diff --git a/lib.nix b/lib.nix
index b7360db..22b5dd9 100644
--- a/lib.nix
+++ b/lib.nix
@@ -129,7 +129,7 @@ rec {
 
     mkSelString = attrs: builtins.toJSON (attrs // {
       inherit toolchain_version;
-      system = hostSystem.nameFull;
+      system = hostSystem.name;
       mize_version = "0.0.1";
     });
 
diff --git a/mize_module.nix b/mize_module.nix
index 7c1745c..9f8befa 100644
--- a/mize_module.nix
+++ b/mize_module.nix
@@ -102,6 +102,7 @@ module = { mkMizeRustModule, mkMizeRustShell, hostSystem, pkgsCross, pkgs, lib,
     mizeBuildPhase = ''
       cd $build_dir
       RUST_LOG=off wasm-pack build --target no-modules --dev --out-dir $out -- --features wasm-target --no-default-features
+      cat $build_dir/src/platform/wasm/init.js >> $out/mize.js
     '';
     mizeInstallPhase = "";
 
diff --git a/src/core/item.rs b/src/core/item.rs
index b3bd777..259871d 100644
--- a/src/core/item.rs
+++ b/src/core/item.rs
@@ -272,20 +272,29 @@ pub fn data_from_string(data_string: String) -> MizeResult<ItemData> {
     }
 
     for option in data_string.split(":") {
+        //trace!("data_from_string: option: {}", option);
         if option == "".to_owned() {
             continue;
         }
 
         let path = option.split("=").nth(0)
             .ok_or(MizeError::new().msg(format!("Failed to parse Option: option '{}' has an empty path (thing before =)", option)))?;
+
+        //trace!("data_from_string: path: {}", path);
+
         let value = option.split("=").nth(1)
             .ok_or(MizeError::new().msg(format!("Failed to parse Option: option '{}' has an empty value (thing after =)", option)))?;
+        //trace!("data_from_string: value: {}", value);
+        
         let mut path_vec = Vec::new();
         path_vec.extend(path.split("."));
 
+        //trace!("data_from_string: path_vec: {:?}", path_vec);
+
         data.set_path(path_vec, ItemData::parse(value))?;
     }
 
+    trace!("data_from_string: data: {}", data);
     return Ok(data);
 }
 
@@ -369,6 +378,7 @@ pub fn item_data_set_path(data: &mut CborValue, path: Vec<String>, data_to_set:
     let path_el = match path_iter.nth(0) {
         Some(val) => val,
         None => {
+            //trace!("item_data_set_path: base_case");
             // our base case
             *data = data_to_set.to_owned();
             return Ok(());
@@ -379,7 +389,7 @@ pub fn item_data_set_path(data: &mut CborValue, path: Vec<String>, data_to_set:
             for (key, val) in &mut * map {
                 if let CborValue::Text(key_str) = key {
                     if key_str == &path_el {
-                        //path_iter.next();
+                        //trace!("item_data_set_path: setting key {key_str} in map with recursive call");
                         return item_data_set_path(val, path_iter.collect(), data_to_set);
                     }
                 }
@@ -387,11 +397,16 @@ pub fn item_data_set_path(data: &mut CborValue, path: Vec<String>, data_to_set:
 
             // if we get here, that means, the key (which is the variable path_el) does not exist
             // in the map
-            // so add it
-            map.push((CborValue::Text(path_el.clone()), data_to_set.to_owned()));
+            // so add it... but also with a recursive call which is needed, in case path_iter
+            // longer than 1
+            //trace!("item_data_set_path: adding key {path_el} to map");
+            let mut inner_value = CborValue::Null;
+            item_data_set_path(&mut inner_value, path_iter.collect(), data_to_set);
+            map.push((CborValue::Text(path_el.clone()), inner_value));
             return Ok(());
         },
         CborValue::Null => {
+            //trace!("item_data_set_path: CborValue::Null case");
             let mut inner_value = CborValue::Null;
             item_data_set_path(&mut inner_value, path_iter.collect(), data_to_set);
 
diff --git a/src/platform/os/mod.rs b/src/platform/os/mod.rs
index d41f3fc..aaf3c0f 100644
--- a/src/platform/os/mod.rs
+++ b/src/platform/os/mod.rs
@@ -150,10 +150,24 @@ pub fn get_module_hash(instance: &mut Instance, name: &str, mut options: ItemDat
 
     let mut selector_data = instance.get("0/config/selector")?.as_data_full()?;
 
-    selector_data.set_path("modName", name)?;
+    // handle the case, when we want a module for not the system we are running on...
+    let mut name_parts = name.split(".");
+    if name_parts.nth(0).ok_or(mize_err!("no 0th element in the modName"))? == "cross" {
+        let system = name_parts.nth(1).ok_or(mize_err!("no 1th element in the modName"))?;
+        let mod_name: String = name_parts.skip(2).collect();
+        if mod_name == "" {
+            return Err(mize_err!("no 2nd element in the modName"));
+        }
+
+        selector_data.set_path("system", system)?;
+        selector_data.set_path("modName", mod_name)?;
+    } else {
+        selector_data.set_path("modName", name)?;
+    }
 
     selector_data.merge(options);
 
+    // important to produce the same hash for the sama selector data
     selector_data.sort_keys();
 
     let selector_str = selector_data.to_json()?;
@@ -217,6 +231,7 @@ fn download_module(instance: &mut Instance, store_path: &str, module_url: &str,
 pub fn fetch_module(instance: &mut Instance, module_name: &str) -> MizeResult<String> {
 
     if let Ok(module_path) = instance.get(format!("self/config/module_dir/{}", module_name))?.value_string() {
+        // in case a dir is configured, which holds the modules output
         return Ok(module_path);
     } else {
         // if null, load it from the url