diff --git a/.gitignore b/.gitignore
index 45884c4..868c8b9 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
 /.idea
 *.iml
+/out
diff --git a/src/app/Application.java b/src/app/Application.java
new file mode 100644
index 0000000..bce4c7e
--- /dev/null
+++ b/src/app/Application.java
@@ -0,0 +1,12 @@
+package app;
+
+import noyau.Grille;
+
+public class Application {
+
+    public static void main(String[] args) {
+        Grille grille = new Grille();
+
+        System.out.println("Hello world!");
+    }
+}
diff --git a/src/noyau/Grille.java b/src/noyau/Grille.java
new file mode 100644
index 0000000..0b8c48c
--- /dev/null
+++ b/src/noyau/Grille.java
@@ -0,0 +1,4 @@
+package noyau;
+
+public class Grille {
+}
--
libgit2 0.21.2