage);
+
+    persister.persistClient(persistedClient);
+    persister.flush();
+
+    expect(setItemSpy).toHaveBeenCalledTimes(2);
+    const restored = await persister.restoreClient();
+    expect(restored?.clientState.queries).toHaveLength(1);
+    expect(restored?.clientState.queries[0]?.queryKey).toEqual([["widget", "recent"], { type: "query" }]);
+  });
+
+  test("coalesces pending writes and can synchronously flush the latest cache before reload", async () => {
+    vi.useFakeTimers();
+    const storage = createMemoryStorage();
+    const setItem = vi.spyOn(storage, "setItem");
+    const queryKey = [["widget", "weather", "getWeather"], { type: "query" }] as const;
+    const first = createSuccessfulQuery(queryKey, { temp: 20 }, 1);
+    const latest = createSuccessfulQuery(queryKey, { temp: 21 }, 2);
+    const persister = createSessionQueryPersister("user-a", storage);
+
+    persister.persistClient({
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: dehydrate(first.queryClient),
+    });
+    persister.persistClient({
+      timestamp: Date.now(),
+      buster: queryPersistenceBuster,
+      clientState: dehydrate(latest.queryClient),
+    });
+
+    expect(setItem).not.toHaveBeenCalled();
+    persister.flush();
+    expect(setItem).toHaveBeenCalledOnce();
+    await vi.advanceTimersByTimeAsync(0);
+    expect(setItem).toHaveBeenCalledOnce();
+
+    const restored = await persister.restoreClient();
+    expect(restored?.clientState.queries[0]?.state.data).toEqual({ temp: 21 });
+  });
+
+  test("treats blocked storage operations as an empty cache", async () => {
+    const blockedStorage = {
+      getItem: () => {
+        throw new DOMException("blocked", "SecurityError");
+      },
+      removeItem: () => {
+        throw new DOMException("blocked", "SecurityError");
+      },
+      setItem: () => {
+        throw new DOMException("blocked", "SecurityError");
+      },
+    } as unknown as Storage;
+    const persister = createSessionQueryPersister("blocked", blockedStorage);
+    const { queryClient } = createSuccessfulQuery([["widget", "weather"], { type: "query" }], { temp: 21 });
+
+    expect(persister.restoreClient()).toBeUndefined();
+    expect(() => {
+      persister.persistClient({
+        timestamp: Date.now(),
+        buster: queryPersistenceBuster,
+        clientState: dehydrate(queryClient),
+      });
+      persister.flush();
+    }).not.toThrow();
+    expect(() => persister.removeClient()).not.toThrow();
+  });
+
+  test("treats an unavailable session storage getter as an empty cache", async () => {
+    vi.spyOn(window, "sessionStorage", "get").mockImplementation(() => {
+      throw new DOMException("blocked", "SecurityError");
+    });
+
+    expect(() => createSessionQueryPersister("blocked-getter")).not.toThrow();
+    expect(createSessionQueryPersister("blocked-getter").restoreClient()).toBeUndefined();
+  });
+});

apps/nextjs/src/app/[locale]/_client-providers/query-persistence.ts

@@ -0,0 +1,226 @@
+import type { QueryKey } from "@tanstack/react-query";
+import type { PersistedClient, Persister } from "@tanstack/react-query-persist-client";
+import { removeOldestQuery } from "@tanstack/react-query-persist-client";
+import { parse, stringify } from "superjson";
+
+import { isWidgetDataQueryKey, queryCacheDefaultGcTimeMs } from "@homarr/api/query-cache";
+
+export const queryPersistenceMaxAgeMs = queryCacheDefaultGcTimeMs;
+export const queryPersistenceMaxDataBytes = 256 * 1024;
+export const queryPersistenceBuster = "v2-session-superjson";
+
+const queryPersistenceStoragePrefix = "homarr:widget-query-cache";
+
+export const getQueryPersistenceStorageKey = (scope: string | null) =>
+  `${queryPersistenceStoragePrefix}:${encodeURIComponent(scope ?? "anonymous")}`;
+
+interface PersistableQuery {
+  queryKey: QueryKey;
+  state: {
+    data: unknown;
+    dataUpdatedAt: number;
+  };
+}
+
+export type SessionQueryPersister = Persister & { flush: () => void; stop: () => void };
+
+const textEncoder = new TextEncoder();
+const budgetVerdictCache = new WeakMap<object, boolean>();
+
+const measureFitsBudget = (data: unknown) => {
+  try {
+    return textEncoder.encode(stringify(data)).byteLength <= queryPersistenceMaxDataBytes;
+  } catch {
+    return false;
+  }
+};
+
+const fitsStorageBudget = (data: unknown) => {
+  if (typeof data !== "object" || data === null) return measureFitsBudget(data);
+
+  const cached = budgetVerdictCache.get(data);
+  if (cached !== undefined) return cached;
+
+  const verdict = measureFitsBudget(data);
+  budgetVerdictCache.set(data, verdict);
+  return verdict;
+};
+
+const holdsDashboardData = (query: PersistableQuery) =>
+  query.state.data !== undefined &&
+  Number.isFinite(query.state.dataUpdatedAt) &&
+  query.state.dataUpdatedAt > 0 &&
+  isWidgetDataQueryKey(query.queryKey);
+
+export const shouldPersistDashboardQuery = (query: PersistableQuery) =>
+  holdsDashboardData(query) && fitsStorageBudget(query.state.data);
+
+type DehydratedQuery = PersistedClient["clientState"]["queries"][number];
+
+const sanitizePersistedQuery = (query: DehydratedQuery): DehydratedQuery => ({
+  ...query,
+  state: {
+    ...query.state,
+    error: null,
+    errorUpdateCount: 0,
+    errorUpdatedAt: 0,
+    fetchFailureCount: 0,
+    fetchFailureReason: null,
+    fetchStatus: "idle",
+    isInvalidated: true,
+    status: "success",
+  },
+});
+
+const sanitizePersistedClient = (client: PersistedClient): PersistedClient => ({
+  ...client,
+  clientState: {
+    mutations: [],
+    queries: client.clientState.queries.map(sanitizePersistedQuery),
+  },
+});
+
+const isRecord = (value: unknown): value is Record<string, unknown> =>
+  typeof value === "object" && value !== null && !Array.isArray(value);
+
+const isRestorableQuery = (value: unknown): value is DehydratedQuery => {
+  if (!isRecord(value) || typeof value.queryHash !== "string" || !Array.isArray(value.queryKey)) return false;
+  if (!isRecord(value.state) || typeof value.state.status !== "string") return false;
+
+  return holdsDashboardData(value as unknown as PersistableQuery);
+};
+
+const sanitizeRestoredClient = (value: unknown): PersistedClient | undefined => {
+  if (!isRecord(value) || !Number.isFinite(value.timestamp) || typeof value.buster !== "string") return undefined;
+  if (!isRecord(value.clientState) || !Array.isArray(value.clientState.queries)) return undefined;
+
+  return {
+    timestamp: value.timestamp as number,
+    buster: value.buster,
+    clientState: {
+      mutations: [],
+      queries: value.clientState.queries.filter(isRestorableQuery).map(sanitizePersistedQuery),
+    },
+  };
+};
+
+const getSessionStorage = (): Storage | undefined => {
+  if (typeof window === "undefined") return undefined;
+
+  try {
+    return window.sessionStorage;
+  } catch {
+    return undefined;
+  }
+};
+
+const removeStorageItem = (storage: Storage | undefined, key: string) => {
+  try {
+    storage?.removeItem(key);
+  } catch {
+    return undefined;
+  }
+};
+
+const removeForeignScopes = (storage: Storage | undefined, activeKey: string) => {
+  if (!storage) return;
+
+  try {
+    const foreignKeys: string[] = [];
+    for (let index = 0; index < storage.length; index += 1) {
+      const storedKey = storage.key(index);
+      if (storedKey === null || storedKey === activeKey) continue;
+      if (storedKey.startsWith(`${queryPersistenceStoragePrefix}:`)) foreignKeys.push(storedKey);
+    }
+
+    for (const foreignKey of foreignKeys) storage.removeItem(foreignKey);
+  } catch {
+    return undefined;
+  }
+};
+
+export const createSessionQueryPersister = (
+  scope: string | null,
+  storage: Storage | undefined = getSessionStorage(),
+): SessionQueryPersister => {
+  const key = getQueryPersistenceStorageKey(scope);
+  removeForeignScopes(storage, key);
+  let pendingClient: PersistedClient | undefined;
+  let persistTimer: ReturnType<typeof setTimeout> | undefined;
+  let stopped = false;
+
+  const persistNow = (client: PersistedClient) => {
+    if (!storage) return;
+    let candidate: PersistedClient | undefined = sanitizePersistedClient(client);
+    let errorCount = 0;
+
+    if (candidate.clientState.queries.length === 0) {
+      removeStorageItem(storage, key);
+      return;
+    }
+
+    while (candidate) {
+      try {
+        storage.setItem(key, stringify(candidate));
+        return;
+      } catch (error) {
+        errorCount += 1;
+        candidate = removeOldestQuery({
+          persistedClient: candidate,
+          error: error instanceof Error ? error : new Error("Failed to persist the widget query cache"),
+          errorCount,
+        });
+      }
+    }
+  };
+
+  const clearPersistTimer = () => {
+    if (persistTimer === undefined) return;
+    clearTimeout(persistTimer);
+    persistTimer = undefined;
+  };
+
+  const flush = () => {
+    clearPersistTimer();
+    const client = pendingClient;
+    pendingClient = undefined;
+    if (client) persistNow(client);
+  };
+
+  return {
+    persistClient(client) {
+      if (!storage || stopped) return;
+      pendingClient = client;
+      if (persistTimer !== undefined) return;
+      persistTimer = setTimeout(flush, 0);
+    },
+    restoreClient() {
+      try {
+        const storedValue = storage?.getItem(key);
+        if (!storedValue) return undefined;
+
+        const client = sanitizeRestoredClient(parse<unknown>(storedValue));
+        if (!client || client.timestamp > Date.now() || client.clientState.queries.length === 0) {
+          removeStorageItem(storage, key);
+          return undefined;
+        }
+
+        return client;
+      } catch {
+        removeStorageItem(storage, key);
+        return undefined;
+      }
+    },
+    removeClient() {
+      clearPersistTimer();
+      pendingClient = undefined;
+      removeStorageItem(storage, key);
+    },
+    flush,
+    stop() {
+      stopped = true;
+      clearPersistTimer();
+      pendingClient = undefined;
+    },
+  };
+};

apps/nextjs/src/app/[locale]/_client-providers/trpc.tsx

@@ -1,10 +1,11 @@
 "use client";
 
 import type { PropsWithChildren } from "react";
-import { useEffect, useMemo, useState } from "react";
+import { useCallback, useEffect, useMemo, useState } from "react";
 import dynamic from "next/dynamic";
-import { QueryClient, QueryClientProvider } from "@tanstack/react-query";
+import { QueryClient } from "@tanstack/react-query";
 import { ReactQueryStreamedHydration } from "@tanstack/react-query-next-experimental";
+import { PersistQueryClientProvider } from "@tanstack/react-query-persist-client";
 import {
   createWSClient,
   httpBatchStreamLink,
@@ -35,6 +36,13 @@ import { showWarningNotification } from "@homarr/notifications";
 import { widgetQueryRefetchIntervals } from "@homarr/widgets/refetch-intervals";
 
 import { getSessionQueryScope, SessionQueryScopeGuard } from "./session-query-scope";
+import {
+  createSessionQueryPersister,
+  queryPersistenceBuster,
+  queryPersistenceMaxAgeMs,
+  shouldPersistDashboardQuery,
+} from "./query-persistence";
+import type { SessionQueryPersister } from "./query-persistence";
 import { createQueryRetry } from "./query-retry";
 
 const DevelopmentTools =
@@ -67,21 +75,29 @@ export function TRPCReactProvider({ children }: PropsWithChildren) {
   const { data: session } = useSession();
   const sessionQueryScope = getSessionQueryScope(session);
   const [initialSessionQueryScope] = useState(() => sessionQueryScope);
+  const [queryPersister] = useState(() => createSessionQueryPersister(initialSessionQueryScope));
+  const handleScopeChange = useCallback(() => {
+    void queryPersister.removeClient();
+    reloadPage();
+  }, [queryPersister]);
 
   return (
     <SessionQueryScopeGuard
       initialScope={initialSessionQueryScope}
       currentScope={sessionQueryScope}
-      onScopeChange={reloadPage}
+      onScopeChange={handleScopeChange}
     >
-      <ScopedTRPCReactProvider>{children}</ScopedTRPCReactProvider>
+      <ScopedTRPCReactProvider queryPersister={queryPersister}>{children}</ScopedTRPCReactProvider>
     </SessionQueryScopeGuard>
   );
 }
 
 const reloadPage = () => window.location.reload();
 
-const ScopedTRPCReactProvider = ({ children }: PropsWithChildren) => {
+const ScopedTRPCReactProvider = ({
+  children,
+  queryPersister,
+}: PropsWithChildren<{ queryPersister: SessionQueryPersister }>) => {
   const wsClient = useMemo(
     () =>
       createWSClient({
@@ -136,6 +152,15 @@ const ScopedTRPCReactProvider = ({ children }: PropsWithChildren) => {
     return client;
   });
 
+  useEffect(() => {
+    const flush = () => queryPersister.flush();
+    window.addEventListener("pagehide", flush);
+    return () => {
+      window.removeEventListener("pagehide", flush);
+      flush();
+      queryPersister.stop();
+    };
+  }, [queryPersister]);
   useEffect(() => () => queryClient.clear(), [queryClient]);
 
   const trpcClient = useMemo(() => {
@@ -186,10 +211,18 @@ const ScopedTRPCReactProvider = ({ children }: PropsWithChildren) => {
 
   return (
     <clientApi.Provider client={trpcClient} queryClient={queryClient}>
-      <QueryClientProvider client={queryClient}>
+      <PersistQueryClientProvider
+        client={queryClient}
+        persistOptions={{
+          persister: queryPersister,
+          maxAge: queryPersistenceMaxAgeMs,
+          buster: queryPersistenceBuster,
+          dehydrateOptions: { shouldDehydrateQuery: shouldPersistDashboardQuery },
+        }}
+      >
         <ReactQueryStreamedHydration transformer={superjson}>{children}</ReactQueryStreamedHydration>
         {process.env.NODE_ENV === "development" && <DevelopmentTools />}
-      </QueryClientProvider>
+      </PersistQueryClientProvider>
     </clientApi.Provider>
   );
 };

apps/nextjs/src/app/[locale]/boards/(content)/_header-actions.tsx

@@ -53,13 +53,11 @@ export const BoardContentHeaderActions = ({ demoReadOnly }: { demoReadOnly: bool
 
       <EditModeMenu demoReadOnly={demoReadOnly} />
 
-      {!demoReadOnly && (
-        <TourTarget id="board-settings">
-          <HeaderButton href={`/boards/${board.name}/settings`} aria-label={t("action.settings")}>
-            <IconSettings stroke={1.5} />
-          </HeaderButton>
-        </TourTarget>
-      )}
+      <TourTarget id="board-settings">
+        <HeaderButton href={`/boards/${board.name}/settings`} aria-label={t("action.settings")}>
+          <IconSettings stroke={1.5} />
+        </HeaderButton>
+      </TourTarget>
     </>
   );
 };

apps/nextjs/src/components/assistant/assistant-provider.tsx

@@ -32,7 +32,7 @@ import { showErrorNotification, showWarningNotification } from "@homarr/notifica
 import { closeSpotlight } from "@homarr/spotlight/store";
 import { useI18n } from "@homarr/translation/client";
 import { openMediaRequestSearch, openSpotlight, useRegisterSpotlightContextResults } from "@homarr/spotlight";
-import { AssistantWidgetRendererProvider } from "@homarr/widgets";
+import { AssistantWidgetRendererProvider } from "@homarr/widgets/assistant/context";
 import { createWorkshopClient } from "~/components/workshop/workshop-client";
 
 import { AssistantContext, AssistantPreferencesContext, useAssistantPreferences } from "./assistant-context";

apps/nextjs/src/components/assistant/assistant-widget-tool.spec.ts

@@ -20,6 +20,7 @@ describe("getAssistantWidgetConfiguration", () => {
 
   test("preserves generated notebook content and fills its hidden defaults", () => {
     const result = getAssistantWidgetConfiguration(
+      widgetImports.notebook.definition,
       {
         boardId: "board-1",
         boardName: "Home",
@@ -41,6 +42,7 @@ describe("getAssistantWidgetConfiguration", () => {
 
   test("keeps only accessible, compatible integrations and respects the widget maximum", () => {
     const result = getAssistantWidgetConfiguration(
+      widgetImports.audioStats.definition,
       {
         boardId: "board-1",
         boardName: "Home",
@@ -88,11 +90,13 @@ describe("getAssistantWidgetConfiguration", () => {
 
   test("treats integration-backed widgets as required unless explicitly optional", () => {
     const mediaServer = getAssistantWidgetConfiguration(
+      widgetImports.mediaServer.definition,
       { boardId: "board-1", boardName: "Home", kind: "mediaServer", summary: "Show Plex streams" },
       settings,
       [],
     );
     const calendar = getAssistantWidgetConfiguration(
+      widgetImports.calendar.definition,
       { boardId: "board-1", boardName: "Home", kind: "calendar", summary: "Show releases" },
       settings,
       [],

apps/nextjs/src/components/assistant/assistant-widget-tool.tsx

@@ -1,9 +1,11 @@
 "use client";
 
-import { useMemo } from "react";
+import { Suspense, use, useMemo } from "react";
 import type { ToolCallMessagePartProps } from "@assistant-ui/react";
 import { Alert, Box, Button, Group, Skeleton, Stack, Text, ThemeIcon } from "@mantine/core";
 import { IconAlertTriangle, IconCheck, IconSettings } from "@tabler/icons-react";
+import { ErrorBoundary } from "react-error-boundary";
+import type { FallbackProps } from "react-error-boundary";
 
 import { clientApi } from "@homarr/api/client";
 import { useSession } from "@homarr/auth/client";
@@ -13,7 +15,8 @@ import { useModalAction } from "@homarr/modals";
 import type { SettingsContextProps } from "@homarr/settings/creator";
 import { useSettings } from "@homarr/settings";
 import { useI18n } from "@homarr/translation/client";
-import { reduceWidgetOptionsWithDefaultValues, widgetImports } from "@homarr/widgets";
+import type { WidgetDefinition } from "@homarr/widgets/definition";
+import { loadWidgetDefinition, reduceWidgetOptionsWithDefinition } from "@homarr/widgets/manifest";
 import type { IntegrationSelectOption } from "@homarr/widgets/widget-integration-select";
 import { WidgetEditModal } from "@homarr/widgets/modals";
 
@@ -29,11 +32,11 @@ interface AssistantIntegration extends IntegrationSelectOption {
 }
 
 export const getAssistantWidgetConfiguration = (
+  definition: WidgetDefinition,
   args: ConfigureWidgetArgs,
   settings: Pick<SettingsContextProps, "enableStatusByDefault" | "forceDisableStatus">,
   integrations: AssistantIntegration[],
 ) => {
-  const definition = widgetImports[args.kind].definition;
   const integrationSupport = "supportedIntegrations" in definition;
   const supportedIntegrations = integrationSupport
     ? (definition.supportedIntegrations as readonly IntegrationKind[])
@@ -54,35 +57,91 @@ export const getAssistantWidgetConfiguration = (
       integrationSupport && (!("integrationsRequired" in definition) || definition.integrationsRequired !== false),
     value: {
       advancedOptions: { title: null, customCssClasses: [], borderColor: "" },
-      options: reduceWidgetOptionsWithDefaultValues(args.kind, settings, args.options),
+      options: reduceWidgetOptionsWithDefinition(definition, settings, args.options),
       integrationIds,
     },
   };
 };
 
-export const AssistantConfigureWidgetTool = ({
+type AssistantConfigureWidgetToolProps = ToolCallMessagePartProps<ConfigureWidgetArgs, ConfigureWidgetResult>;
+
+export const AssistantConfigureWidgetTool = (props: AssistantConfigureWidgetToolProps) => {
+  const hasCompleteArguments = hasCompleteAssistantToolArguments(props.status);
+  const completeArgs =
+    props.result === undefined && !hasFailedAssistantToolArguments(props.status) && hasCompleteArguments
+      ? props.args
+      : undefined;
+
+  if (!completeArgs) return <AssistantConfigureWidgetToolContent {...props} definition={undefined} />;
+
+  return (
+    <ErrorBoundary FallbackComponent={AssistantWidgetDefinitionErrorFallback} resetKeys={[completeArgs.kind]}>
+      <Suspense fallback={<AssistantConfigureWidgetSkeleton />}>
+        <LoadedAssistantConfigureWidgetTool {...props} args={completeArgs} />
+      </Suspense>
+    </ErrorBoundary>
+  );
+};
+
+const AssistantWidgetDefinitionErrorFallback = ({ resetErrorBoundary }: FallbackProps) => {
+  const t = useI18n("assistant.configureWidget");
+  const actionT = useI18n("common.action");
+
+  return (
+    <Alert color="red" variant="light" title={t("definitionLoadErrorTitle")} icon={<IconAlertTriangle size={18} />}>
+      <Stack gap="sm">
+        <Text size="sm">{t("definitionLoadErrorDescription")}</Text>
+        <Button variant="light" color="red" size="compact-sm" w="fit-content" onClick={resetErrorBoundary}>
+          {actionT("tryAgain")}
+        </Button>
+      </Stack>
+    </Alert>
+  );
+};
+
+const LoadedAssistantConfigureWidgetTool = (
+  props: AssistantConfigureWidgetToolProps & { args: ConfigureWidgetArgs },
+) => {
+  const definition = use(loadWidgetDefinition(props.args.kind));
+  return <AssistantConfigureWidgetToolContent {...props} definition={definition} />;
+};
+
+const AssistantConfigureWidgetSkeleton = () => {
+  const t = useI18n("assistant.configureWidget");
+  return (
+    <Box className={classes.appTool} aria-label={t("preparing")}>
+      <Stack gap="sm">
+        <Skeleton height={18} width="45%" />
+        <Skeleton height={14} width="76%" />
+        <Skeleton height={38} />
+      </Stack>
+    </Box>
+  );
+};
+
+const AssistantConfigureWidgetToolContent = ({
   args,
   result,
   addResult,
   status,
   toolCallId,
-}: ToolCallMessagePartProps<ConfigureWidgetArgs, ConfigureWidgetResult>) => {
+  definition,
+}: AssistantConfigureWidgetToolProps & { definition: WidgetDefinition | undefined }) => {
   const t = useI18n("assistant.configureWidget");
   const actionT = useI18n("common.action");
   const fullT = useI18n();
   const { data: session } = useSession();
   const settings = useSettings();
   const hasCompleteArguments = hasCompleteAssistantToolArguments(status);
-  const definition = args?.kind ? widgetImports[args.kind].definition : undefined;
   const needsIntegrations = definition !== undefined && "supportedIntegrations" in definition;
   const integrations = clientApi.integration.all.useQuery(undefined, {
     enabled: result === undefined && hasCompleteArguments && needsIntegrations,
     retry: false,
   });
   const configuration = useMemo(() => {
-    if (!args || !hasCompleteArguments || (needsIntegrations && !integrations.data)) return null;
-    return getAssistantWidgetConfiguration(args, settings, integrations.data ?? []);
-  }, [args, hasCompleteArguments, integrations.data, needsIntegrations, settings]);
+    if (!args || !definition || !hasCompleteArguments || (needsIntegrations && !integrations.data)) return null;
+    return getAssistantWidgetConfiguration(definition, args, settings, integrations.data ?? []);
+  }, [args, definition, hasCompleteArguments, integrations.data, needsIntegrations, settings]);
   const missingRequiredIntegration =
     configuration?.integrationsRequired === true && configuration.value.integrationIds.length === 0;
   const { openModal: openWidgetModal } = useModalAction(WidgetEditModal);
@@ -134,15 +193,7 @@ export const AssistantConfigureWidgetTool = ({
   }
 
   if (!hasCompleteArguments || !args || (needsIntegrations && integrations.isPending)) {
-    return (
-      <Box className={classes.appTool} aria-label={t("preparing")}>
-        <Stack gap="sm">
-          <Skeleton height={18} width="45%" />
-          <Skeleton height={14} width="76%" />
-          <Skeleton height={38} />
-        </Stack>
-      </Box>
-    );
+    return <AssistantConfigureWidgetSkeleton />;
   }
 
   if (integrations.isError) {
@@ -158,7 +209,7 @@ export const AssistantConfigureWidgetTool = ({
     );
   }
 
-  if (!configuration) return null;
+  if (!configuration || !definition) return null;
 
   const openConfigurationModal = (
     value = configuration.value,
@@ -167,7 +218,7 @@ export const AssistantConfigureWidgetTool = ({
     openWidgetModal(
       {
         kind: args.kind,
-        definition: widgetImports[args.kind].definition,
+        definition,
         value,
         integrationData,
         integrationSupport: configuration.integrationSupport,
@@ -240,7 +291,7 @@ export const AssistantConfigureWidgetTool = ({
     );
   }
 
-  const WidgetIcon = widgetImports[args.kind].definition.icon;
+  const WidgetIcon = definition.icon;
   return (
     <Box className={classes.appTool}>
       <Group gap="sm" align="flex-start" wrap="nowrap">

apps/nextjs/src/components/board/items/item-content.module.css

@@ -1,3 +1,17 @@
+.refreshIndicator {
+  position: absolute;
+  top: 0.25rem;
+  right: 0.25rem;
+  z-index: 3;
+  display: grid;
+  place-items: center;
+  width: 1.25rem;
+  height: 1.25rem;
+  border-radius: 999px;
+  background: color-mix(in srgb, var(--mantine-color-body) 78%, transparent);
+  pointer-events: none;
+}
+
 .settingsButton {
   position: absolute;
   top: -34px;

apps/nextjs/src/components/board/items/item-content.tsx

@@ -4,7 +4,7 @@ import { createPortal } from "react-dom";
 import dynamic from "next/dynamic";
 import { Box, Button, Center, Loader, Portal } from "@mantine/core";
 import { useElementSize, useIsomorphicEffect } from "@mantine/hooks";
-import { QueryErrorResetBoundary, useQueryClient } from "@tanstack/react-query";
+import { QueryErrorResetBoundary, useIsFetching, useQueryClient } from "@tanstack/react-query";
 import combineClasses from "clsx";
 import { NoIntegrationSelectedError } from "@homarr/widgets/errors/classes";
 import type { FallbackProps } from "react-error-boundary";
@@ -19,6 +19,7 @@ import { WidgetError } from "@homarr/widgets/errors";
 import {
   createWidgetRuntimeState,
   getWidgetQueryKeys,
+  getWidgetRuntimeQueries,
   supportsAdvancedFocus as definitionSupportsAdvancedFocus,
 } from "@homarr/widgets/definition";
 import type { WidgetComponentProps, WidgetDefinition, WidgetRuntimeRef } from "@homarr/widgets/definition";
@@ -39,6 +40,7 @@ import { useItemActions } from "./item-actions";
 import itemContentClasses from "./item-content.module.css";
 import { WidgetContextMenu } from "./widget-context-menu";
 import { removeWidgetDataQueries } from "./widget-query-recovery";
+import { matchesWidgetItemQuery } from "./widget-query-scope";
 
 const BoardItemMenu = dynamic(() => import("./item-menu").then((module) => module.BoardItemMenu), {
   ssr: false,
@@ -156,6 +158,24 @@ const LoadedBoardItemContent = ({
     () => ({ ...item, options: reduceWidgetOptionsWithDefinition(definition, settings, item.options) }),
     [definition, item, settings],
   );
+  const widgetQueryKeys = useMemo(() => getWidgetQueryKeys(definition, item.kind), [definition, item.kind]);
+  const isWidgetRefreshing =
+    useIsFetching({
+      predicate: (query) =>
+        query.state.data !== undefined &&
+        matchesWidgetItemQuery(
+          query.queryKey,
+          widgetQueryKeys,
+          {
+            itemId: item.id,
+            boardId: board.id,
+            integrationIds: item.integrationIds,
+            options: menuItem.options,
+            runtimeQueries: getWidgetRuntimeQueries(widgetRuntimeRef),
+          },
+          definition.queryMatcher,
+        ),
+    }) > 0;
   const [manualSurface, setManualSurface] = useState<HTMLDivElement | null>(null);
   const [surfacePortalTarget, setSurfacePortalTarget] = useState<HTMLDivElement | null>(null);
   const { active, viewportSize, open, close, dismiss, hover, leave } = useAdvancedFocus();
@@ -322,6 +342,11 @@ const LoadedBoardItemContent = ({
           />
         </ErrorBoundary>
       </Box>
+      {isWidgetRefreshing && (
+        <Box className={itemContentClasses.refreshIndicator} data-widget-refreshing aria-hidden>
+          <Loader size="xs" />
+        </Box>
+      )}
     </WidgetCardShell>
   );
 

e2e/lazy-widgets.spec.ts

@@ -1,5 +1,6 @@
 import { createId } from "@paralleldrive/cuid2";
 import { chromium, expect } from "@playwright/test";
+import type { Route } from "@playwright/test";
 import { eq } from "drizzle-orm";
 import { stringify } from "superjson";
 import { describe, test } from "vitest";
@@ -21,7 +22,9 @@ describe("lazy widget application graph", () => {
     const boardId = createId();
     const layoutId = createId();
     const sectionId = createId();
-    const itemId = createId();
+    const clockItemId = createId();
+    const downloadsItemId = createId();
+    const mockIntegrationId = createId();
 
     await db.insert(sqliteSchema.boards).values({
       id: boardId,
@@ -41,26 +44,56 @@ describe("lazy widget application graph", () => {
       xOffset: 0,
       yOffset: 0,
     });
-    await db.insert(sqliteSchema.items).values({
-      id: itemId,
-      boardId,
-      kind: "clock",
-      options: stringify({ showSeconds: true }),
+    await db.insert(sqliteSchema.integrations).values({
+      id: mockIntegrationId,
+      name: "Mock downloads",
+      url: "http://mock.local",
+      kind: "mock",
     });
-    await db.insert(sqliteSchema.itemLayouts).values({
-      itemId,
-      sectionId,
-      layoutId,
-      xOffset: 0,
-      yOffset: 0,
-      width: 4,
-      height: 2,
+    await db.insert(sqliteSchema.items).values([
+      {
+        id: clockItemId,
+        boardId,
+        kind: "clock",
+        options: stringify({ showSeconds: true }),
+      },
+      {
+        id: downloadsItemId,
+        boardId,
+        kind: "downloads",
+        options: stringify({}),
+      },
+    ]);
+    await db.insert(sqliteSchema.itemLayouts).values([
+      {
+        itemId: clockItemId,
+        sectionId,
+        layoutId,
+        xOffset: 0,
+        yOffset: 0,
+        width: 4,
+        height: 2,
+      },
+      {
+        itemId: downloadsItemId,
+        sectionId,
+        layoutId,
+        xOffset: 0,
+        yOffset: 2,
+        width: 8,
+        height: 5,
+      },
+    ]);
+    await db.insert(sqliteSchema.integrationItems).values({
+      itemId: downloadsItemId,
+      integrationId: mockIntegrationId,
     });
     await db.update(sqliteSchema.users).set({ homeBoardId: boardId }).where(eq(sqliteSchema.users.id, userId));
 
     const homarrContainer = await createHomarrContainer({
       environment: {
         AUTH_PROVIDERS: "credentials",
+        UNSAFE_ENABLE_MOCK_INTEGRATION: "true",
       },
       mounts: {
         "/appdata": localMountPath,
@@ -69,10 +102,18 @@ describe("lazy widget application graph", () => {
 
     const baseUrl = `http://${homarrContainer.getHost()}:${homarrContainer.getMappedPort(7575)}`;
     const browser = await chromium.launch();
-    const context = await browser.newContext();
+    const context = await browser.newContext({ serviceWorkers: "block" });
     const page = await context.newPage();
     const pageErrors: Error[] = [];
+    const hydrationErrors: string[] = [];
     page.on("pageerror", (error) => pageErrors.push(error));
+    const hydrationErrorPattern = /hydrat|did not match|react\.dev\/errors\/4(18|2[1235])|react error #4(18|2[1235])/i;
+    page.on("console", (message) => {
+      if (message.type() === "error" && hydrationErrorPattern.test(message.text())) {
+        hydrationErrors.push(message.text());
+      }
+    });
+    let releaseRefresh: (() => void) | undefined;
 
     try {
       await page.goto(`${baseUrl}/auth/login`);
@@ -88,9 +129,18 @@ describe("lazy widget application graph", () => {
       const visibleBoard = page.locator("[data-homarr-dev-benchmark-board]").filter({ visible: true }).first();
       await expect(visibleBoard).toBeVisible({ timeout: 30_000 });
       const clockWidget = page.locator(
-        `[data-id="${itemId}"] .clock-widget-container, [data-grid-item-id="${itemId}"] .clock-widget-container`,
+        `[data-id="${clockItemId}"] .clock-widget-container, [data-grid-item-id="${clockItemId}"] .clock-widget-container`,
       );
       await expect(clockWidget.filter({ visible: true }).first()).toBeVisible({ timeout: 30_000 });
+      await expect(clockWidget.locator("time").filter({ visible: true }).first()).not.toHaveText("--:--", {
+        timeout: 30_000,
+      });
+      const downloadsWidget = page
+        .locator(`[data-id="${downloadsItemId}"], [data-grid-item-id="${downloadsItemId}"]`)
+        .filter({ visible: true })
+        .first();
+      const cachedDownload = downloadsWidget.getByText("Big.Buck.Bunny.2008.1080p.BluRay.x264");
+      await expect(cachedDownload).toBeVisible({ timeout: 30_000 });
 
       await expect(page.locator("[data-homarr-dev-benchmark-spotlight-preloaded]")).toHaveCount(1, {
         timeout: 15_000,
@@ -101,23 +151,59 @@ describe("lazy widget application graph", () => {
       await page.keyboard.press("Escape");
       await expect(page.locator("[data-homarr-dev-benchmark-spotlight]")).not.toBeVisible();
 
-      await expect
-        .poll(
-          async () =>
-            await page.evaluate(async () => {
-              const registrations = await navigator.serviceWorker.getRegistrations();
-              return registrations[0]?.scope ?? null;
-            }),
-          { timeout: 15_000 },
-        )
-        .toBe(`${baseUrl}/`);
+      let refreshRequestStarted = false;
+      const refreshGate = new Promise<void>((resolve) => {
+        releaseRefresh = resolve;
+      });
+      const downloadsRequestPattern = "**/*widget.downloads.getJobsAndStatuses*";
+      const delayDownloadsRefresh = async (route: Route) => {
+        refreshRequestStarted = true;
+        await refreshGate;
+        await route.continue();
+      };
+      await page.route(downloadsRequestPattern, delayDownloadsRefresh);
 
-      await page.reload();
+      await page.reload({ waitUntil: "domcontentloaded" });
       await expect(clockWidget.filter({ visible: true }).first()).toBeVisible({ timeout: 30_000 });
+      await expect(clockWidget.locator("time").filter({ visible: true }).first()).not.toHaveText("--:--", {
+        timeout: 30_000,
+      });
+      await expect.poll(() => refreshRequestStarted, { timeout: 10_000 }).toBe(true);
+      await expect(cachedDownload).toBeVisible({ timeout: 5_000 });
+      await expect(downloadsWidget.locator("[data-widget-refreshing]")).toBeVisible();
+
+      const refreshedDownloadsResponse = page.waitForResponse(
+        (response) => response.url().includes("widget.downloads.getJobsAndStatuses") && response.ok(),
+      );
+      releaseRefresh();
+      releaseRefresh = undefined;
+      await refreshedDownloadsResponse;
+      await expect(downloadsWidget.locator("[data-widget-refreshing]")).toHaveCount(0);
+      await page.unroute(downloadsRequestPattern, delayDownloadsRefresh);
       expect(pageErrors).toEqual([]);
+      expect(hydrationErrors).toEqual([]);
+
+      const serviceWorkerContext = await browser.newContext();
+      const serviceWorkerPage = await serviceWorkerContext.newPage();
+      try {
+        await serviceWorkerPage.goto(`${baseUrl}/auth/login`);
+        await expect
+          .poll(
+            async () =>
+              await serviceWorkerPage.evaluate(async () => {
+                const registrations = await navigator.serviceWorker.getRegistrations();
+                return registrations[0]?.scope ?? null;
+              }),
+            { timeout: 15_000 },
+          )
+          .toBe(`${baseUrl}/`);
+      } finally {
+        await serviceWorkerContext.close();
+      }
     } finally {
+      releaseRefresh?.();
       await browser.close();
       await homarrContainer.stop();
     }
-  }, 120_000);
+  }, 180_000);
 });

packages/api/src/query-cache.ts

@@ -8,6 +8,8 @@ export const queryCacheDefaultGcTimeMs = 1000 * 60 * 5;
 export const queryCacheMetadataStaleTimeMs = 1000 * 60 * 5;
 
 const widgetDataQueryPaths = new Set(["app.byId", "app.byIds", "docker.getContainers", "integration.byIds"]);
+// Beszel system stats are large time-series payloads and were deliberately kept out of
+// the persisted cache in #6289; live stats come from an SSE subscription instead.
 const excludedWidgetPaths = new Set(["widget.app.ping", "widget.beszel.getSystemStats"]);
 
 export const isWidgetDataTrpcPath = (path: string) => {

packages/translation/src/lang/en.json

@@ -7771,6 +7771,8 @@
       "ready": "Widget configuration ready",
       "cancelled": "Widget was not added",
       "automaticContinue": "Accepting the proposed widget configuration automatically",
+      "definitionLoadErrorTitle": "Widget settings could not be loaded",
+      "definitionLoadErrorDescription": "Homarr could not load this widget's settings. Try again.",
       "loadErrorTitle": "Integrations could not be loaded",
       "loadErrorDescription": "Homarr could not load the integrations available for this widget.",
       "noIntegrationTitle": "A compatible integration is required",

packages/widgets/src/bookmarks/bookmarks-widget.tsx

@@ -23,7 +23,8 @@ import { useRegisterSpotlightContextResults } from "@homarr/spotlight";
 import { useI18n } from "@homarr/translation/client";
 
 import { getSafeAppHref, SAFE_NEW_TAB_REL } from "../common/application-url";
-import { getUsableWidgetQueryData } from "../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../common/query-state";
+import { WidgetQueryLoadingState } from "../common/query-state-indicator";
 import type { WidgetComponentProps } from "../definition";
 import { createDirectBookmark, getBookmarkFaviconUrl, getDirectBookmarkUrl } from "./bookmark-item";
 import type { BookmarkItem } from "./bookmark-item";
@@ -43,14 +44,12 @@ export default function BookmarksWidget({
   const board = useRequiredBoard();
   const advanced = displayMode === "advanced";
   const appIds = useMemo(() => options.items.filter((value) => !getDirectBookmarkUrl(value)), [options.items]);
-  const apps =
-    getUsableWidgetQueryData(
-      clientApi.app.byIds.useQuery(appIds, {
-        select(selectedApps) {
-          return selectedApps;
-        },
-      }),
-    ) ?? [];
+  const appsQuery = clientApi.app.byIds.useQuery(appIds, {
+    select(selectedApps) {
+      return selectedApps;
+    },
+  });
+  const apps = getUsableWidgetQueryData(appsQuery) ?? [];
   const appsById = new Map(apps.map((app) => [app.id, app]));
   const configuredItems = options.items.flatMap((value) => {
     const directUrl = getDirectBookmarkUrl(value);
@@ -127,6 +126,8 @@ export default function BookmarksWidget({
     />
   ));
 
+  if (appIds.length > 0 && isInitialWidgetQueryPending(appsQuery)) return <WidgetQueryLoadingState />;
+
   return (
     <Stack h="100%" mih={0} gap={height < 120 ? 6 : "sm"} p={height < 120 ? 6 : "sm"}>
       {options.title.length > 0 ? (

packages/widgets/src/calendar/component.tsx

@@ -15,7 +15,8 @@ import { useCurrentIntlLocale, useI18n } from "@homarr/translation/client";
 
 import actionTargetClasses from "../common/action-target.module.css";
 import type { WidgetComponentProps } from "../definition";
-import { getUsableWidgetQueryData } from "../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../common/query-state";
+import { WidgetQueryLoadingState } from "../common/query-state-indicator";
 import { useWidgetRuntimeQueries } from "../runtime-hooks";
 import { IntegrationErrorIndicator } from "../common/integration-error-indicator";
 import { CalendarDay } from "./calender-day";
@@ -98,6 +99,8 @@ const FetchCalendar = ({ month, setMonth, isEditMode, integrationIds, options, d
       error ? [{ integrationId: integration.id, integrationName: integration.name, error }] : [],
     ) ?? [];
 
+  if (isInitialWidgetQueryPending(calendarQuery)) return <WidgetQueryLoadingState />;
+
   return (
     <CalendarBase
       isEditMode={isEditMode}

packages/widgets/src/dns-hole/controls/component.tsx

@@ -34,7 +34,8 @@ import { MaskedOrNormalImage } from "@homarr/ui";
 import type { widgetKind } from ".";
 import type { WidgetComponentProps } from "../../definition";
 import { IntegrationErrorIndicator } from "../../common/integration-error-indicator";
-import { getUsableWidgetQueryData } from "../../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../../common/query-state";
+import { WidgetQueryLoadingState } from "../../common/query-state-indicator";
 import actionTargetClasses from "../../common/action-target.module.css";
 import classes from "./component.module.css";
 import TimerModal from "./TimerModal";
@@ -67,7 +68,6 @@ export default function DnsHoleControlsWidget({
   const summaryQuery = clientApi.widget.dnsHole.summary.useQuery({ integrationIds });
   const summaryResults = getUsableWidgetQueryData(summaryQuery) ?? [];
   const summaries = summaryResults.filter(isAvailableDnsSummaryResult);
-  const { isPending: isSummaryPending } = summaryQuery;
   const utils = clientApi.useUtils();
 
   const {
@@ -122,7 +122,6 @@ export default function DnsHoleControlsWidget({
   );
 
   const t = useI18n("widget.dnsHoleControls");
-  const tCommon = useI18n("common");
 
   // Timer modal setup
   const [selectedIntegrationIds, setSelectedIntegrationIds] = useState<string[]>([]);
@@ -141,15 +140,7 @@ export default function DnsHoleControlsWidget({
     setBulkPending(false);
   };
 
-  if (isSummaryPending) {
-    return (
-      <Stack h="100%" justify="center" align="center">
-        <Text c="dimmed" size="sm">
-          {tCommon("action.loading")}
-        </Text>
-      </Stack>
-    );
-  }
+  if (isInitialWidgetQueryPending(summaryQuery)) return <WidgetQueryLoadingState />;
 
   return (
     <Stack

packages/widgets/src/dns-hole/summary/component.tsx

@@ -31,7 +31,8 @@ import type { TablerIcon } from "@homarr/ui";
 import type { widgetKind } from ".";
 import type { WidgetComponentProps, WidgetProps } from "../../definition";
 import { IntegrationErrorIndicator } from "../../common/integration-error-indicator";
-import { getUsableWidgetQueryData } from "../../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../../common/query-state";
+import { WidgetQueryLoadingState } from "../../common/query-state-indicator";
 
 export default function DnsHoleSummaryWidget({
   options,
@@ -43,10 +44,8 @@ export default function DnsHoleSummaryWidget({
     integrationIds,
   });
   const summaries = getUsableWidgetQueryData(summaryQuery) ?? [];
-  const { isPending } = summaryQuery;
 
   const t = useI18n();
-  const tCommon = useI18n("common");
   const tDns = useI18n("widget.dnsHoleSummary");
   const tWidgetCommon = useI18n("widget.common");
 
@@ -55,15 +54,7 @@ export default function DnsHoleSummaryWidget({
   const layoutProps = boxPropsByLayout(options.layout);
   const showSourceStatuses = successfulSummaries.length > 1 && width >= 240 && height >= 220;
 
-  if (isPending) {
-    return (
-      <Stack h="100%" justify="center" align="center">
-        <Text c="dimmed" size="sm">
-          {tCommon("action.loading")}
-        </Text>
-      </Stack>
-    );
-  }
+  if (isInitialWidgetQueryPending(summaryQuery)) return <WidgetQueryLoadingState />;
 
   return (
     <Stack h="100%" gap={0} pos="relative">

packages/widgets/src/downloads/component.tsx

@@ -54,7 +54,8 @@ import { useCurrentIntlLocale, useI18n } from "@homarr/translation/client";
 
 import type { WidgetComponentProps } from "../definition";
 import { IntegrationErrorIndicator } from "../common/integration-error-indicator";
-import { getUsableWidgetQueryData } from "../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../common/query-state";
+import { WidgetQueryLoadingState } from "../common/query-state-indicator";
 import { HomarrDataTable } from "../common/homarr-data-table";
 import { formatLocalizedDateTime } from "../common/locale";
 import { usePersistedTableLayout, useTableLayoutPersistence } from "../common/use-persisted-table-layout";
@@ -741,6 +742,8 @@ export default function DownloadClientsWidget({
     );
   }
 
+  if (isInitialWidgetQueryPending(downloadsQuery)) return <WidgetQueryLoadingState />;
+
   let rowContextMenuHandler: typeof handleContextMenu | undefined = handleContextMenu;
   if (isEditMode) rowContextMenuHandler = undefined;
 

packages/widgets/src/index.tsx

@@ -3,9 +3,7 @@ import type { Loader } from "next/dynamic";
 import dynamic from "next/dynamic";
 import { Center, Loader as UiLoader } from "@mantine/core";
 
-import { objectEntries } from "@homarr/common";
 import type { IntegrationKind, WidgetKind } from "@homarr/definitions";
-import type { SettingsContextProps } from "@homarr/settings/creator";
 
 import * as anchorNote from "./anchor-note";
 import * as audioStats from "./audio-stats";
@@ -41,7 +39,6 @@ import * as notebook from "./notebook";
 import * as paperlessNgx from "./paperless-ngx";
 import * as patchmon from "./patchmon";
 import * as notifications from "./notifications";
-import type { WidgetOptionDefinition } from "./options";
 import * as releases from "./releases";
 import * as rssFeed from "./rssFeed";
 import * as smartHomeEntityState from "./smart-home/entity-state";
@@ -191,19 +188,3 @@ export type inferSupportedIntegrationsStrict<TKind extends WidgetKind> = (Widget
 }
   ? WidgetImports[TKind]["definition"]["supportedIntegrations"]
   : never[])[number];
-
-export const reduceWidgetOptionsWithDefaultValues = (
-  kind: WidgetKind,
-  settings: Pick<SettingsContextProps, "enableStatusByDefault" | "forceDisableStatus">,
-  currentValue: Record<string, unknown> = {},
-) => {
-  const definition = widgetImports[kind].definition;
-  const options = definition.createOptions(settings) as Record<string, WidgetOptionDefinition>;
-  return objectEntries(options).reduce(
-    (prev, [key, value]) => ({
-      ...prev,
-      [key]: currentValue[key] ?? value.defaultValue,
-    }),
-    {} as Record<string, unknown>,
-  );
-};

packages/widgets/src/media-requests/list/component.tsx

@@ -15,7 +15,8 @@ import { useI18n } from "@homarr/translation/client";
 
 import { WidgetEmptyState } from "../../common/empty-state";
 import { getSafeApplicationUrl, SAFE_NEW_TAB_REL } from "../../common/application-url";
-import { getUsableWidgetQueryData } from "../../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../../common/query-state";
+import { WidgetQueryLoadingState } from "../../common/query-state-indicator";
 import actionTargetClasses from "../../common/action-target.module.css";
 import { IntegrationErrorIndicator } from "../../common/integration-error-indicator";
 import type { WidgetComponentProps } from "../../definition";
@@ -35,17 +36,17 @@ export default function MediaServerWidget({
       .filter(({ id }) => integrationIds.includes(id))
       .map(({ id }) => id),
   );
-  const mediaRequestData = getUsableWidgetQueryData(
-    clientApi.widget.mediaRequests.getLatestRequests.useQuery({
-      integrationIds,
-      statuses:
-        options.statusFilter.length > 0
-          ? options.statusFilter
-          : ["pending", "approved", "declined", "failed", "completed"],
-      recentDays: options.recentDays,
-    }),
-  );
+  const mediaRequestQuery = clientApi.widget.mediaRequests.getLatestRequests.useQuery({
+    integrationIds,
+    statuses:
+      options.statusFilter.length > 0
+        ? options.statusFilter
+        : ["pending", "approved", "declined", "failed", "completed"],
+    recentDays: options.recentDays,
+  });
+  const mediaRequestData = getUsableWidgetQueryData(mediaRequestQuery);
 
+  if (isInitialWidgetQueryPending(mediaRequestQuery)) return <WidgetQueryLoadingState />;
   if (!mediaRequestData) return <WidgetEmptyState />;
   const { requests: mediaRequests, failedIntegrations } = mediaRequestData;
   if (mediaRequests.length === 0 && failedIntegrations.length === 0) throw new NoIntegrationDataError();

packages/widgets/src/media-requests/stats/component.tsx

@@ -23,7 +23,8 @@ import { useI18n } from "@homarr/translation/client";
 
 import { WidgetEmptyState } from "../../common/empty-state";
 import { getSafeApplicationUrl, SAFE_NEW_TAB_REL } from "../../common/application-url";
-import { getUsableWidgetQueryData } from "../../common/query-state";
+import { getUsableWidgetQueryData, isInitialWidgetQueryPending } from "../../common/query-state";
+import { WidgetQueryLoadingState } from "../../common/query-state-indicator";
 import actionTargetClasses from "../../common/action-target.module.css";
 import { IntegrationErrorIndicator } from "../../common/integration-error-indicator";
 import type { WidgetComponentProps } from "../../definition";
@@ -42,10 +43,12 @@ export default function MediaServerWidget({
 }: WidgetComponentProps<"mediaRequests-requestStats">) {
   const t = useI18n("widget.mediaRequests-requestStats");
   const tCommon = useI18n("common");
-  const requestStats = getUsableWidgetQueryData(clientApi.widget.mediaRequests.getStats.useQuery({ integrationIds }));
+  const requestStatsQuery = clientApi.widget.mediaRequests.getStats.useQuery({ integrationIds });
+  const requestStats = getUsableWidgetQueryData(requestStatsQuery);
 
   const board = useRequiredBoard();
 
+  if (isInitialWidgetQueryPending(requestStatsQuery)) return <WidgetQueryLoadingState />;
   if (!requestStats) return <WidgetEmptyState />;
   if (
     requestStats.users.length === 0 &&

pnpm-lock.yaml

@@ -201,6 +201,9 @@ catalogs:
     '@tanstack/react-query-next-experimental':
       specifier: ^5.101.2
       version: 5.101.2
+    '@tanstack/react-query-persist-client':
+      specifier: ^5.101.2
+      version: 5.101.2
     '@testcontainers/mysql':
       specifier: ^12.0.4
       version: 12.0.4
@@ -1142,6 +1145,9 @@ importers:
       '@tanstack/react-query-next-experimental':
         specifier: 'catalog:'
         version: 5.101.2(@tanstack/react-query@5.101.2(react@19.2.7))(next@16.3.1(@babel/core@7.29.0(supports-color@10.2.2))(@opentelemetry/api@1.9.0)(@playwright/test@1.61.1)(@types/node@24.13.3)(babel-plugin-react-compiler@1.0.0)(react-dom@19.2.7(react@19.2.7))(react@19.2.7)(sass@1.101.0))(react@19.2.7)
+      '@tanstack/react-query-persist-client':
+        specifier: 'catalog:'
+        version: 5.101.2(@tanstack/react-query@5.101.2(react@19.2.7))(react@19.2.7)
       '@trpc/client':
         specifier: 'catalog:'
         version: 11.18.0(@trpc/server@11.18.0(typescript@7.0.2))(typescript@7.0.2)
@@ -8831,6 +8837,9 @@ packages:
   '@tanstack/query-devtools@5.101.2':
     resolution: {integrity: sha512-o+wHcqgN7Pp0s8v1i0UGq/ZrrEKrxdIiMQmKRdYb2w7NPtylYSJ4+wg/tIn71m9DLstwUwdEGAvROdly6HXP6w==}
 
+  '@tanstack/query-persist-client-core@5.101.2':
+    resolution: {integrity: sha512-rgMsbvBVpSPDUsprC9FYxojdG0Q1LH6yq1i3DXz2aps4VEqv2l4Msj3YDqIifU3xkl/DrYe9YWntZAJLrM6xTg==}
+
   '@tanstack/react-devtools@0.10.9':
     resolution: {integrity: sha512-lS6mtccEmUaodsWiRORGM/MGKT0jgzcy5v+eY6pzOPxEgzTHUDhca+WGxShFqKxmF4oneRxXjww1gkvMrWq6uw==}
     engines: {node: '>=18'}
@@ -8853,6 +8862,12 @@ packages:
       next: ^13 || ^14 || ^15 || ^16
       react: ^18 || ^19
 
+  '@tanstack/react-query-persist-client@5.101.2':
+    resolution: {integrity: sha512-19UpaRtf0lvB2QAJ2MoixxtGf3osMOd508g99EsttUj4+3eLs+ulnNgYjB7AkQMHrRlcbVXqpVNqWkB4a7g8Zw==}
+    peerDependencies:
+      '@tanstack/react-query': ^5.101.2
+      react: ^18 || ^19
+
   '@tanstack/react-query@5.101.2':
     resolution: {integrity: sha512-seDkr6kzGzX1okaaTtZPtgA688CDPlXUz1C6xSg0ESqn04Vuc8tlrYms1s3de+znBqhPVxFRfpAfUf+6XvfPWg==}
     peerDependencies:
@@ -23923,6 +23938,10 @@ snapshots:
 
   '@tanstack/query-devtools@5.101.2': {}
 
+  '@tanstack/query-persist-client-core@5.101.2':
+    dependencies:
+      '@tanstack/query-core': 5.101.2
+
   '@tanstack/react-devtools@0.10.9(@types/react-dom@19.2.3(@types/react@19.2.17))(@types/react@19.2.17)(csstype@3.2.3)(react-dom@19.2.7(react@19.2.7))(react@19.2.7)(solid-js@1.9.14)':
     dependencies:
       '@tanstack/devtools': 0.13.0(csstype@3.2.3)(solid-js@1.9.14)
@@ -23948,6 +23967,12 @@ snapshots:
       next: 16.3.1(@babel/core@7.29.0(supports-color@10.2.2))(@opentelemetry/api@1.9.0)(@playwright/test@1.61.1)(@types/node@24.13.3)(babel-plugin-react-compiler@1.0.0)(react-dom@19.2.7(react@19.2.7))(react@19.2.7)(sass@1.101.0)
       react: 19.2.7
 
+  '@tanstack/react-query-persist-client@5.101.2(@tanstack/react-query@5.101.2(react@19.2.7))(react@19.2.7)':
+    dependencies:
+      '@tanstack/query-persist-client-core': 5.101.2
+      '@tanstack/react-query': 5.101.2(react@19.2.7)
+      react: 19.2.7
+
   '@tanstack/react-query@5.101.2(react@19.2.7)':
     dependencies:
       '@tanstack/query-core': 5.101.2

pnpm-workspace.yaml

@@ -63,6 +63,7 @@ catalog:
   "@tanstack/react-query": ^5.101.2
   "@tanstack/react-query-devtools": ^5.101.2
   "@tanstack/react-query-next-experimental": ^5.101.2
+  "@tanstack/react-query-persist-client": ^5.101.2
   "@testcontainers/mysql": ^12.0.4
   "@testcontainers/postgresql": ^12.0.4
   "@testcontainers/redis": ^12.0.4