chore: checkpoint before Python removal

vendor/stacker/build.rs

@@ -0,0 +1,13 @@
+use std::env;
+
+fn main() {
+    let target = env::var("TARGET").unwrap();
+    let mut cfg = cc::Build::new();
+    if target.contains("windows") {
+        cfg.define("WINDOWS", None);
+        cfg.file("src/arch/windows.c");
+        cfg.include("src/arch").compile("libstacker.a");
+    } else {
+        return;
+    }
+}