diff --git a/src/main.rs b/src/main.rs
index 96435ee..ae90595 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,11 +1,29 @@
+use clap::Parser;
+
 mod ics;
 mod info;
 mod timetable;
 mod utils;
 
+#[derive(Parser)]
+#[clap(version, about, long_about = None)]
+struct Args {
+    /// Class
+    #[clap(short, long, value_parser)]
+    class: i8,
+
+    /// Subgroup if you have one, for example in `L1-A`, specify here the `A`
+    #[clap(short, long, value_parser)]
+    letter: Option<char>,
+}
+
 #[tokio::main]
 async fn main() {
-    println!("Fetch the timetable...");
+    let args = Args::parse();
+
+    println!("class: L{}{}", args.class, args.letter.unwrap_or_default());
+
+    /* println!("Fetch the timetable...");
     let timetable = timetable::timetable(3, 1, None).await;
 
     println!("Fetch informations about the year...");
@@ -14,5 +32,5 @@ async fn main() {
     println!("Build the ICS file...");
     let builded_timetable = timetable::build(timetable, info);
 
-    ics::export(builded_timetable, "target/debug.ics");
+    ics::export(builded_timetable, "target/debug.ics"); */
 }