diff --git a/AobaClient/.env b/AobaClient/.env
new file mode 100644
index 0000000..4de3f62
--- /dev/null
+++ b/AobaClient/.env
@@ -0,0 +1 @@
+APP_VERSION=Debug
diff --git a/AobaClient/src/env.rs b/AobaClient/src/env.rs
new file mode 100644
index 0000000..a0c6a04
--- /dev/null
+++ b/AobaClient/src/env.rs
@@ -0,0 +1,4 @@
+// This file is automatically generated by build.rs
+
+#[allow(dead_code)]
+pub const APP_VERSION: &'static str = "Debug";