feat: Add support for NuShell scripts

recipe/src/module.rs

@@ -91,6 +91,13 @@ impl<'a> ModuleRequiredFields<'a> {
         }
     }
 
+    #[must_use]
+    pub fn is_local_source(&self) -> bool {
+        self.source
+            .as_deref()
+            .is_some_and(|source| source == "local")
+    }
+
     #[must_use]
     pub fn generate_akmods_info(&'a self, os_version: &u64) -> AkmodsInfo {
         #[derive(Debug, Default, Copy, Clone)]

recipe/src/recipe.rs

@@ -54,6 +54,11 @@ pub struct Recipe<'a> {
     #[builder(into)]
     pub alt_tags: Option<Vec<String>>,
 
+    /// The version of nushell to use for modules.
+    #[builder(into)]
+    #[serde(skip_serializing_if = "Option::is_none", rename = "nushell-version")]
+    pub nushell_version: Option<Cow<'a, str>>,
+
     /// The stages extension of the recipe.
     ///
     /// This hold the list of stages that can