diff --git a/webapp/src/main/kotlin/org/jeudego/pairgoth/store/FileStore.kt b/webapp/src/main/kotlin/org/jeudego/pairgoth/store/FileStore.kt
new file mode 100644
index 0000000..7b749e7
--- /dev/null
+++ b/webapp/src/main/kotlin/org/jeudego/pairgoth/store/FileStore.kt
@@ -0,0 +1,4 @@
+package org.jeudego.pairgoth.store
+
+class FileStore {
+}
\ No newline at end of file
diff --git a/webapp/src/main/kotlin/org/jeudego/pairgoth/store/MemoryStore.kt b/webapp/src/main/kotlin/org/jeudego/pairgoth/store/MemoryStore.kt
new file mode 100644
index 0000000..e8b22fd
--- /dev/null
+++ b/webapp/src/main/kotlin/org/jeudego/pairgoth/store/MemoryStore.kt
@@ -0,0 +1,4 @@
+package org.jeudego.pairgoth.store
+
+class MemoryStore {
+}
\ No newline at end of file
diff --git a/webapp/src/main/kotlin/org/jeudego/pairgoth/store/StoreImplementation.kt b/webapp/src/main/kotlin/org/jeudego/pairgoth/store/StoreImplementation.kt
new file mode 100644
index 0000000..e5bd17b
--- /dev/null
+++ b/webapp/src/main/kotlin/org/jeudego/pairgoth/store/StoreImplementation.kt
@@ -0,0 +1,4 @@
+package org.jeudego.pairgoth.store
+
+interface StoreImplementation {
+}
\ No newline at end of file