diff --git a/src/ambient.d.ts b/src/ambient.d.ts
index d1b3ba2..92a9a6b 100644
--- a/src/ambient.d.ts
+++ b/src/ambient.d.ts
@@ -28,8 +28,9 @@ interface BeforeInstallPromptEvent extends Event {
   prompt(): Promise<void>;
 }
 
-declare global {
-  interface WindowEventMap {
-    beforeinstallprompt: BeforeInstallPromptEvent;
-  }
+declare interface WindowEventMap {
+  beforeinstallprompt: BeforeInstallPromptEvent;
+}
+declare interface Navigator {
+  getInstalledRelatedApps: () => Promise<sequence<RelatedApplication>>;
 }
diff --git a/src/views/Home.vue b/src/views/Home.vue
index 7e944c3..e089999 100644
--- a/src/views/Home.vue
+++ b/src/views/Home.vue
@@ -96,7 +96,7 @@ const unknownInstallOverlay = ref(false);
 let installPromptEvent: BeforeInstallPromptEvent | null = null;
 window.addEventListener("beforeinstallprompt", (e) => {
   e.preventDefault();
-  installPromptEvent = e as BeforeInstallPromptEvent;
+  installPromptEvent = e;
 });
 const isInStandaloneMode = window.matchMedia(
   "(display-mode: standalone)",
@@ -108,7 +108,7 @@ async function installPWA() {
     const relatedApps = await navigator.getInstalledRelatedApps();
     installed = relatedApps.length > 0;
   }
-  if (installed || true) {
+  if (installed) {
     alreadyInstalledOverlay.value = true;
   } else if (platform.value.ios) {
     iosInstallOverlay.value = true;