diff --git a/.cargo/config.toml b/.cargo/config.toml
new file mode 100644
index 0000000..c50406e
--- /dev/null
+++ b/.cargo/config.toml
@@ -0,0 +1,3 @@
+[build]
+# Static musl target by default → portable binary with no glibc version dependency.
+target = "x86_64-unknown-linux-musl"