diff --git a/src-tauri/src/http.rs b/src-tauri/src/http.rs
new file mode 100644
index 0000000..da95b67
--- /dev/null
+++ b/src-tauri/src/http.rs
@@ -0,0 +1,25 @@
+use core::error::Error;
+use std::fs::File;
+use std::io::Write;
+use std::path::Path;
+
+/// Downloads a file from the given URL.
+/// Saves it to the specified file.
+/// This will overwrite the file if it already exists.
+/// url: The URL to download from.
+/// to_file: The file to save to.
+#[tauri::command]
+pub async fn download_file(url: String, to_file: String) -> Result<String, Box<dyn Error>> {
+    let mut response = reqwest::get(&url).await?;
+    let mut dest = {
+        let fname = Path::new(&to_file);
+        match File::create(&fname) {
+            Ok(f) => f,
+            Err(e) => return Err(Box::new(e)),
+        }
+    };
+    while let Some(chunk) = response.chunk().await? {
+        dest.write_all(&chunk).await?;
+    }
+    Ok("Downloaded".to_string())
+}
diff --git a/src-tauri/tauri.conf.json b/src-tauri/tauri.conf.json
index 1da6d01..cc9c208 100644
--- a/src-tauri/tauri.conf.json
+++ b/src-tauri/tauri.conf.json
@@ -15,6 +15,9 @@
       "shell": {
         "all": false,
         "open": true
+      },
+      "window": {
+        "startDragging": true
       }
     },
     "bundle": {
@@ -36,6 +39,7 @@
       {
         "fullscreen": false,
         "resizable": true,
+        "decorations": false,
         "title": "Cultivation",
         "width": 1280,
         "height": 730
diff --git a/src/backend/stores/mihoyo.ts b/src/backend/stores/mihoyo.ts
new file mode 100644
index 0000000..54219b6
--- /dev/null
+++ b/src/backend/stores/mihoyo.ts
@@ -0,0 +1,28 @@
+import { create } from "zustand";
+import { persist, createJSONStorage } from "zustand/middleware";
+
+import { invoke } from "@tauri-apps/api";
+
+export type GenshinStore = {
+    backgroundHash: string;
+};
+
+export const useGenshinStore = create(
+    persist(
+        (): GenshinStore => ({
+            backgroundHash: ""
+        }),
+        {
+            name: "genshin",
+            storage: createJSONStorage(() => localStorage)
+        }
+    )
+);
+
+/**
+ * React hook which returns the URL of the locally cached background image.
+ */
+export function useBackground() {
+    const { backgroundHash } = useGenshinStore();
+    const [background, setBackground] = useState<string | null>(null);
+}