feat: restore last workspace on cold start

Persist the user's last active workspace and navigate directly to it
on cold start instead of always landing on the open-project screen.

- Unified bootstrap into one cross-platform wait step after
  platform-specific connection setup
- Store-level wait with workspace preference: preferred host online
  resolves immediately, grace period if a different host connects
  first, bounded 5s timeout for unreachable hosts
- index.tsx is fully declarative — reads resolved target from context,
  no useEffect/promises/refs/timers

packages/app/src/app/_layout.tsx

@@ -48,7 +48,7 @@ import {
 import { SidebarCalloutProvider } from "@/contexts/sidebar-callout-context";
 import { ToastProvider } from "@/contexts/toast-context";
 import { VoiceProvider } from "@/contexts/voice-context";
-import { initializeHostRuntime } from "@/app/host-runtime-bootstrap";
+import { initializeHostRuntime, type StartupNavigationTarget } from "@/app/host-runtime-bootstrap";
 import { shouldUseDesktopDaemon } from "@/desktop/daemon/desktop-daemon";
 import { listenToDesktopEvent } from "@/desktop/electron/events";
 import { updateDesktopWindowControls } from "@/desktop/electron/window";
@@ -73,7 +73,10 @@ import {
 } from "@/runtime/host-runtime";
 import {
   addBrowserActiveWorkspaceLocationListener,
+  getLastNavigationWorkspaceRouteSelection,
+  hydrateLastNavigationWorkspaceRouteSelection,
   syncNavigationActiveWorkspace,
+  type ActiveWorkspaceSelection,
 } from "@/stores/navigation-active-workspace-store";
 import { usePanelStore } from "@/stores/panel-store";
 import { useSessionStore } from "@/stores/session-store";
@@ -103,14 +106,21 @@ export interface HostRuntimeBootstrapState {
   phase: "starting-daemon" | "connecting" | "online" | "error";
   error: string | null;
   retry: () => void;
+  startupNavigation: HostRuntimeStartupNavigation | null;
 }
 
 const HostRuntimeBootstrapContext = createContext<HostRuntimeBootstrapState>({
   phase: "starting-daemon",
   error: null,
   retry: () => {},
+  startupNavigation: null,
 });
 
+export interface HostRuntimeStartupNavigation {
+  target: StartupNavigationTarget;
+  workspaceSelection: ActiveWorkspaceSelection | null;
+}
+
 function PushNotificationRouter() {
   const router = useRouter();
   const pathname = usePathname();
@@ -272,33 +282,49 @@ function HostRuntimeBootstrapProvider({ children }: { children: ReactNode }) {
   );
   const [error, setError] = useState<string | null>(null);
   const [retryToken, setRetryToken] = useState(0);
+  const [startupNavigation, setStartupNavigation] = useState<HostRuntimeStartupNavigation | null>(
+    null,
+  );
   const retry = useCallback(() => {
     setPhase("starting-daemon");
     setError(null);
+    setStartupNavigation(null);
     setRetryToken((current) => current + 1);
   }, []);
 
   useEffect(() => {
     let cancelled = false;
-    let cancelInitialization: (() => void) | null = null;
+    let startupWorkspaceSelection: ActiveWorkspaceSelection | null = null;
+    const abortController = new AbortController();
     const shouldManageDesktop = shouldUseDesktopDaemon();
     const store = getHostRuntimeStore();
+    setStartupNavigation(null);
+
+    const loadStartupWorkspaceSelection = async (): Promise<ActiveWorkspaceSelection | null> => {
+      await hydrateLastNavigationWorkspaceRouteSelection();
+      startupWorkspaceSelection = getLastNavigationWorkspaceRouteSelection();
+      return startupWorkspaceSelection;
+    };
 
     void initializeHostRuntime({
       shouldManageDesktop,
       loadSettings: loadSettingsFromStorage,
+      loadStartupWorkspaceSelection,
       store,
       setPhase,
       setError,
       isCancelled: () => cancelled,
+      signal: abortController.signal,
     })
-      .then((cleanup) => {
+      .then((target) => {
         if (cancelled) {
-          cleanup();
-          return cleanup;
+          return undefined;
         }
-        cancelInitialization = cleanup;
-        return cleanup;
+        setStartupNavigation({
+          target,
+          workspaceSelection: startupWorkspaceSelection,
+        });
+        return undefined;
       })
       .catch((bootstrapError) => {
         console.error("[HostRuntime] Failed to initialize store", bootstrapError);
@@ -314,11 +340,15 @@ function HostRuntimeBootstrapProvider({ children }: { children: ReactNode }) {
         }
         setPhase("online");
         setError(null);
+        setStartupNavigation({
+          target: null,
+          workspaceSelection: startupWorkspaceSelection,
+        });
       });
 
     return () => {
       cancelled = true;
-      cancelInitialization?.();
+      abortController.abort();
     };
   }, [retryToken]);
 
@@ -327,8 +357,9 @@ function HostRuntimeBootstrapProvider({ children }: { children: ReactNode }) {
       phase,
       error,
       retry,
+      startupNavigation,
     }),
-    [error, phase, retry],
+    [error, phase, retry, startupNavigation],
   );
 
   return (

packages/app/src/app/host-runtime-bootstrap.test.ts

@@ -1,103 +1,247 @@
 import { describe, expect, it, vi } from "vitest";
 import { initializeHostRuntime } from "./host-runtime-bootstrap";
 
-describe("initializeHostRuntime", () => {
-  it("uses effective desktop settings to skip desktop-managed bootstrap when daemon management is disabled", async () => {
-    const loadFromStorage = vi.fn(async () => {});
-    const bootstrap = vi.fn(async () => {});
-    const bootstrapDesktop = vi.fn(async () => ({
+type BootstrapStore = Parameters<typeof initializeHostRuntime>[0]["store"];
+
+function createSettings(input: { manageBuiltInDaemon: boolean }) {
+  return {
+    theme: "auto" as const,
+    sendBehavior: "interrupt" as const,
+    manageBuiltInDaemon: input.manageBuiltInDaemon,
+    releaseChannel: "stable" as const,
+  };
+}
+
+function createDeferred<T>() {
+  let resolve!: (value: T | PromiseLike<T>) => void;
+  const promise = new Promise<T>((res) => {
+    resolve = res;
+  });
+  return { promise, resolve };
+}
+
+function createStore(overrides: Partial<BootstrapStore> = {}): BootstrapStore {
+  return {
+    loadFromStorage: vi.fn(async () => {}),
+    bootstrap: vi.fn(async () => {}),
+    bootstrapDesktop: vi.fn(async () => ({
       ok: true as const,
       listenAddress: "127.0.0.1:6767",
       serverId: "srv_test",
       hostname: "test",
-    }));
-    const addConnectionFromListenAndWaitForOnline = vi.fn(async () => {});
+    })),
+    addConnectionFromListenAndWaitForOnline: vi.fn(async () => {}),
+    waitForAnyConnectionOnline: vi.fn(() => ({
+      promise: Promise.resolve({ serverId: "srv_test" }),
+      cancel: vi.fn(),
+    })),
+    ...overrides,
+  };
+}
+
+describe("initializeHostRuntime", () => {
+  it("uses effective desktop settings to skip desktop-managed bootstrap when daemon management is disabled", async () => {
+    const store = createStore();
     const setPhase = vi.fn();
     const setError = vi.fn();
 
-    await initializeHostRuntime({
+    const target = await initializeHostRuntime({
       shouldManageDesktop: true,
-      loadSettings: async () => ({
-        theme: "auto",
-        sendBehavior: "interrupt",
-        manageBuiltInDaemon: false,
-        releaseChannel: "stable",
-      }),
-      store: {
-        loadFromStorage,
-        bootstrap,
-        bootstrapDesktop,
-        addConnectionFromListenAndWaitForOnline,
-        waitForAnyConnectionOnline: () => ({
-          promise: new Promise<{ type: "online" }>(() => {}),
-          cancel: vi.fn(),
-        }),
-      },
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: false }),
+      loadStartupWorkspaceSelection: async () => null,
+      store,
       setPhase,
       setError,
       isCancelled: () => false,
     });
 
-    expect(bootstrap).toHaveBeenCalledWith({ manageBuiltInDaemon: false });
+    expect(store.bootstrap).toHaveBeenCalledWith({ manageBuiltInDaemon: false });
+    expect(store.bootstrapDesktop).not.toHaveBeenCalled();
+    expect(target).toEqual({ serverId: "srv_test" });
     expect(setPhase).toHaveBeenLastCalledWith("online");
     expect(setError).toHaveBeenLastCalledWith(null);
   });
 
-  it("does not regress the phase to connecting when anyOnline wins the race before bootstrapDesktop returns", async () => {
-    let resolveBootstrapDesktop!: () => void;
-    const bootstrapDesktopGate = new Promise<void>((resolve) => {
-      resolveBootstrapDesktop = resolve;
+  it("waits for any saved host after non-managed connection setup before setting online", async () => {
+    const events: string[] = [];
+    const wait = createDeferred<{ serverId: string } | null>();
+    const store = createStore({
+      bootstrap: vi.fn(async () => {
+        events.push("bootstrap");
+      }),
+      waitForAnyConnectionOnline: vi.fn(() => {
+        events.push("wait");
+        return {
+          promise: wait.promise,
+          cancel: vi.fn(),
+        };
+      }),
     });
-
-    let resolveAddConnection!: () => void;
-    const addConnectionCompleted = new Promise<void>((resolve) => {
-      resolveAddConnection = resolve;
-    });
-
-    const setPhase = vi.fn();
-    const setError = vi.fn();
+    const setPhase = vi.fn((phase: string) => events.push(`phase:${phase}`));
 
     const initPromise = initializeHostRuntime({
-      shouldManageDesktop: true,
-      loadSettings: async () => ({
-        theme: "auto",
-        sendBehavior: "interrupt",
-        manageBuiltInDaemon: true,
-        releaseChannel: "stable",
-      }),
-      store: {
-        loadFromStorage: async () => {},
-        bootstrap: async () => {},
-        bootstrapDesktop: async () => {
-          await bootstrapDesktopGate;
-          return {
-            ok: true as const,
-            listenAddress: "127.0.0.1:6767",
-            serverId: "srv_test",
-            hostname: "test",
-          };
-        },
-        addConnectionFromListenAndWaitForOnline: async () => {
-          resolveAddConnection();
-        },
-        waitForAnyConnectionOnline: () => ({
-          promise: Promise.resolve(),
-          cancel: vi.fn(),
-        }),
+      shouldManageDesktop: false,
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: false }),
+      loadStartupWorkspaceSelection: async () => {
+        events.push("read-workspace-selection");
+        return null;
       },
+      store,
       setPhase,
-      setError,
+      setError: vi.fn(),
       isCancelled: () => false,
     });
 
-    await initPromise;
-    expect(setPhase).toHaveBeenLastCalledWith("online");
+    await vi.waitFor(() => {
+      expect(events).toEqual(["phase:connecting", "bootstrap", "read-workspace-selection", "wait"]);
+    });
+    expect(setPhase).not.toHaveBeenCalledWith("online");
 
-    resolveBootstrapDesktop();
-    await addConnectionCompleted;
-    await new Promise((resolve) => setTimeout(resolve, 0));
-
-    expect(setPhase).not.toHaveBeenCalledWith("connecting");
+    wait.resolve({ serverId: "srv_saved" });
+    await expect(initPromise).resolves.toEqual({ serverId: "srv_saved" });
     expect(setPhase).toHaveBeenLastCalledWith("online");
   });
+
+  it("passes the startup workspace server id into the shared wait", async () => {
+    const store = createStore();
+
+    await initializeHostRuntime({
+      shouldManageDesktop: false,
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: false }),
+      loadStartupWorkspaceSelection: async () => ({
+        serverId: "srv_workspace",
+        workspaceId: "workspace-1",
+      }),
+      store,
+      setPhase: vi.fn(),
+      setError: vi.fn(),
+      isCancelled: () => false,
+    });
+
+    expect(store.waitForAnyConnectionOnline).toHaveBeenCalledWith({
+      preferredServerId: "srv_workspace",
+    });
+  });
+
+  it("passes a null preference into the shared wait when no startup workspace is persisted", async () => {
+    const store = createStore();
+
+    await initializeHostRuntime({
+      shouldManageDesktop: false,
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: false }),
+      loadStartupWorkspaceSelection: async () => null,
+      store,
+      setPhase: vi.fn(),
+      setError: vi.fn(),
+      isCancelled: () => false,
+    });
+
+    expect(store.waitForAnyConnectionOnline).toHaveBeenCalledWith({ preferredServerId: null });
+  });
+
+  it("uses desktop daemon startup only as the managed connection producer before the shared wait", async () => {
+    const events: string[] = [];
+    const store = createStore({
+      bootstrapDesktop: vi.fn(async () => {
+        events.push("bootstrap-desktop");
+        return {
+          ok: true as const,
+          listenAddress: "127.0.0.1:6767",
+          serverId: "srv_desktop",
+          hostname: "desktop",
+        };
+      }),
+      addConnectionFromListenAndWaitForOnline: vi.fn(async () => {
+        events.push("add-connection");
+      }),
+      waitForAnyConnectionOnline: vi.fn(() => {
+        events.push("wait");
+        return {
+          promise: Promise.resolve({ serverId: "srv_desktop" }),
+          cancel: vi.fn(),
+        };
+      }),
+    });
+    const setPhase = vi.fn((phase: string) => events.push(`phase:${phase}`));
+
+    const target = await initializeHostRuntime({
+      shouldManageDesktop: true,
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: true }),
+      loadStartupWorkspaceSelection: async () => {
+        events.push("read-workspace-selection");
+        return null;
+      },
+      store,
+      setPhase,
+      setError: vi.fn(),
+      isCancelled: () => false,
+    });
+
+    expect(target).toEqual({ serverId: "srv_desktop" });
+    expect(events).toEqual([
+      "phase:starting-daemon",
+      "bootstrap-desktop",
+      "phase:connecting",
+      "add-connection",
+      "read-workspace-selection",
+      "wait",
+      "phase:online",
+    ]);
+    expect(store.bootstrap).not.toHaveBeenCalled();
+  });
+
+  it("returns null without waiting when there are no saved hosts", async () => {
+    const store = createStore({
+      waitForAnyConnectionOnline: vi.fn(() => ({
+        promise: Promise.resolve(null),
+        cancel: vi.fn(),
+      })),
+    });
+
+    const target = await initializeHostRuntime({
+      shouldManageDesktop: false,
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: false }),
+      loadStartupWorkspaceSelection: async () => null,
+      store,
+      setPhase: vi.fn(),
+      setError: vi.fn(),
+      isCancelled: () => false,
+    });
+
+    expect(target).toBeNull();
+    expect(store.waitForAnyConnectionOnline).toHaveBeenCalledWith({ preferredServerId: null });
+  });
+
+  it("cancels the shared wait while initialization is still pending", async () => {
+    const abortController = new AbortController();
+    const wait = createDeferred<{ serverId: string } | null>();
+    const cancel = vi.fn();
+    const store = createStore({
+      waitForAnyConnectionOnline: vi.fn(() => ({
+        promise: wait.promise,
+        cancel,
+      })),
+    });
+    const setPhase = vi.fn();
+
+    const initPromise = initializeHostRuntime({
+      shouldManageDesktop: false,
+      loadSettings: async () => createSettings({ manageBuiltInDaemon: false }),
+      loadStartupWorkspaceSelection: async () => null,
+      store,
+      setPhase,
+      setError: vi.fn(),
+      isCancelled: () => true,
+      signal: abortController.signal,
+    });
+
+    await vi.waitFor(() => {
+      expect(store.waitForAnyConnectionOnline).toHaveBeenCalled();
+    });
+    abortController.abort();
+
+    await expect(initPromise).resolves.toBeNull();
+    expect(cancel).toHaveBeenCalledTimes(1);
+    expect(setPhase).not.toHaveBeenCalledWith("online");
+  });
 });

packages/app/src/app/host-runtime-bootstrap.ts

@@ -1,8 +1,15 @@
 import type { HostRuntimeBootstrapResult } from "@/runtime/host-runtime";
 import type { Settings } from "@/hooks/use-settings";
+import type { ActiveWorkspaceSelection } from "@/stores/navigation-active-workspace-store";
+import {
+  getLastNavigationWorkspaceRouteSelection,
+  hydrateLastNavigationWorkspaceRouteSelection,
+} from "@/stores/navigation-active-workspace-store";
 
 type HostRuntimeBootstrapPhase = "starting-daemon" | "connecting" | "online" | "error";
 
+export type StartupNavigationTarget = { serverId: string } | null;
+
 interface HostRuntimeBootstrapStore {
   loadFromStorage: () => Promise<void>;
   bootstrap: (options?: { manageBuiltInDaemon?: boolean }) => Promise<void>;
@@ -12,8 +19,8 @@ interface HostRuntimeBootstrapStore {
     serverId: string;
     hostname: string | null;
   }) => Promise<unknown>;
-  waitForAnyConnectionOnline: () => {
-    promise: Promise<unknown>;
+  waitForAnyConnectionOnline: (input?: { preferredServerId?: string | null }) => {
+    promise: Promise<StartupNavigationTarget>;
     cancel: () => void;
   };
 }
@@ -21,12 +28,23 @@ interface HostRuntimeBootstrapStore {
 export async function initializeHostRuntime(args: {
   shouldManageDesktop: boolean;
   loadSettings: () => Promise<Settings>;
+  loadStartupWorkspaceSelection?: () => Promise<ActiveWorkspaceSelection | null>;
   store: HostRuntimeBootstrapStore;
   setPhase: (phase: HostRuntimeBootstrapPhase) => void;
   setError: (error: string | null) => void;
   isCancelled: () => boolean;
-}): Promise<() => void> {
-  const { shouldManageDesktop, loadSettings, store, setPhase, setError, isCancelled } = args;
+  signal?: AbortSignal;
+}): Promise<StartupNavigationTarget> {
+  const {
+    shouldManageDesktop,
+    loadSettings,
+    loadStartupWorkspaceSelection = readStartupWorkspaceSelection,
+    store,
+    setPhase,
+    setError,
+    isCancelled,
+    signal,
+  } = args;
 
   const settings = await loadSettings();
   const isDesktopManaged = shouldManageDesktop && settings.manageBuiltInDaemon;
@@ -36,63 +54,115 @@ export async function initializeHostRuntime(args: {
     setPhase("connecting");
     setError(null);
     await store.bootstrap({ manageBuiltInDaemon: settings.manageBuiltInDaemon });
-    if (!isCancelled()) {
-      setPhase("online");
-      setError(null);
+  } else {
+    const setupResult = await setupDesktopManagedConnection({
+      store,
+      setPhase,
+      setError,
+      isCancelled,
+    });
+    if (setupResult.type === "error") {
+      return null;
     }
-    return () => {};
   }
 
+  const startupWorkspaceSelection = await loadStartupWorkspaceSelection();
+
+  const target = await waitForStartupNavigationTarget({
+    store,
+    preferredServerId: startupWorkspaceSelection?.serverId ?? null,
+    signal,
+  });
+
+  if (!isCancelled()) {
+    setPhase("online");
+    setError(null);
+  }
+
+  return target;
+}
+
+async function setupDesktopManagedConnection(input: {
+  store: HostRuntimeBootstrapStore;
+  setPhase: (phase: HostRuntimeBootstrapPhase) => void;
+  setError: (error: string | null) => void;
+  isCancelled: () => boolean;
+}): Promise<BootstrapOutcome> {
+  const { store, setPhase, setError, isCancelled } = input;
+
   setPhase("starting-daemon");
   setError(null);
 
-  let raceSettled = false;
-  const anyOnline = store.waitForAnyConnectionOnline();
-
-  const bootstrapPromise = (async (): Promise<BootstrapOutcome> => {
-    try {
-      const bootstrapResult = await store.bootstrapDesktop();
-      if (!bootstrapResult.ok) {
-        return { type: "error", error: bootstrapResult.error };
+  try {
+    const bootstrapResult = await store.bootstrapDesktop();
+    if (!bootstrapResult.ok) {
+      if (!isCancelled()) {
+        setPhase("error");
+        setError(bootstrapResult.error);
       }
-      if (!isCancelled() && !raceSettled) {
-        setPhase("connecting");
-      }
-      await store.addConnectionFromListenAndWaitForOnline({
-        listenAddress: bootstrapResult.listenAddress,
-        serverId: bootstrapResult.serverId,
-        hostname: bootstrapResult.hostname,
-      });
-      return { type: "online" };
-    } catch (error) {
-      return {
-        type: "error",
-        error: error instanceof Error ? error.message : String(error),
-      };
+      return { type: "error", error: bootstrapResult.error };
     }
-  })();
 
-  const onlineFromAny: Promise<BootstrapOutcome> = anyOnline.promise.then(() => ({
-    type: "online",
-  }));
-  const result = await Promise.race([onlineFromAny, bootstrapPromise]);
-
-  raceSettled = true;
-  anyOnline.cancel();
-
-  if (!isCancelled()) {
-    if (result.type === "online") {
-      setPhase("online");
-      setError(null);
-    } else {
+    if (!isCancelled()) {
+      setPhase("connecting");
+    }
+    await store.addConnectionFromListenAndWaitForOnline({
+      listenAddress: bootstrapResult.listenAddress,
+      serverId: bootstrapResult.serverId,
+      hostname: bootstrapResult.hostname,
+    });
+    return { type: "online" };
+  } catch (error) {
+    const message = error instanceof Error ? error.message : String(error);
+    if (!isCancelled()) {
       setPhase("error");
-      setError(result.error);
+      setError(message);
     }
+    return { type: "error", error: message };
+  }
+}
+
+function waitForStartupNavigationTarget(input: {
+  store: HostRuntimeBootstrapStore;
+  preferredServerId: string | null;
+  signal?: AbortSignal;
+}): Promise<StartupNavigationTarget> {
+  const { store, preferredServerId, signal } = input;
+
+  if (signal?.aborted) {
+    return Promise.resolve(null);
   }
 
-  return () => {
-    anyOnline.cancel();
-  };
+  const onlineWait = store.waitForAnyConnectionOnline({ preferredServerId });
+
+  return new Promise<StartupNavigationTarget>((resolve) => {
+    let settled = false;
+
+    const settle = (target: StartupNavigationTarget): void => {
+      if (settled) {
+        return;
+      }
+      settled = true;
+      signal?.removeEventListener("abort", abort);
+      onlineWait.cancel();
+      resolve(target);
+    };
+
+    const abort = (): void => {
+      settle(null);
+    };
+
+    signal?.addEventListener("abort", abort, { once: true });
+    onlineWait.promise.then((target) => {
+      settle(target);
+      return undefined;
+    });
+  });
 }
 
 type BootstrapOutcome = { type: "online" } | { type: "error"; error: string };
+
+async function readStartupWorkspaceSelection(): Promise<ActiveWorkspaceSelection | null> {
+  await hydrateLastNavigationWorkspaceRouteSelection();
+  return getLastNavigationWorkspaceRouteSelection();
+}

packages/app/src/app/index.test.tsx

@@ -0,0 +1,157 @@
+/**
+ * @vitest-environment jsdom
+ */
+import React from "react";
+import { act } from "@testing-library/react";
+import { createRoot, type Root } from "react-dom/client";
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import type { HostRuntimeBootstrapState } from "./_layout";
+
+const { redirectMock, runtimeStoreAccessMock, workspaceStoreAccessMock, state } = vi.hoisted(() => {
+  const hoistedState = {
+    pathname: "/",
+    storeReady: true,
+    bootstrapState: {
+      phase: "online",
+      error: null,
+      retry: vi.fn(),
+      startupNavigation: null,
+    } as HostRuntimeBootstrapState,
+  };
+
+  return {
+    redirectMock: vi.fn(),
+    runtimeStoreAccessMock: vi.fn(() => {
+      throw new Error("index.tsx must not read the host runtime store during startup navigation");
+    }),
+    workspaceStoreAccessMock: vi.fn(() => {
+      throw new Error(
+        "index.tsx must not read the navigation workspace store during startup navigation",
+      );
+    }),
+    state: hoistedState,
+  };
+});
+
+vi.mock("expo-router", () => ({
+  Redirect: ({ href }: { href: string }) => {
+    redirectMock(href);
+    return React.createElement("div", { "data-testid": "redirect", "data-href": href });
+  },
+  usePathname: () => state.pathname,
+}));
+
+vi.mock("@/app/_layout", () => ({
+  useHostRuntimeBootstrapState: () => state.bootstrapState,
+  useStoreReady: () => state.storeReady,
+}));
+
+vi.mock("@/runtime/host-runtime", () => ({
+  getHostRuntimeStore: runtimeStoreAccessMock,
+}));
+
+vi.mock("@/desktop/daemon/desktop-daemon", () => ({
+  shouldUseDesktopDaemon: () => false,
+}));
+
+vi.mock("@/screens/startup-splash-screen", () => ({
+  StartupSplashScreen: () => React.createElement("div", { "data-testid": "startup-splash" }),
+}));
+
+vi.mock("@/stores/navigation-active-workspace-store", () => ({
+  getLastNavigationWorkspaceRouteSelection: workspaceStoreAccessMock,
+  useIsLastNavigationWorkspaceRouteSelectionLoaded: workspaceStoreAccessMock,
+}));
+
+describe("Index route startup navigation", () => {
+  let container: HTMLDivElement;
+  let root: Root;
+
+  beforeEach(() => {
+    vi.resetModules();
+    state.pathname = "/";
+    state.storeReady = true;
+    state.bootstrapState = {
+      phase: "online",
+      error: null,
+      retry: vi.fn(),
+      startupNavigation: null,
+    };
+    redirectMock.mockReset();
+    runtimeStoreAccessMock.mockClear();
+    workspaceStoreAccessMock.mockClear();
+
+    container = document.createElement("div");
+    document.body.appendChild(container);
+    root = createRoot(container);
+  });
+
+  afterEach(() => {
+    act(() => {
+      root.unmount();
+    });
+    container.remove();
+  });
+
+  async function renderIndex() {
+    const { default: Index } = await import("./index");
+    await act(async () => {
+      root.render(<Index />);
+    });
+  }
+
+  it("shows the startup splash until bootstrap has resolved the startup navigation target", async () => {
+    await renderIndex();
+
+    expect(container.querySelector("[data-testid='startup-splash']")).not.toBeNull();
+    expect(redirectMock).not.toHaveBeenCalled();
+    expect(runtimeStoreAccessMock).not.toHaveBeenCalled();
+    expect(workspaceStoreAccessMock).not.toHaveBeenCalled();
+  });
+
+  it("restores the persisted workspace when the startup target matches its host", async () => {
+    state.bootstrapState.startupNavigation = {
+      target: { serverId: "server-1" },
+      workspaceSelection: { serverId: "server-1", workspaceId: "workspace-a" },
+    };
+
+    await renderIndex();
+
+    expect(redirectMock).toHaveBeenCalledWith("/h/server-1/workspace/workspace-a");
+    expect(runtimeStoreAccessMock).not.toHaveBeenCalled();
+    expect(workspaceStoreAccessMock).not.toHaveBeenCalled();
+  });
+
+  it("navigates to the startup host root when it differs from the persisted workspace host", async () => {
+    state.bootstrapState.startupNavigation = {
+      target: { serverId: "server-2" },
+      workspaceSelection: { serverId: "server-1", workspaceId: "workspace-a" },
+    };
+
+    await renderIndex();
+
+    expect(redirectMock).toHaveBeenCalledWith("/h/server-2");
+  });
+
+  it("navigates to the startup host root when no persisted workspace exists", async () => {
+    state.bootstrapState.startupNavigation = {
+      target: { serverId: "server-2" },
+      workspaceSelection: null,
+    };
+
+    await renderIndex();
+
+    expect(redirectMock).toHaveBeenCalledWith("/h/server-2");
+  });
+
+  it("falls back to welcome when bootstrap resolves no startup target", async () => {
+    state.bootstrapState.startupNavigation = {
+      target: null,
+      workspaceSelection: null,
+    };
+
+    await renderIndex();
+
+    expect(redirectMock).toHaveBeenCalledWith("/welcome");
+  });
+});

packages/app/src/app/index.tsx

@@ -1,42 +1,58 @@
-import { useEffect, useSyncExternalStore } from "react";
-import { usePathname, useRouter } from "expo-router";
+import React from "react";
+import { Redirect, usePathname, type Href } from "expo-router";
 import { StartupSplashScreen } from "@/screens/startup-splash-screen";
-import { useHostRuntimeBootstrapState, useStoreReady } from "@/app/_layout";
-import { getHostRuntimeStore } from "@/runtime/host-runtime";
-import { buildHostRootRoute } from "@/utils/host-routes";
+import {
+  type HostRuntimeBootstrapState,
+  useHostRuntimeBootstrapState,
+  useStoreReady,
+} from "@/app/_layout";
+import { buildHostRootRoute, buildHostWorkspaceRoute } from "@/utils/host-routes";
 import { shouldUseDesktopDaemon } from "@/desktop/daemon/desktop-daemon";
 
 const WELCOME_ROUTE = "/welcome";
 
-function useEarliestOnlineHostServerId(): string | null {
-  const runtime = getHostRuntimeStore();
-  return useSyncExternalStore(
-    (onStoreChange) => runtime.subscribeAll(onStoreChange),
-    () => runtime.getEarliestOnlineHostServerId(),
-    () => null,
-  );
-}
-
 const isDesktop = shouldUseDesktopDaemon();
 
 export default function Index() {
-  const router = useRouter();
   const pathname = usePathname();
   const bootstrapState = useHostRuntimeBootstrapState();
   const storeReady = useStoreReady();
-  const anyOnlineServerId = useEarliestOnlineHostServerId();
+  const redirectRoute = resolveStartupRedirectRoute({
+    bootstrapState,
+    pathname,
+    storeReady,
+  });
 
-  useEffect(() => {
-    if (!storeReady) {
-      return;
-    }
-    if (pathname !== "/" && pathname !== "") {
-      return;
-    }
-
-    const targetRoute = anyOnlineServerId ? buildHostRootRoute(anyOnlineServerId) : WELCOME_ROUTE;
-    router.replace(targetRoute);
-  }, [anyOnlineServerId, pathname, router, storeReady]);
+  if (redirectRoute) {
+    return <Redirect href={redirectRoute} />;
+  }
 
   return <StartupSplashScreen bootstrapState={isDesktop ? bootstrapState : undefined} />;
 }
+
+function resolveStartupRedirectRoute(input: {
+  bootstrapState: HostRuntimeBootstrapState;
+  pathname: string;
+  storeReady: boolean;
+}): Href | null {
+  const { bootstrapState, pathname, storeReady } = input;
+
+  if (!storeReady || !bootstrapState.startupNavigation) {
+    return null;
+  }
+  if (pathname !== "/" && pathname !== "") {
+    return null;
+  }
+
+  const { target, workspaceSelection } = bootstrapState.startupNavigation;
+
+  if (!target) {
+    return WELCOME_ROUTE;
+  }
+
+  if (workspaceSelection && target.serverId === workspaceSelection.serverId) {
+    return buildHostWorkspaceRoute(workspaceSelection.serverId, workspaceSelection.workspaceId);
+  }
+
+  return buildHostRootRoute(target.serverId);
+}

packages/app/src/runtime/host-runtime.test.ts

@@ -282,6 +282,72 @@ function updateControllerSnapshot(
   ).updateSnapshot(patch);
 }
 
+function makeSingleConnectionHost(serverId: string): HostProfile {
+  return makeHost({
+    serverId,
+    connections: [
+      {
+        id: `direct:${serverId}:6767`,
+        type: "directTcp",
+        endpoint: `${serverId}:6767`,
+      },
+    ],
+    preferredConnectionId: `direct:${serverId}:6767`,
+  });
+}
+
+function createOfflineOnlyStore(): HostRuntimeStore {
+  return new HostRuntimeStore({
+    deps: {
+      createClient: () => {
+        throw new Error("startup host tests drive snapshots directly");
+      },
+      connectToDaemon: async () => {
+        throw new Error("offline");
+      },
+      getClientId: async () => "cid_test_runtime",
+    },
+  });
+}
+
+function setStoreHosts(store: HostRuntimeStore, hosts: HostProfile[]): void {
+  (
+    store as unknown as {
+      setHostsAndSync: (hosts: HostProfile[]) => void;
+    }
+  ).setHostsAndSync(hosts);
+}
+
+function markStoreHostOnline(
+  store: HostRuntimeStore,
+  serverId: string,
+  lastOnlineAt: string,
+): void {
+  const controller = (
+    store as unknown as {
+      controllers: Map<string, HostRuntimeController>;
+    }
+  ).controllers.get(serverId);
+  if (!controller) {
+    throw new Error(`Missing controller for ${serverId}`);
+  }
+  (
+    store as unknown as {
+      lastConnectionStatusByServer: Map<string, HostRuntimeSnapshot["connectionStatus"]>;
+    }
+  ).lastConnectionStatusByServer.set(serverId, "online");
+  updateControllerSnapshot(controller, {
+    connectionStatus: "online",
+    hasEverLoadedAgentDirectory: true,
+    lastOnlineAt,
+  });
+  (
+    store as unknown as {
+      emit: (serverId: string) => void;
+    }
+  ).emit(serverId);
+}
+
 function makeProbeMap(
   entries: Array<
     [string, HostRuntimeSnapshot["probeByConnectionId"] extends Map<string, infer T> ? T : never]
@@ -1158,6 +1224,113 @@ describe("HostRuntimeController", () => {
 });
 
 describe("HostRuntimeStore", () => {
+  it("resolves startup host immediately when the preferred host is first online", async () => {
+    const store = createOfflineOnlyStore();
+    setStoreHosts(store, [
+      makeSingleConnectionHost("srv_preferred"),
+      makeSingleConnectionHost("srv_other"),
+    ]);
+
+    const startup = store.waitForAnyConnectionOnline({ preferredServerId: "srv_preferred" });
+    markStoreHostOnline(store, "srv_preferred", "2026-04-26T10:00:00.000Z");
+
+    await expect(startup.promise).resolves.toEqual({ serverId: "srv_preferred" });
+    startup.cancel();
+    setStoreHosts(store, []);
+  });
+
+  it("waits through grace for the preferred host after a different host comes online first", async () => {
+    vi.useFakeTimers();
+    try {
+      const store = createOfflineOnlyStore();
+      setStoreHosts(store, [
+        makeSingleConnectionHost("srv_preferred"),
+        makeSingleConnectionHost("srv_other"),
+      ]);
+
+      const startup = store.waitForAnyConnectionOnline({ preferredServerId: "srv_preferred" });
+      markStoreHostOnline(store, "srv_other", "2026-04-26T10:00:00.000Z");
+      await vi.advanceTimersByTimeAsync(1_000);
+      markStoreHostOnline(store, "srv_preferred", "2026-04-26T10:00:01.000Z");
+
+      await expect(startup.promise).resolves.toEqual({ serverId: "srv_preferred" });
+      startup.cancel();
+      setStoreHosts(store, []);
+    } finally {
+      vi.useRealTimers();
+    }
+  });
+
+  it("falls back to the first online host when preferred does not arrive during grace", async () => {
+    vi.useFakeTimers();
+    try {
+      const store = createOfflineOnlyStore();
+      setStoreHosts(store, [
+        makeSingleConnectionHost("srv_preferred"),
+        makeSingleConnectionHost("srv_other"),
+      ]);
+
+      const startup = store.waitForAnyConnectionOnline({ preferredServerId: "srv_preferred" });
+      markStoreHostOnline(store, "srv_other", "2026-04-26T10:00:00.000Z");
+      await vi.advanceTimersByTimeAsync(2_000);
+
+      await expect(startup.promise).resolves.toEqual({ serverId: "srv_other" });
+      startup.cancel();
+      setStoreHosts(store, []);
+    } finally {
+      vi.useRealTimers();
+    }
+  });
+
+  it("resolves the first online host immediately when no preferred host is set", async () => {
+    const store = createOfflineOnlyStore();
+    setStoreHosts(store, [makeSingleConnectionHost("srv_other")]);
+
+    const startup = store.waitForAnyConnectionOnline({ preferredServerId: null });
+    markStoreHostOnline(store, "srv_other", "2026-04-26T10:00:00.000Z");
+
+    await expect(startup.promise).resolves.toEqual({ serverId: "srv_other" });
+    startup.cancel();
+    setStoreHosts(store, []);
+  });
+
+  it("resolves null when startup has no hosts to wait for", async () => {
+    const store = createOfflineOnlyStore();
+
+    const startup = store.waitForAnyConnectionOnline({ preferredServerId: "srv_preferred" });
+
+    await expect(startup.promise).resolves.toBeNull();
+    startup.cancel();
+  });
+
+  it("resolves null using the connection online timeout when hosts exist but none come online", async () => {
+    vi.useFakeTimers();
+    try {
+      const store = createOfflineOnlyStore();
+      setStoreHosts(store, [
+        makeSingleConnectionHost("srv_preferred"),
+        makeSingleConnectionHost("srv_other"),
+      ]);
+
+      let resolved = false;
+      const startup = store.waitForAnyConnectionOnline({ preferredServerId: "srv_preferred" });
+      startup.promise.then(() => {
+        resolved = true;
+        return undefined;
+      });
+
+      await vi.advanceTimersByTimeAsync(4_999);
+      expect(resolved).toBe(false);
+      await vi.advanceTimersByTimeAsync(1);
+
+      await expect(startup.promise).resolves.toBeNull();
+      startup.cancel();
+      setStoreHosts(store, []);
+    } finally {
+      vi.useRealTimers();
+    }
+  });
+
   it("bootstraps agent directory subscription when host transitions online", async () => {
     const host = makeHost({
       connections: [

packages/app/src/runtime/host-runtime.ts

@@ -70,6 +70,10 @@ export interface HostRuntimeSnapshot {
   clientGeneration: number;
 }
 
+export interface StartupHostResolution {
+  serverId: string;
+}
+
 type HostRuntimeSnapshotPatch = Partial<Omit<HostRuntimeSnapshot, "serverId" | "clientGeneration">>;
 
 function setSnapshotPatchField<Key extends keyof HostRuntimeSnapshotPatch>(
@@ -1151,6 +1155,8 @@ const REGISTRY_STORAGE_KEY = "@paseo:daemon-registry";
 const DEFAULT_LOCALHOST_ENDPOINT = process.env.EXPO_PUBLIC_LOCAL_DAEMON?.trim() || "localhost:6767";
 const DEFAULT_LOCALHOST_BOOTSTRAP_TIMEOUT_MS = 2500;
 const CONNECTION_ONLINE_TIMEOUT_MS = 15_000;
+const STARTUP_HOST_GRACE_MS = 2_000;
+const STARTUP_NO_HOST_ONLINE_TIMEOUT_MS = 5_000;
 const E2E_STORAGE_KEY = "@paseo:e2e";
 
 export class HostRuntimeStore {
@@ -1753,30 +1759,101 @@ export class HostRuntimeStore {
     return earliestServerId;
   }
 
-  waitForAnyConnectionOnline(): { promise: Promise<void>; cancel: () => void } {
+  waitForAnyConnectionOnline(input?: { preferredServerId?: string | null; graceMs?: number }): {
+    promise: Promise<StartupHostResolution | null>;
+    cancel: () => void;
+  } {
     let unsubscribe: (() => void) | null = null;
+    let graceTimeout: ReturnType<typeof setTimeout> | null = null;
+    let noHostOnlineTimeout: ReturnType<typeof setTimeout> | null = null;
+    let fallbackServerId: string | null = null;
+    let settled = false;
 
-    const promise = new Promise<void>((resolve) => {
-      if (this.getEarliestOnlineHostServerId() !== null) {
-        resolve();
-        return;
+    const normalizedPreferredServerId = input?.preferredServerId?.trim() || null;
+    const normalizedGraceMs = Math.max(0, input?.graceMs ?? STARTUP_HOST_GRACE_MS);
+
+    const cleanup = (): void => {
+      if (graceTimeout) {
+        clearTimeout(graceTimeout);
+        graceTimeout = null;
       }
+      if (noHostOnlineTimeout) {
+        clearTimeout(noHostOnlineTimeout);
+        noHostOnlineTimeout = null;
+      }
+      unsubscribe?.();
+      unsubscribe = null;
+    };
 
-      unsubscribe = this.subscribeAll(() => {
-        if (this.getEarliestOnlineHostServerId() !== null) {
-          unsubscribe?.();
-          unsubscribe = null;
-          resolve();
+    const promise = new Promise<StartupHostResolution | null>((resolve) => {
+      const settle = (result: StartupHostResolution | null): void => {
+        if (settled) {
+          return;
         }
-      });
+        settled = true;
+        cleanup();
+        resolve(result);
+      };
+
+      const getPreferredOnlineServerId = (): string | null => {
+        if (!normalizedPreferredServerId) {
+          return null;
+        }
+        return isHostRuntimeConnected(this.getSnapshot(normalizedPreferredServerId))
+          ? normalizedPreferredServerId
+          : null;
+      };
+
+      const evaluate = (): void => {
+        if (this.hosts.length === 0) {
+          settle(null);
+          return;
+        }
+
+        const preferredOnlineServerId = getPreferredOnlineServerId();
+        if (preferredOnlineServerId) {
+          settle({ serverId: preferredOnlineServerId });
+          return;
+        }
+
+        const earliestOnlineServerId = this.getEarliestOnlineHostServerId();
+        if (!earliestOnlineServerId) {
+          if (!noHostOnlineTimeout) {
+            noHostOnlineTimeout = setTimeout(() => {
+              settle(null);
+            }, STARTUP_NO_HOST_ONLINE_TIMEOUT_MS);
+          }
+          return;
+        }
+
+        if (noHostOnlineTimeout) {
+          clearTimeout(noHostOnlineTimeout);
+          noHostOnlineTimeout = null;
+        }
+
+        if (!normalizedPreferredServerId) {
+          settle({ serverId: earliestOnlineServerId });
+          return;
+        }
+
+        if (!fallbackServerId) {
+          fallbackServerId = earliestOnlineServerId;
+          graceTimeout = setTimeout(() => {
+            const latestPreferredOnlineServerId = getPreferredOnlineServerId();
+            settle({
+              serverId: latestPreferredOnlineServerId ?? fallbackServerId ?? earliestOnlineServerId,
+            });
+          }, normalizedGraceMs);
+        }
+      };
+
+      unsubscribe = this.subscribeAll(evaluate);
+      evaluate();
     });
 
     return {
       promise,
-      cancel: () => {
-        unsubscribe?.();
-        unsubscribe = null;
-      },
+      cancel: cleanup,
     };
   }
 

packages/app/src/stores/navigation-active-workspace-store.test.ts

@@ -1,9 +1,28 @@
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 
+const asyncStorageMock = vi.hoisted(() => ({
+  getItem: vi.fn<(_: string) => Promise<string | null>>(),
+  setItem: vi.fn<(_: string, __: string) => Promise<void>>(),
+}));
+
+vi.mock("@react-native-async-storage/async-storage", () => ({
+  default: asyncStorageMock,
+}));
+
 vi.mock("@/constants/platform", () => ({
   isWeb: true,
 }));
 
+const LAST_WORKSPACE_ROUTE_SELECTION_STORAGE_KEY = "paseo:last-workspace-route-selection";
+
+function createDeferred<T>() {
+  let resolve!: (value: T) => void;
+  const promise = new Promise<T>((nextResolve) => {
+    resolve = nextResolve;
+  });
+  return { promise, resolve };
+}
+
 function installWindowStub(pathname: string) {
   const windowStub = {
     location: {
@@ -75,6 +94,10 @@ function createNavigationPathWithParamsRef(path: string, serverId: string, works
 describe("navigation active workspace store", () => {
   beforeEach(() => {
     vi.resetModules();
+    asyncStorageMock.getItem.mockReset();
+    asyncStorageMock.setItem.mockReset();
+    asyncStorageMock.getItem.mockResolvedValue(null);
+    asyncStorageMock.setItem.mockResolvedValue();
   });
 
   afterEach(() => {
@@ -173,4 +196,58 @@ describe("navigation active workspace store", () => {
       workspaceId: "workspace-a",
     });
   });
+
+  it("hydrates the last workspace route selection from storage on startup", async () => {
+    const storedSelection = createDeferred<string | null>();
+    asyncStorageMock.getItem.mockReturnValue(storedSelection.promise);
+    installWindowStub("/open-project");
+
+    const store = await import("@/stores/navigation-active-workspace-store");
+
+    expect(store.getIsLastNavigationWorkspaceRouteSelectionLoaded()).toBe(false);
+    const hydration = store.hydrateLastNavigationWorkspaceRouteSelection();
+    storedSelection.resolve(JSON.stringify({ serverId: "server-1", workspaceId: "workspace-a" }));
+    await hydration;
+
+    expect(asyncStorageMock.getItem).toHaveBeenCalledWith(
+      LAST_WORKSPACE_ROUTE_SELECTION_STORAGE_KEY,
+    );
+    expect(store.getLastNavigationWorkspaceRouteSelection()).toEqual({
+      serverId: "server-1",
+      workspaceId: "workspace-a",
+    });
+    expect(store.getIsLastNavigationWorkspaceRouteSelectionLoaded()).toBe(true);
+  });
+
+  it("hydrates empty and corrupt workspace route storage as null", async () => {
+    installWindowStub("/open-project");
+
+    asyncStorageMock.getItem.mockResolvedValueOnce(null);
+    let store = await import("@/stores/navigation-active-workspace-store");
+    await store.hydrateLastNavigationWorkspaceRouteSelection();
+
+    expect(store.getLastNavigationWorkspaceRouteSelection()).toBeNull();
+    expect(store.getIsLastNavigationWorkspaceRouteSelectionLoaded()).toBe(true);
+
+    vi.resetModules();
+    asyncStorageMock.getItem.mockResolvedValueOnce("{not json");
+    store = await import("@/stores/navigation-active-workspace-store");
+    await store.hydrateLastNavigationWorkspaceRouteSelection();
+
+    expect(store.getLastNavigationWorkspaceRouteSelection()).toBeNull();
+    expect(store.getIsLastNavigationWorkspaceRouteSelectionLoaded()).toBe(true);
+  });
+
+  it("persists valid last workspace route selections", async () => {
+    installWindowStub("/h/server-1/workspace/workspace-a");
+    const store = await import("@/stores/navigation-active-workspace-store");
+    await store.hydrateLastNavigationWorkspaceRouteSelection();
+
+    store.syncNavigationActiveWorkspace(createNavigationRef("server-1", "workspace-a"));
+
+    expect(asyncStorageMock.setItem).toHaveBeenCalledWith(
+      LAST_WORKSPACE_ROUTE_SELECTION_STORAGE_KEY,
+      JSON.stringify({ serverId: "server-1", workspaceId: "workspace-a" }),
+    );
+  });
 });

packages/app/src/stores/navigation-active-workspace-store.ts

@@ -1,3 +1,4 @@
+import AsyncStorage from "@react-native-async-storage/async-storage";
 import { useMemo, useSyncExternalStore } from "react";
 import { useSyncExternalStoreWithSelector } from "use-sync-external-store/shim/with-selector";
 import {
@@ -38,8 +39,13 @@ interface NavigationObserverRef {
   } | null;
 }
 
+const LAST_WORKSPACE_ROUTE_SELECTION_STORAGE_KEY = "paseo:last-workspace-route-selection";
+
 let snapshot: ActiveWorkspaceSelection | null = null;
 let lastWorkspaceRouteSelection: ActiveWorkspaceSelection | null = null;
+let isLastWorkspaceRouteSelectionLoaded = false;
+let lastWorkspaceRouteSelectionRevision = 0;
+let lastWorkspaceRouteSelectionHydrationPromise: Promise<void> | null = null;
 let nextWorkspaceRouteSelectionOverride: ActiveWorkspaceSelection | null = null;
 const listeners = new Set<() => void>();
 
@@ -54,13 +60,87 @@ function getSnapshot(): ActiveWorkspaceSelection | null {
   return snapshot;
 }
 
+function notifyListeners() {
+  for (const listener of listeners) {
+    listener();
+  }
+}
+
 function emitIfChanged(next: ActiveWorkspaceSelection | null) {
   if (snapshot?.serverId === next?.serverId && snapshot?.workspaceId === next?.workspaceId) {
     return;
   }
   snapshot = next;
-  for (const listener of listeners) {
-    listener();
+  notifyListeners();
+}
+
+function parseStoredLastWorkspaceRouteSelection(
+  stored: string | null,
+): ActiveWorkspaceSelection | null {
+  if (!stored) {
+    return null;
+  }
+
+  try {
+    return normalizeActiveWorkspaceSelection(JSON.parse(stored));
+  } catch {
+    return null;
+  }
+}
+
+function normalizeActiveWorkspaceSelection(input: unknown): ActiveWorkspaceSelection | null {
+  if (!input || typeof input !== "object" || Array.isArray(input)) {
+    return null;
+  }
+
+  const selection = input as Record<string, unknown>;
+  const serverId = typeof selection.serverId === "string" ? selection.serverId.trim() : "";
+  const workspaceId = typeof selection.workspaceId === "string" ? selection.workspaceId.trim() : "";
+
+  if (!serverId || !workspaceId) {
+    return null;
+  }
+
+  return { serverId, workspaceId };
+}
+
+function persistLastWorkspaceRouteSelection(next: ActiveWorkspaceSelection) {
+  void AsyncStorage.setItem(LAST_WORKSPACE_ROUTE_SELECTION_STORAGE_KEY, JSON.stringify(next)).catch(
+    () => {},
+  );
+}
+
+function setLastWorkspaceRouteSelection(next: ActiveWorkspaceSelection) {
+  const normalized = normalizeActiveWorkspaceSelection(next);
+  if (!normalized) {
+    return;
+  }
+
+  if (
+    lastWorkspaceRouteSelection?.serverId === normalized.serverId &&
+    lastWorkspaceRouteSelection.workspaceId === normalized.workspaceId
+  ) {
+    return;
+  }
+
+  lastWorkspaceRouteSelectionRevision += 1;
+  lastWorkspaceRouteSelection = normalized;
+  persistLastWorkspaceRouteSelection(normalized);
+}
+
+async function readLastWorkspaceRouteSelectionFromStorage(hydrationRevision: number) {
+  try {
+    const stored = await AsyncStorage.getItem(LAST_WORKSPACE_ROUTE_SELECTION_STORAGE_KEY);
+    if (lastWorkspaceRouteSelectionRevision === hydrationRevision) {
+      lastWorkspaceRouteSelection = parseStoredLastWorkspaceRouteSelection(stored);
+    }
+  } catch {
+    if (lastWorkspaceRouteSelectionRevision === hydrationRevision) {
+      lastWorkspaceRouteSelection = null;
+    }
+  } finally {
+    isLastWorkspaceRouteSelectionLoaded = true;
+    notifyListeners();
   }
 }
 
@@ -170,7 +250,7 @@ export function syncNavigationActiveWorkspace(navigationRef: NavigationObserverR
   const route = navigationRef.current?.getCurrentRoute();
   const routeState = classifyNavigationWorkspaceRoute(route);
   if (routeState.kind === "workspace") {
-    lastWorkspaceRouteSelection = routeState.selection;
+    setLastWorkspaceRouteSelection(routeState.selection);
     if (nextWorkspaceRouteSelectionOverride) {
       const overrideSelection = nextWorkspaceRouteSelectionOverride;
       nextWorkspaceRouteSelectionOverride = null;
@@ -197,6 +277,22 @@ export function getLastNavigationWorkspaceRouteSelection(): ActiveWorkspaceSelec
   return lastWorkspaceRouteSelection;
 }
 
+export function getIsLastNavigationWorkspaceRouteSelectionLoaded(): boolean {
+  return isLastWorkspaceRouteSelectionLoaded;
+}
+
+export function hydrateLastNavigationWorkspaceRouteSelection(): Promise<void> {
+  if (lastWorkspaceRouteSelectionHydrationPromise) {
+    return lastWorkspaceRouteSelectionHydrationPromise;
+  }
+
+  const hydrationRevision = lastWorkspaceRouteSelectionRevision;
+  lastWorkspaceRouteSelectionHydrationPromise =
+    readLastWorkspaceRouteSelectionFromStorage(hydrationRevision);
+
+  return lastWorkspaceRouteSelectionHydrationPromise;
+}
+
 export function overrideNextNavigationWorkspaceRouteSelection(next: ActiveWorkspaceSelection) {
   nextWorkspaceRouteSelectionOverride = next;
 }
@@ -223,6 +319,14 @@ export function useNavigationActiveWorkspaceSelection(): ActiveWorkspaceSelectio
   return useSyncExternalStore(subscribe, getSnapshot, getSnapshot);
 }
 
+export function useIsLastNavigationWorkspaceRouteSelectionLoaded(): boolean {
+  return useSyncExternalStore(
+    subscribe,
+    getIsLastNavigationWorkspaceRouteSelectionLoaded,
+    getIsLastNavigationWorkspaceRouteSelectionLoaded,
+  );
+}
+
 export function useIsNavigationWorkspaceSelected(input: {
   serverId: string | null;
   workspaceId: string | null;
@@ -243,6 +347,8 @@ export function useIsNavigationWorkspaceSelected(input: {
   );
 }
 
+void hydrateLastNavigationWorkspaceRouteSelection();
+
 export function useIsNavigationProjectActive(input: {
   serverId: string | null;
   workspaceIds: readonly string[];