diff --git a/src/engine.rs b/src/engine.rs
index 7fe88c4..da6615b 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -1,15 +1,9 @@
 use std::future::Future;
 use mlua::{FromLua, IntoLua, Lua, UserData, UserDataFields, Value};
 use std::net::{IpAddr, Ipv4Addr, SocketAddr};
-use std::path::{Path, PathBuf};
+use std::path::PathBuf;
 use anyhow::anyhow;
 use async_tftp::packet::Error;
-use futures::TryFutureExt;
-use tokio::sync::oneshot::error::RecvError;
-
-pub struct LuaRunner {
-
-}
 
 #[derive(Clone, Debug)]
 pub struct Client {
@@ -181,7 +175,7 @@ impl EngineImpl {
             .into_lua(lua)
             .map_err(|err| Error::Msg(err.to_string()))?;
         let path = path.to_str().ok_or(Error::FileNotFound)?.to_owned();
-        let (resource, size): (Resource, Option<u64>) = resolver
+        let resource: Resource = resolver
             .call_async((path, lua_client.clone(), size))
             .await
             .map_err(|err| Error::Msg(err.to_string()))?;
@@ -200,8 +194,6 @@ impl Engine {
     pub fn new() -> anyhow::Result<(Self, EngineImpl)> {
         let lua = Box::leak(Box::new(mlua::Lua::new()));
         // Add stdlib
-        let handler_fn = lua.create_registry_value(0)?;
-
         let (req_snd, req_rcv) = tokio::sync::mpsc::channel(1);
 
         let engine = Self {
diff --git a/src/handler.rs b/src/handler.rs
index 64107ae..1b34897 100644
--- a/src/handler.rs
+++ b/src/handler.rs
@@ -1,15 +1,12 @@
 // SPDX-License-Identifier: MIT
-use std::net::{IpAddr, Ipv4Addr, SocketAddr};
-use std::future::Future;
-use std::path::{Path, PathBuf};
+use std::net::SocketAddr;
+use std::path::Path;
 use std::sync::Arc;
-use async_lock::Mutex;
 use async_tftp::async_trait;
 use async_tftp::packet::Error;
 use async_tftp::server::handlers::{DirHandler, DirHandlerMode};
 use futures::{AsyncRead, AsyncWrite, TryStreamExt};
-use mlua::{FromLua, UserDataFields};
-use reqwest::Body;
+use reqwest::{Body, StatusCode};
 use tokio_util::compat::TokioAsyncWriteCompatExt;
 use crate::engine::{Client, Engine, Resource};
 
diff --git a/src/main.rs b/src/main.rs
index f183dac..fb384e0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -43,7 +43,7 @@ async fn main() -> anyhow::Result<()> {
 
     local_set.spawn_local(engine_impl.run());
 
-    let mut handler = handler::Handler::new(
+    let handler = handler::Handler::new(
         engine.clone(),
         opts.serve.as_ref()
             .map(PathBuf::as_path)