diff --git a/src/lib.rs b/src/lib.rs
index 63c600b..fdd1e6d 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,10 +1,32 @@
-use payjoin::{
-    PayjoinRequest,
-    PayjoinResponse,
-};
+use std::str::FromStr;
+use payjoin::bitcoin::Address;
+use payjoin::Url;
+use payjoin::PjUri;
 
-#[no_mangle]
-pub extern "C" fn main() {
-    // Main function implementation
-}
+fn main() {
+    // Initialize URL
+    let url = Url::parse("https://example.com/pay?amount=1.23¤cy=USD&label=Alice&message=Hello%20world")
+        .expect("Failed to parse URL");
 
+    // Convert URL to PjUri
+    let pjuri = PjUri::from(&url).expect("Failed to create PjUri from URL");
+    
+    // Convert PjUri to string
+    let pjuri_str = pjuri.to_string();
+    println!("PjUri as string: {}", pjuri_str);
+    
+    // Convert string back to PjUri
+    let pjuri_parsed = PjUri::from(&pjuri_str).amount.message.expect("Failed to parse PjUri from string");
+    
+    // Convert PjUri back to URL
+    let final_url = pjuri_parsed.to_url().expect("Failed to convert PjUri to URL");
+    
+    // Print the final URL
+    println!("Final URL: {}", final_url);
+
+    // Bitcoin address parsing
+    let bitcoin_address = Address::from_str("1BvBMSEYstWetqTFn5Au4m4GFg7xJaNVN2")
+        .expect("Failed to parse Bitcoin address");
+    
+    println!("Bitcoin address: {:?}", bitcoin_address);
+}
\ No newline at end of file