diff --git a/src/antares_web_installer/__main__.py b/src/antares_web_installer/__main__.py
new file mode 100644
index 0000000..6077aae
--- /dev/null
+++ b/src/antares_web_installer/__main__.py
@@ -0,0 +1,14 @@
+"""
+Main entrypoint for the CLI application.
+"""
+import sys
+
+from antares_web_installer.cli import install_cli
+
+
+def main():
+    install_cli(sys.argv[1:])
+
+
+if __name__ == '__main__':
+    main()
diff --git a/src/antares_web_installer/cli.py b/src/antares_web_installer/cli.py
new file mode 100644
index 0000000..9b9c78c
--- /dev/null
+++ b/src/antares_web_installer/cli.py
@@ -0,0 +1,14 @@
+import time
+
+import click
+
+
+@click.command()
+@click.argument('target_dir', type=click.Path())
+def install_cli(target_dir):
+    """
+    Install Antares Web.
+    """
+    print(f"Starting installation in directory: '{target_dir}'...")
+    time.sleep(1)
+    print("Installation complete!")