Tauri - Global variable (Mutex) containing custom app data dir

main.rs

use std::sync::Mutex;
use tauri::api::path::data_dir;

pub static APP_DATA_DIR: Mutex<String> = Mutex::new(String::new());

fn main() {
    tauri::Builder::default()
        .invoke_handler(tauri::generate_handler![])
        .setup(|app| {
            let sys_data_dir = data_dir().unwrap();
            let app_name = app.package_info().name.to_string();
            let app_data_dir = sys_data_dir.join(app_name.to_string());
            std::fs::create_dir_all(&app_data_dir).unwrap();
            *APP_DATA_DIR.lock().unwrap() = app_data_dir.to_str().unwrap().to_string();
            Ok(())
        })
        .run(tauri::generate_context!())
        .expect("error while running tauri application");
}