rewrite most of the handler code :3

src/nix_path.rs

@@ -1,6 +1,6 @@
 const NIX_STORE_PREFIX: &str = "/nix/store/";
 const NIX_HASH_LENGTH: usize = 32;
-pub fn extract_package_name(path: &str) -> Option<String> {
+pub fn extract_package_name(path: &str) -> Option<Vec<&str>> {
     let without_prefix = path.strip_prefix(NIX_STORE_PREFIX)?;
 
     if without_prefix.len() <= NIX_HASH_LENGTH + 1 {
@@ -24,7 +24,10 @@ pub fn extract_package_name(path: &str) -> Option<String> {
         return None;
     }
 
-    Some(name_parts.join("-"))
+    Some(name_parts)
+}
+pub fn extract_package_name_string(path: &str) -> Option<String> {
+    extract_package_name(path).map(|f| f.join("-"))
 }
 
 pub fn extract_full_name(path: &str) -> Option<&str> {