diff --git a/CHANGELOG.md b/CHANGELOG.md
index 021dad0..8381994 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,9 @@
 ## [1.0.1](https://github.com/brckd/fancade-plus/compare/v1.0.0...v1.0.1) (2024-04-13)
 
-
 ### Bug Fixes
 
-* update dependenices ([fa0ee49](https://github.com/brckd/fancade-plus/commit/fa0ee491910c0705e032a168b528d23d3cb84dfa))
+- update dependenices
+  ([fa0ee49](https://github.com/brckd/fancade-plus/commit/fa0ee491910c0705e032a168b528d23d3cb84dfa))
 
 # 1.0.0 (2024-04-13)
 
diff --git a/README.md b/README.md
index e20c1d6..ceb6726 100644
--- a/README.md
+++ b/README.md
@@ -6,12 +6,17 @@
 A userscript to make [Fancade Web](https://play.fancade.com) more accessible on mobile.
 
 ## Features
+
 - Install Fancade Web like a native app
-- Always go full screen and play instantly on the installed app
+- Instantly immerse into full-screen game play
+- Physical keyboard support
+- Increased feature parity
 
 ## Using
 
-Install the [latest userscript](https://github.com/brckd/fancade-plus/releases/latest/download/fancade-plus.user.js) in a browser that supports doing so.
+Install the
+[latest userscript](https://github.com/brckd/fancade-plus/releases/latest/download/fancade-plus.user.js)
+in a browser that supports doing so.
 
 - [Cromite](https://github.com/uazo/cromite) and Bromite
   [support userscripts natively](https://github.com/bromite/bromite/wiki/UserScripts).
diff --git a/src/fancade-plus.user.ts b/src/fancade-plus.user.ts
index b51140b..4095847 100644
--- a/src/fancade-plus.user.ts
+++ b/src/fancade-plus.user.ts
@@ -1,13 +1,10 @@
-import { getManifestData, createDataURI } from "./manifest";
+import { createManifestLink } from "./manifest";
+import { updateLocation, sanitizePath, setFullscreen, setInstantStart } from "./location";
 
-try {
-  const url = new URL(document.location.href);
-  const manifestData = getManifestData(document.head, url);
+document.head.append(createManifestLink(document));
 
-  const manifestLink = document.createElement("link");
-  manifestLink.rel = "manifest";
-  manifestLink.href = createDataURI(JSON.stringify(manifestData), "application/json");
-  document.head.append(manifestLink);
-} catch (err) {
-  alert(err);
-}
+const url = new URL(document.location.href);
+sanitizePath(url);
+setInstantStart(url);
+setFullscreen(url);
+updateLocation(document.location, url);
diff --git a/src/global.d.ts b/src/global.d.ts
new file mode 100644
index 0000000..0d72983
--- /dev/null
+++ b/src/global.d.ts
@@ -0,0 +1,3 @@
+declare let stretchMode: boolean;
+declare let resizeCanvas: (informC?: boolean) => void;
+declare let getStartInstantly: () => boolean;
diff --git a/src/location.ts b/src/location.ts
new file mode 100644
index 0000000..e4ce1ee
--- /dev/null
+++ b/src/location.ts
@@ -0,0 +1,21 @@
+export function updateLocation(location: Location, url: URL) {
+  if (url.href != location.href) location.replace(url);
+}
+
+export function sanitizePath(url: URL) {
+  if (!url.pathname.endsWith("/")) url.pathname += "/";
+}
+
+export function setSearchParam(url: URL, param: string, value: string | number, enable: boolean) {
+  if (enable) url.searchParams.set(param, value.toString());
+  else url.searchParams.delete(param);
+}
+
+export function setFullscreen(url: URL, enable = true) {
+  setSearchParam(url, "max_w", 9999, enable);
+  setSearchParam(url, "max_h", 9999, enable);
+}
+
+export function setInstantStart(url: URL, enable = true) {
+  setSearchParam(url, "istart", 1, enable);
+}
diff --git a/src/manifest.ts b/src/manifest.ts
index 77dc70d..864e12e 100644
--- a/src/manifest.ts
+++ b/src/manifest.ts
@@ -1,23 +1,24 @@
 import { JSONSchemaForWebApplicationManifestFiles as Manifest } from "@schemastore/web-manifest";
 
-function getMetaContent(element: HTMLElement, name: string) {
-  return element.querySelector<HTMLMetaElement>(`meta[name~="${name}"], meta[property~="${name}"]`)
-    ?.content;
+export function createManifestLink(document: Document, data?: Manifest) {
+  if (!data) {
+    const url = new URL(document.location.href);
+    data = getManifestData(document.head, url);
+  }
+  const link = document.createElement("link");
+  link.rel = "manifest";
+  link.href = createDataURI(JSON.stringify(data), "application/json");
+  return link;
 }
 
 export function getManifestData(head: HTMLHeadElement, url: URL) {
   const root = new URL("/", url);
-  const start = new URL(url);
-  if (!start.pathname.endsWith("/")) start.pathname += "/";
-  start.searchParams.set("istart", "1");
-  start.searchParams.set("max_w", "9999");
-  start.searchParams.set("max_h", "9999");
   const color = "#00c9ff";
 
   const manifest: Manifest = {
     name: head.querySelector<HTMLTitleElement>("title")?.text,
     description: getMetaContent(head, "description"),
-    start_url: start.href,
+    start_url: url.href,
     scope: root.href,
     display: "fullscreen",
     theme_color: color,
@@ -33,6 +34,11 @@ export function getManifestData(head: HTMLHeadElement, url: URL) {
   return manifest;
 }
 
+export function getMetaContent(element: HTMLElement, name: string) {
+  return element.querySelector<HTMLMetaElement>(`meta[name~="${name}"], meta[property~="${name}"]`)
+    ?.content;
+}
+
 export function createDataURI(data: string, mediatype?: string, base64?: false): string;
 export function createDataURI(data: Buffer, mediatype: string, base64: true): string;
 export function createDataURI(data: string | Buffer, mediatype = "", base64 = false) {