diff --git a/src/contentScripts/communityConsole/utils/StartupDataStorage.ts b/src/contentScripts/communityConsole/utils/StartupDataStorage.ts
new file mode 100644
index 0000000..6e67a5d
--- /dev/null
+++ b/src/contentScripts/communityConsole/utils/StartupDataStorage.ts
@@ -0,0 +1,48 @@
+import { Queue } from '@datastructures-js/queue';
+import StartupDataModel from '../../../models/StartupData';
+
+type StartupDataModification = (startupData: StartupDataModel) => void;
+
+export default class StartupDataStorage {
+  private startupData: StartupDataModel;
+  private modificationsQueue: Queue<StartupDataModification>;
+
+  constructor() {
+    const rawData = this.getHtmlElement().getAttribute('data-startup');
+    this.startupData = new StartupDataModel(rawData ? JSON.parse(rawData) : {});
+    this.modificationsQueue = new Queue();
+  }
+
+  get(): StartupDataModel {
+    return this.startupData;
+  }
+
+  enqueueModification(
+    modification: StartupDataModification,
+  ): StartupDataStorage {
+    this.modificationsQueue.enqueue(modification);
+    return this;
+  }
+
+  applyModifications(): StartupDataStorage {
+    while (!this.modificationsQueue.isEmpty()) {
+      const modification = this.modificationsQueue.dequeue();
+      modification(this.startupData);
+    }
+    this.persistToDOM();
+    return this;
+  }
+
+  private persistToDOM() {
+    const serializedData = JSON.stringify(this.startupData.data);
+    this.getHtmlElement().setAttribute('data-startup', serializedData);
+  }
+
+  private getHtmlElement() {
+    const htmlElement = document.querySelector('html');
+    if (!htmlElement) {
+      throw new Error("StartupDataStorage: couldn't find the html element.");
+    }
+    return htmlElement;
+  }
+}