diff --git a/src-tauri/.cargo/config.toml b/src-tauri/.cargo/config.toml
new file mode 100644
index 0000000..7ed6138
--- /dev/null
+++ b/src-tauri/.cargo/config.toml
@@ -0,0 +1,4 @@
+# Cap parallel rustc jobs — 8 concurrent jobs on heavy crates (windows, tauri)
+# exhausted memory on this 16GB machine (LLVM OOM). 4 is a safe ceiling.
+[build]
+jobs = 4