diff --git a/.gitignore b/.gitignore
index 56b4379..4108571 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,4 +6,4 @@ static
 pkg 
 ./Cargo.lock
 package-lock.json
-data
+/data/
diff --git a/src/data/user.rs b/src/data/user.rs
new file mode 100644
index 0000000..9815690
--- /dev/null
+++ b/src/data/user.rs
@@ -0,0 +1,3 @@
+
+pub type PlayerId = u32;
+