diff --git a/build.rs b/build.rs
index bd6ada6..f46c0cb 100644
--- a/build.rs
+++ b/build.rs
@@ -38,6 +38,8 @@ fn build_client() {
     shell("client", "cargo build --release");
 }
 
+/// Downloads and compiles qemu-nyx and packer and compiles them for the current architecture
+/// This means that cross-compilation is not supported
 fn setup_nyx(out_dir: &str) {
     let packer_path = std::path::PathBuf::from(format!("{out_dir}/packer"));
     let qemu_path = std::path::PathBuf::from(format!("{out_dir}/QEMU-Nyx"));