diff --git a/src/config.rs b/src/config.rs
index 9b89b11..2614537 100644
--- a/src/config.rs
+++ b/src/config.rs
@@ -2,11 +2,11 @@ use bevy::prelude::Color;
 use dirs::home_dir;
 use serde::{Deserialize, Serialize};
 use serde_yaml::{self};
-use std::fs::{create_dir, create_dir_all, read_to_string, File, OpenOptions};
+use std::fs::{create_dir_all, read_to_string, File, OpenOptions};
 use std::io::BufWriter;
 use std::{
     fs::remove_file,
-    io::{stdout, Read, Write},
+    io::Write,
     path::PathBuf,
 };
 
@@ -136,9 +136,9 @@ pub fn write_fftargs_to_config(args: &FFTArgs) {
     overwrite_non_default_args!(&mut default_args.volume, args.volume);
 
     let cfg_path = config_path();
-    create_dir_all(cfg_path.as_path().parent().unwrap());
+    create_dir_all(cfg_path.as_path().parent().unwrap()).unwrap();
 
-    let mut config_file = OpenOptions::new()
+    let config_file = OpenOptions::new()
         .write(true)
         .create(true)
         .open(&cfg_path)
@@ -153,7 +153,7 @@ pub fn write_fftargs_to_config(args: &FFTArgs) {
 
     cfg_yaml.retain(|x| x.contains(":"));
 
-    remove_file(&cfg_path);
+    remove_file(&cfg_path).unwrap();
 
     let f = File::create(&cfg_path).expect("Unable to create file");
     let mut f = BufWriter::new(f);
@@ -161,13 +161,14 @@ pub fn write_fftargs_to_config(args: &FFTArgs) {
         .expect("Unable to write data");
 }
 
+#[allow(dead_code)]
 pub fn reset_config_file() {
     let default_user_config = ConfigFFTArgs::default();
 
     let cfg_path = config_path();
-    create_dir_all(cfg_path.as_path().parent().unwrap());
+    create_dir_all(cfg_path.as_path().parent().unwrap()).unwrap();
 
-    let mut config_file = OpenOptions::new()
+    let config_file = OpenOptions::new()
         .write(true)
         .create(true)
         .open(cfg_path)
diff --git a/src/main.rs b/src/main.rs
index 1b82a87..b2db0f6 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -1,5 +1,3 @@
-#![allow(unused)]
-
 mod args;
 mod config;
 mod fft;
@@ -12,27 +10,17 @@ use systems::egui::*;
 use systems::get_keyboard_input::*;
 use systems::startup::*;
 use systems::update_fft::*;
-use systems::update_frame_counters;
 use systems::update_frame_counters::*;
 use systems::update_view_settings::*;
 
-use bevy::render::mesh::VertexAttributeValues;
-use bevy::sprite::Anchor;
-use bevy::{
-    app::AppExit,
-    prelude::*,
-    sprite::{MaterialMesh2dBundle, Mesh2dHandle},
-};
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
+use bevy::prelude::*;
+use bevy_egui::EguiPlugin;
 use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
+use rodio::{Decoder, OutputStream};
 use std::ffi::OsString;
 use std::fs::File;
 use std::io::BufReader;
 use std::path::PathBuf;
-use std::time::Duration;
 use std::time::Instant;
 
 // TODO: Add to other package managers
diff --git a/src/systems/egui.rs b/src/systems/egui.rs
index 30e474c..bc9e63a 100644
--- a/src/systems/egui.rs
+++ b/src/systems/egui.rs
@@ -1,29 +1,15 @@
 use crate::{
-    cli_args_to_fft_args, config_path, parse_cli_args, reset_config_file, write_fftargs_to_config,
+    cli_args_to_fft_args, config_path, parse_cli_args, write_fftargs_to_config,
     AppState, FFTArgs, FFTState,
 };
-use bevy::render::mesh::VertexAttributeValues;
-use bevy::sprite::Anchor;
-use bevy::{
-    app::AppExit,
-    prelude::*,
-    sprite::{MaterialMesh2dBundle, Mesh2dHandle},
-};
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
-use std::ffi::OsString;
-use std::fs::File;
-use std::io::BufReader;
-use std::path::PathBuf;
-use std::time::Duration;
+use bevy::prelude::*;
+use bevy_egui::egui::Align2;
+use bevy_egui::{egui, EguiContexts};
+use clap::Parser;
 
 pub fn ui_example_system(
     mut contexts: EguiContexts,
-    keyboard_input: Res<ButtonInput<KeyCode>>,
-    mut fft_state: ResMut<FFTState>,
+    fft_state: ResMut<FFTState>,
     mut app_state: ResMut<AppState>,
     mut args: ResMut<FFTArgs>,
 ) {
diff --git a/src/systems/get_keyboard_input.rs b/src/systems/get_keyboard_input.rs
index 0f8b28a..1a6d707 100644
--- a/src/systems/get_keyboard_input.rs
+++ b/src/systems/get_keyboard_input.rs
@@ -1,26 +1,12 @@
-use crate::{AppState, FFTArgs, FFTState};
-use bevy::render::mesh::VertexAttributeValues;
-use bevy::sprite::Anchor;
+use crate::{AppState, FFTArgs};
 use bevy::{
     app::AppExit,
     prelude::*,
-    sprite::{MaterialMesh2dBundle, Mesh2dHandle},
 };
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
-use std::ffi::OsString;
-use std::fs::File;
-use std::io::BufReader;
-use std::path::PathBuf;
-use std::time::Duration;
 
 pub fn get_keyboard_input(
     keyboard_input: Res<ButtonInput<KeyCode>>,
     mut exit: EventWriter<AppExit>,
-    mut fft_state: ResMut<FFTState>,
     mut app_state: ResMut<AppState>,
     mut args: ResMut<FFTArgs>,
 ) {
diff --git a/src/systems/startup.rs b/src/systems/startup.rs
index 9f8513f..ca2b13c 100644
--- a/src/systems/startup.rs
+++ b/src/systems/startup.rs
@@ -1,21 +1,9 @@
 use crate::{FFTArgs, FFTState};
-use bevy::render::mesh::VertexAttributeValues;
 use bevy::sprite::Anchor;
 use bevy::{
-    app::AppExit,
     prelude::*,
     sprite::{MaterialMesh2dBundle, Mesh2dHandle},
 };
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
-use std::ffi::OsString;
-use std::fs::File;
-use std::io::BufReader;
-use std::path::PathBuf;
-use std::time::Duration;
 
 fn spawn_bars(
     num_bars: u32,
@@ -75,7 +63,6 @@ pub fn startup(
     mut meshes: ResMut<Assets<Mesh>>,
     mut materials: ResMut<Assets<ColorMaterial>>,
     mut fft_queue: ResMut<FFTState>,
-    clear_color: Res<ClearColor>,
     args: Res<FFTArgs>,
 ) {
     commands.spawn(Camera2dBundle::default());
diff --git a/src/systems/update_fft.rs b/src/systems/update_fft.rs
index 3e6b723..0fddc7b 100644
--- a/src/systems/update_fft.rs
+++ b/src/systems/update_fft.rs
@@ -1,33 +1,14 @@
 use crate::fft::time_interpolate;
 use crate::*;
 use bevy::render::mesh::VertexAttributeValues;
-use bevy::sprite::Anchor;
-use bevy::{
-    app::AppExit,
-    prelude::*,
-    sprite::{MaterialMesh2dBundle, Mesh2dHandle},
-};
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
-use std::ffi::OsString;
-use std::fs::File;
-use std::io::BufReader;
-use std::path::PathBuf;
-use std::time::Duration;
+use bevy::prelude::*;
 
 pub fn update_fft(
-    mut commands: Commands,
     mut window: Query<&mut Window>,
     mut meshes: ResMut<Assets<Mesh>>,
-    mut materials: ResMut<Assets<ColorMaterial>>,
-    mut fft_state: ResMut<FFTState>,
-    mut app_state: ResMut<AppState>,
-    mut args: ResMut<FFTArgs>,
-    mut clear_color: ResMut<ClearColor>,
-    mut text_query: Query<&mut Text>,
+    fft_state: ResMut<FFTState>,
+    app_state: ResMut<AppState>,
+    args: ResMut<FFTArgs>,
 ) {
     let h = window.single_mut().height();
     let interval = app_state.rendering_fps / app_state.fft_fps;
diff --git a/src/systems/update_frame_counters.rs b/src/systems/update_frame_counters.rs
index 8a7e20d..3ab8af0 100644
--- a/src/systems/update_frame_counters.rs
+++ b/src/systems/update_frame_counters.rs
@@ -1,24 +1,7 @@
-use crate::fft::time_interpolate;
 use crate::*;
-use bevy::render::mesh::VertexAttributeValues;
-use bevy::sprite::Anchor;
-use bevy::{
-    app::AppExit,
-    prelude::*,
-    sprite::{MaterialMesh2dBundle, Mesh2dHandle},
-};
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
-use std::ffi::OsString;
-use std::fs::File;
-use std::io::BufReader;
-use std::path::PathBuf;
-use std::time::Duration;
+use bevy::prelude::*;
 
-pub fn update_frame_counters(mut fft_state: ResMut<FFTState>, mut args: ResMut<FFTArgs>) {
+pub fn update_frame_counters(mut fft_state: ResMut<FFTState>) {
     let elapsed_time = fft_state.fft_timer.elapsed().as_secs_f64();
     fft_state.fft_frame_counter = (elapsed_time / TIME_BETWEEN_FFT_FRAMES) as usize;
     fft_state.total_frame_counter = (elapsed_time / TIME_BETWEEN_FRAMES) as usize;
diff --git a/src/systems/update_view_settings.rs b/src/systems/update_view_settings.rs
index 55ee947..90fc87a 100644
--- a/src/systems/update_view_settings.rs
+++ b/src/systems/update_view_settings.rs
@@ -1,30 +1,13 @@
-use crate::fft::time_interpolate;
 use crate::*;
 use bevy::render::mesh::VertexAttributeValues;
-use bevy::sprite::{Anchor, Material2d};
-use bevy::{
-    app::AppExit,
-    prelude::*,
-    sprite::{MaterialMesh2dBundle, Mesh2dHandle},
-};
-use bevy_egui::egui::{Align2, Color32, Stroke};
-use bevy_egui::{egui, EguiContexts, EguiPlugin};
-use clap::{ArgAction, Parser};
-use rayon::iter::{IntoParallelRefMutIterator, ParallelIterator};
-use rodio::{source::Source, Decoder, OutputStream};
-use std::ffi::OsString;
-use std::fs::File;
-use std::io::BufReader;
-use std::path::PathBuf;
-use std::time::Duration;
+use bevy::prelude::*;
 
 pub fn update_view_settings(
-    mut commands: Commands,
     mut window: Query<&mut Window>,
     mut meshes: ResMut<Assets<Mesh>>,
     mut materials: ResMut<Assets<ColorMaterial>>,
-    mut app_state: ResMut<FFTState>,
-    mut args: ResMut<FFTArgs>,
+    app_state: Res<FFTState>,
+    args: Res<FFTArgs>,
     mut clear_color: ResMut<ClearColor>,
     mut text_query: Query<(&mut Transform, &mut Text)>,
     mut differencing_args_query: Query<&mut FFTArgs>,