diff --git a/src/functions/base.rs b/src/functions/base.rs
index 9bf0572..5224eea 100755
--- a/src/functions/base.rs
+++ b/src/functions/base.rs
@@ -5,7 +5,7 @@ use std::path::PathBuf;
 use log::warn;
 
 pub fn install_base_packages(kernel: String) {
-    let mut kernel_to_install: String = String::new();
+    let kernel_to_install: String;
     std::fs::create_dir_all("/mnt/etc").unwrap();
     files::copy_file("/etc/pacman.conf", "/mnt/etc/pacman.conf");
     if kernel.is_empty() {
diff --git a/src/functions/unakite.rs b/src/functions/unakite.rs
index 0391eb0..818e5bb 100644
--- a/src/functions/unakite.rs
+++ b/src/functions/unakite.rs
@@ -154,6 +154,7 @@ pub fn setup_unakite(root: &str, oldroot: &str, efi: bool, efidir: &str, bootdev
         "unakite",
         true,
         "Cp7oN04ZY0PsA", // unakite
+        false,
     );
     exec_eval(
         exec(
diff --git a/src/functions/users.rs b/src/functions/users.rs
index d9a59a3..78cc4bc 100755
--- a/src/functions/users.rs
+++ b/src/functions/users.rs
@@ -5,7 +5,7 @@ use std::process::Command;
 pub fn new_user(username: &str, hasroot: bool, password: &str, do_hash_pass: bool) {
     if do_hash_pass {
         let hashed_pass = &*hash_pass(password).stdout;
-        let password = match std::str::from_utf8(hashed_pass) {
+        let _password = match std::str::from_utf8(hashed_pass) {
             Ok(v) => v,
             Err(e) => panic!("Failed to hash password, invalid UTF-8 sequence {}", e),
         };
@@ -18,7 +18,7 @@ pub fn new_user(username: &str, hasroot: bool, password: &str, do_hash_pass: boo
                 String::from("-s"),
                 String::from("/bin/bash"),
                 String::from("-p"),
-                String::from(password).replace("\n", ""),
+                String::from(password).replace('\n', ""),
                 String::from(username),
             ],
         ),
@@ -56,7 +56,7 @@ pub fn hash_pass(password: &str) -> std::process::Output {
         ])
         .output()
         .expect("Failed to hash password");
-    return output;
+    output
 
 }
 
diff --git a/src/internal/files.rs b/src/internal/files.rs
index 0523fb2..4167da6 100755
--- a/src/internal/files.rs
+++ b/src/internal/files.rs
@@ -32,9 +32,7 @@ pub fn copy_file(path: &str, destpath: &str) {
 pub fn append_file(path: &str, content: &str) -> std::io::Result<()> {
     log::info!("Append '{}' to file {}", content.trim_end(), path);
     let mut file = OpenOptions::new().append(true).open(path)?;
-    file.write_all("\n".as_bytes())?;
-    file.write_all(content.as_bytes())?;
-    file.write("\n".as_bytes())?;
+    file.write_all(format!("\n{content}\n").as_bytes())?;
     Ok(())
 }