Add multilingual language and systems learning tracks

en/rust-practice-20261101/lesson-1/main.rs

@@ -0,0 +1,7 @@
+
+fn main() {
+    let minutes = [1, 2, 3];
+    let mut total = 0;
+    for value in minutes { total += value; }
+    println!("{}", total);
+}