diff --git a/config/nginx.conf b/config/nginx.conf
index 2af6c30..f725346 100644
--- a/config/nginx.conf
+++ b/config/nginx.conf
@@ -2,9 +2,24 @@ server {
     listen       8080;
     server_name  localhost;
 
+    root   /app;
+
     location / {
-        root   /app;
+        # disable cache entriely by default (apart from Etag which is accurate enough)
+        add_header Cache-Control 'private no-store, no-cache, must-revalidate, proxy-revalidate, max-age=0';
+        if_modified_since off;
+        expires off;
+        # also turn off last-modified since they are just the timestamps of the file in the docker image
+        # and may or may not bear any resemblance to when the resource changed
+        add_header Last-Modified "";
+
         try_files $uri /$uri /index.html;
     }
+
+    # assets can be cached because they have hashed filenames
+    location /assets {
+        expires 1w;
+        add_header Cache-Control "public, no-transform";
+    }
 }
 
diff --git a/src/matrix-utils.ts b/src/matrix-utils.ts
index 3e01d16..dc55702 100644
--- a/src/matrix-utils.ts
+++ b/src/matrix-utils.ts
@@ -94,12 +94,17 @@ export async function initClient(
 
   const storeOpts = {} as ICreateClientOpts;
 
-  if (indexedDB && localStorage && !import.meta.env.DEV) {
+  if (indexedDB && localStorage) {
     storeOpts.store = new IndexedDBStore({
       indexedDB: window.indexedDB,
       localStorage,
       dbName: SYNC_STORE_NAME,
-      workerFactory: () => new IndexedDBWorker(),
+      // We can't use the worker in dev mode because Vite simply doesn't bundle workers
+      // in dev mode: it expects them to use native modules. Ours don't, and even then only
+      // Chrome supports it. (It bundles them fine in production mode.)
+      workerFactory: import.meta.env.DEV
+        ? undefined
+        : () => new IndexedDBWorker(),
     });
   } else if (localStorage) {
     storeOpts.store = new MemoryStore({ localStorage });
diff --git a/src/room/InCallView.tsx b/src/room/InCallView.tsx
index 2969c9a..2214501 100644
--- a/src/room/InCallView.tsx
+++ b/src/room/InCallView.tsx
@@ -63,7 +63,7 @@ import { usePrefersReducedMotion } from "../usePrefersReducedMotion";
 import { ParticipantInfo } from "./useGroupCall";
 import { TileDescriptor } from "../video-grid/TileDescriptor";
 import { AudioSink } from "../video-grid/AudioSink";
-import { useKeyboardShortcuts } from "../useKeyboardShortcuts";
+import { useCallViewKeyboardShortcuts } from "../useCallViewKeyboardShortcuts";
 
 const canScreenshare = "getDisplayMedia" in (navigator.mediaDevices ?? {});
 // There is currently a bug in Safari our our code with cloning and sending MediaStreams
@@ -144,7 +144,7 @@ export function InCallView({
 
   const { hideScreensharing } = useUrlParams();
 
-  useKeyboardShortcuts(
+  useCallViewKeyboardShortcuts(
     !feedbackModalState.isOpen,
     toggleMicrophoneMuted,
     toggleLocalVideoMuted,
diff --git a/src/useCallViewKeyboardShortcuts.ts b/src/useCallViewKeyboardShortcuts.ts
index 6356b52..8a247d0 100644
--- a/src/useCallViewKeyboardShortcuts.ts
+++ b/src/useCallViewKeyboardShortcuts.ts
@@ -19,7 +19,7 @@ import { useCallback, useState } from "react";
 import { getSetting } from "./settings/useSetting";
 import { useEventTarget } from "./useEvents";
 
-export function useKeyboardShortcuts(
+export function useCallViewKeyboardShortcuts(
   enabled: boolean,
   toggleMicrophoneMuted: () => void,
   toggleLocalVideoMuted: () => void,