diff --git a/src/main.rs b/src/main.rs
index efad9d5..bb0654d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,16 @@
-mod iq_reader;
+use crate::iq_reader::FileSource;
+use std::error::Error;
 
-fn main() {
-    println!("Hello, world!");
+mod agc;
+mod iq_reader;
+mod plot;
+
+fn main() -> Result<(), Box<dyn Error>> {
+    let source = FileSource::new("test.iq", 32769)?;
+
+    // for chunk in source {
+    //     println!("{chunk :?}");
+    // }
+
+    Ok(())
 }