diff --git a/package-lock.json b/package-lock.json
index e09531e..0ea03df 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "@opentelemetry/semantic-conventions": "^1.3.1",
         "dompurify": "^2.3.9",
         "express": "^4.17.2",
-        "hydrogen-view-sdk": "npm:@mlm/hydrogen-view-sdk@^0.24.0-scratch",
+        "hydrogen-view-sdk": "npm:@mlm/hydrogen-view-sdk@^0.25.0-scratch",
         "json5": "^2.2.1",
         "linkedom": "^0.14.17",
         "matrix-public-archive-shared": "file:./shared/",
@@ -3640,9 +3640,9 @@
     },
     "node_modules/hydrogen-view-sdk": {
       "name": "@mlm/hydrogen-view-sdk",
-      "version": "0.24.0-scratch",
-      "resolved": "https://registry.npmjs.org/@mlm/hydrogen-view-sdk/-/hydrogen-view-sdk-0.24.0-scratch.tgz",
-      "integrity": "sha512-NRH2TTjAaV+8siT6R4vAGJ55fSXT/7w5AdTe+mA6fyyTRKX2esWYFO+TtDSABm4TJmySqUxlUP/Yj+h1kuZ46w==",
+      "version": "0.25.0-scratch",
+      "resolved": "https://registry.npmjs.org/@mlm/hydrogen-view-sdk/-/hydrogen-view-sdk-0.25.0-scratch.tgz",
+      "integrity": "sha512-FgSBCgNbVe/jiy6khdY8ZtbcZ/CRPc1cDPNZM0skUWTnuXzDtzPUQ2dW45yOO951gd+GS01TPhpibjowEOWrow==",
       "dependencies": {
         "@matrix-org/olm": "https://gitlab.matrix.org/api/v4/projects/27/packages/npm/@matrix-org/olm/-/@matrix-org/olm-3.2.8.tgz",
         "another-json": "^0.2.0",
@@ -8091,9 +8091,9 @@
       }
     },
     "hydrogen-view-sdk": {
-      "version": "npm:@mlm/hydrogen-view-sdk@0.24.0-scratch",
-      "resolved": "https://registry.npmjs.org/@mlm/hydrogen-view-sdk/-/hydrogen-view-sdk-0.24.0-scratch.tgz",
-      "integrity": "sha512-NRH2TTjAaV+8siT6R4vAGJ55fSXT/7w5AdTe+mA6fyyTRKX2esWYFO+TtDSABm4TJmySqUxlUP/Yj+h1kuZ46w==",
+      "version": "npm:@mlm/hydrogen-view-sdk@0.25.0-scratch",
+      "resolved": "https://registry.npmjs.org/@mlm/hydrogen-view-sdk/-/hydrogen-view-sdk-0.25.0-scratch.tgz",
+      "integrity": "sha512-FgSBCgNbVe/jiy6khdY8ZtbcZ/CRPc1cDPNZM0skUWTnuXzDtzPUQ2dW45yOO951gd+GS01TPhpibjowEOWrow==",
       "requires": {
         "@matrix-org/olm": "https://gitlab.matrix.org/api/v4/projects/27/packages/npm/@matrix-org/olm/-/@matrix-org/olm-3.2.8.tgz",
         "another-json": "^0.2.0",
diff --git a/package.json b/package.json
index e07a49b..7acc43d 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
     "@opentelemetry/semantic-conventions": "^1.3.1",
     "dompurify": "^2.3.9",
     "express": "^4.17.2",
-    "hydrogen-view-sdk": "npm:@mlm/hydrogen-view-sdk@^0.24.0-scratch",
+    "hydrogen-view-sdk": "npm:@mlm/hydrogen-view-sdk@^0.25.0-scratch",
     "json5": "^2.2.1",
     "linkedom": "^0.14.17",
     "matrix-public-archive-shared": "file:./shared/",
diff --git a/shared/hydrogen-vm-render-script.js b/shared/hydrogen-vm-render-script.js
index 7e0d409..e887499 100644
--- a/shared/hydrogen-vm-render-script.js
+++ b/shared/hydrogen-vm-render-script.js
@@ -6,20 +6,13 @@
 // Data is passed in via `window.matrixPublicArchiveContext`
 
 const assert = require('matrix-public-archive-shared/lib/assert');
-const {
-  Platform,
-  MediaRepository,
-  createNavigation,
-  createRouter,
-
-  RetainedObservableValue,
-  PowerLevels,
-} = require('hydrogen-view-sdk');
+const { Platform, MediaRepository, createNavigation, createRouter } = require('hydrogen-view-sdk');
 
 const ArchiveRoomView = require('matrix-public-archive-shared/views/ArchiveRoomView');
 const ArchiveHistory = require('matrix-public-archive-shared/lib/archive-history');
 const supressBlankAnchorsReloadingThePage = require('matrix-public-archive-shared/lib/supress-blank-anchors-reloading-the-page');
 const ArchiveRoomViewModel = require('matrix-public-archive-shared/viewmodels/ArchiveRoomViewModel');
+const stubPowerLevelsObservable = require('matrix-public-archive-shared/lib/stub-powerlevels-observable');
 
 const fromTimestamp = window.matrixPublicArchiveContext.fromTimestamp;
 assert(fromTimestamp);
@@ -98,19 +91,7 @@ async function mountHydrogen() {
     mediaRepository: mediaRepository,
     // Based on https://github.com/vector-im/hydrogen-web/blob/5f9cfffa3b547991b665f57a8bf715270a1b2ef1/src/matrix/room/BaseRoom.js#L480
     observePowerLevels: async function () {
-      let powerLevelsObservable = this._powerLevelsObservable;
-      if (!powerLevelsObservable) {
-        const powerLevels = new PowerLevels({
-          powerLevelEvent: {},
-          ownUserId: 'xxx-ownUserId',
-          membership: null,
-        });
-        powerLevelsObservable = new RetainedObservableValue(powerLevels, () => {
-          this._powerLevels = null;
-        });
-        this._powerLevelsObservable = powerLevelsObservable;
-      }
-      return powerLevelsObservable;
+      return stubPowerLevelsObservable;
     },
   };
 
diff --git a/shared/lib/stub-powerlevels-observable.js b/shared/lib/stub-powerlevels-observable.js
new file mode 100644
index 0000000..2b941a6
--- /dev/null
+++ b/shared/lib/stub-powerlevels-observable.js
@@ -0,0 +1,17 @@
+'use strict';
+
+const { RetainedObservableValue, PowerLevels } = require('hydrogen-view-sdk');
+
+// Fake power levels for viewing the room anonymously
+const stubPowerLevels = new PowerLevels({
+  powerLevelEvent: {},
+  ownUserId: 'xxx-ownUserId',
+  membership: null,
+});
+const stubPowerLevelsObservable = new RetainedObservableValue(stubPowerLevels, () => {
+  // freeCallback
+  //
+  // I don't think we need to do anything here 🤷
+});
+
+module.exports = stubPowerLevelsObservable;
diff --git a/shared/viewmodels/ArchiveRoomViewModel.js b/shared/viewmodels/ArchiveRoomViewModel.js
index 6c16c97..7d8427f 100644
--- a/shared/viewmodels/ArchiveRoomViewModel.js
+++ b/shared/viewmodels/ArchiveRoomViewModel.js
@@ -22,6 +22,7 @@ const AvatarViewModel = require('matrix-public-archive-shared/viewmodels/AvatarV
 const {
   customTileClassForEntry,
 } = require('matrix-public-archive-shared/lib/custom-tile-utilities');
+const stubPowerLevelsObservable = require('matrix-public-archive-shared/lib/stub-powerlevels-observable');
 
 let txnCount = 0;
 function getFakeEventId() {
@@ -371,6 +372,7 @@ class ArchiveRoomViewModel extends ViewModel {
       fragmentIdComparer: fragmentIdComparer,
       clock: this.platform.clock,
       logger: this.platform.logger,
+      powerLevelsObservable: stubPowerLevelsObservable,
     });
 
     // Something we can modify with new state updates as we see them