diff --git a/backend/src/api/aur.rs b/backend/src/api/aur.rs
new file mode 100644
index 0000000..f2ed0bc
--- /dev/null
+++ b/backend/src/api/aur.rs
@@ -0,0 +1,25 @@
+use crate::aur::aur::query_aur;
+use rocket::serde::json::Json;
+
+use rocket::get;
+
+use crate::api::types::input::ApiPackage;
+use rocket_okapi::openapi;
+
+#[openapi(tag = "aur")]
+#[get("/search?<query>")]
+pub async fn search(query: &str) -> Result<Json<Vec<ApiPackage>>, String> {
+    return match query_aur(query).await {
+        Ok(v) => {
+            let mapped = v
+                .iter()
+                .map(|x| ApiPackage {
+                    name: x.name.clone(),
+                    version: x.version.clone(),
+                })
+                .collect();
+            Ok(Json(mapped))
+        }
+        Err(e) => Err(format!("{}", e)),
+    };
+}
diff --git a/backend/src/api/backend.rs b/backend/src/api/backend.rs
index 3511a37..70b0be5 100644
--- a/backend/src/api/backend.rs
+++ b/backend/src/api/backend.rs
@@ -1,6 +1,7 @@
+use crate::api::aur::*;
 use crate::api::build::*;
-use crate::api::list::*;
 use crate::api::package::*;
+use crate::api::stats::*;
 use crate::api::version::*;
 use rocket::Route;
 use rocket_okapi::openapi_get_routes;
diff --git a/backend/src/api/build.rs b/backend/src/api/build.rs
index 0210446..69a21ef 100644
--- a/backend/src/api/build.rs
+++ b/backend/src/api/build.rs
@@ -3,29 +3,16 @@ use crate::db::prelude::Builds;
 use crate::db::{builds, packages, versions};
 use rocket::response::status::NotFound;
 use rocket::serde::json::Json;
-use rocket::serde::{Deserialize, Serialize};
 use rocket::{delete, get, State};
-use rocket_okapi::okapi::schemars;
-use rocket_okapi::{openapi, JsonSchema};
+
+use crate::api::types::input::ListBuildsModel;
+use rocket_okapi::openapi;
 use sea_orm::ColumnTrait;
 use sea_orm::QueryFilter;
 use sea_orm::{
-    DatabaseConnection, EntityTrait, FromQueryResult, ModelTrait, QueryOrder, QuerySelect,
-    RelationTrait,
+    DatabaseConnection, EntityTrait, ModelTrait, QueryOrder, QuerySelect, RelationTrait,
 };
 
-#[derive(FromQueryResult, Deserialize, JsonSchema, Serialize)]
-#[serde(crate = "rocket::serde")]
-pub struct ListPackageModel {
-    id: i32,
-    name: String,
-    status: i32,
-    outofdate: bool,
-    latest_version: Option<String>,
-    latest_version_id: Option<i32>,
-    latest_aur_version: String,
-}
-
 #[openapi(tag = "build")]
 #[get("/build/<buildid>/output?<startline>")]
 pub async fn build_output(
@@ -46,7 +33,7 @@ pub async fn build_output(
         Some(v) => match startline {
             None => Ok(v),
             Some(startline) => {
-                let output: Vec<String> = v.split("\n").map(|x| x.to_string()).collect();
+                let output: Vec<String> = v.split('\n').map(|x| x.to_string()).collect();
                 let len = output.len();
                 let len_missing = len as i32 - startline;
 
@@ -59,7 +46,7 @@ pub async fn build_output(
                         0
                     })
                     .rev()
-                    .map(|x1| x1.clone())
+                    .cloned()
                     .collect::<Vec<_>>();
 
                 let output = output.join("\n");
@@ -69,18 +56,6 @@ pub async fn build_output(
     };
 }
 
-#[derive(FromQueryResult, Deserialize, JsonSchema, Serialize)]
-#[serde(crate = "rocket::serde")]
-pub struct ListBuildsModel {
-    id: i32,
-    pkg_id: i32,
-    pkg_name: String,
-    version: String,
-    status: i32,
-    start_time: Option<u32>,
-    end_time: Option<u32>,
-}
-
 #[openapi(tag = "build")]
 #[get("/builds?<pkgid>&<limit>")]
 pub async fn list_builds(
diff --git a/backend/src/api/mod.rs b/backend/src/api/mod.rs
index 8df1443..8e5a9c3 100644
--- a/backend/src/api/mod.rs
+++ b/backend/src/api/mod.rs
@@ -1,7 +1,9 @@
+mod aur;
 pub mod backend;
 mod build;
 #[cfg(feature = "static")]
 pub mod embed;
-mod list;
 mod package;
+mod stats;
+mod types;
 mod version;
diff --git a/backend/src/api/package.rs b/backend/src/api/package.rs
index f642219..eb127da 100644
--- a/backend/src/api/package.rs
+++ b/backend/src/api/package.rs
@@ -1,4 +1,3 @@
-use crate::api::build::ListPackageModel;
 use crate::builder::types::Action;
 use crate::db::migration::{JoinType, Order};
 use crate::db::prelude::Packages;
@@ -8,20 +7,16 @@ use crate::package::delete::package_delete;
 use crate::package::update::package_update;
 use rocket::response::status::{BadRequest, NotFound};
 use rocket::serde::json::Json;
-use rocket::serde::Deserialize;
+
 use rocket::{delete, get, post, State};
-use rocket_okapi::okapi::schemars;
-use rocket_okapi::{openapi, JsonSchema};
+
+use crate::api::types::input::ListPackageModel;
+use crate::api::types::output::{AddBody, UpdateBody};
+use rocket_okapi::openapi;
 use sea_orm::DatabaseConnection;
 use sea_orm::{ColumnTrait, EntityTrait, QueryFilter, QueryOrder, QuerySelect, RelationTrait};
 use tokio::sync::broadcast::Sender;
 
-#[derive(Deserialize, JsonSchema)]
-#[serde(crate = "rocket::serde")]
-pub struct AddBody {
-    name: String,
-}
-
 #[openapi(tag = "Packages")]
 #[post("/package", data = "<input>")]
 pub async fn package_add_endpoint(
@@ -34,12 +29,6 @@ pub async fn package_add_endpoint(
         .map_err(|e| BadRequest(Some(e.to_string())))
 }
 
-#[derive(Deserialize, JsonSchema)]
-#[serde(crate = "rocket::serde")]
-pub struct UpdateBody {
-    force: bool,
-}
-
 #[openapi(tag = "Packages")]
 #[post("/package/<id>/update", data = "<input>")]
 pub async fn package_update_endpoint(
@@ -50,7 +39,7 @@ pub async fn package_update_endpoint(
 ) -> Result<Json<i32>, BadRequest<String>> {
     package_update(db, id, input.force, tx)
         .await
-        .map(|e| Json(e))
+        .map(Json)
         .map_err(|e| BadRequest(Some(e.to_string())))
 }
 
diff --git a/backend/src/api/list.rs b/backend/src/api/stats.rs
similarity index 56%
rename from backend/src/api/list.rs
rename to backend/src/api/stats.rs
index 7d0fc29..6c5693e 100644
--- a/backend/src/api/list.rs
+++ b/backend/src/api/stats.rs
@@ -1,53 +1,17 @@
-use crate::aur::aur::query_aur;
+use crate::db::builds;
 use crate::db::prelude::{Builds, Packages};
-use crate::db::{builds};
 use crate::utils::dir_size::dir_size;
+
 use rocket::response::status::NotFound;
 use rocket::serde::json::Json;
-use rocket::serde::{Deserialize, Serialize};
+
 use rocket::{get, State};
-use rocket_okapi::okapi::schemars;
-use rocket_okapi::{openapi, JsonSchema};
+
+use crate::api::types::input::ListStats;
+use rocket_okapi::openapi;
+use sea_orm::PaginatorTrait;
 use sea_orm::{ColumnTrait, QueryFilter};
-use sea_orm::{DatabaseConnection, EntityTrait, FromQueryResult};
-use sea_orm::{PaginatorTrait};
-
-#[derive(Serialize, JsonSchema)]
-#[serde(crate = "rocket::serde")]
-pub struct ApiPackage {
-    name: String,
-    version: String,
-}
-
-#[openapi(tag = "aur")]
-#[get("/search?<query>")]
-pub async fn search(query: &str) -> Result<Json<Vec<ApiPackage>>, String> {
-    return match query_aur(query).await {
-        Ok(v) => {
-            let mapped = v
-                .iter()
-                .map(|x| ApiPackage {
-                    name: x.name.clone(),
-                    version: x.version.clone(),
-                })
-                .collect();
-            Ok(Json(mapped))
-        }
-        Err(e) => Err(format!("{}", e)),
-    };
-}
-
-#[derive(FromQueryResult, Deserialize, JsonSchema, Serialize)]
-#[serde(crate = "rocket::serde")]
-pub struct ListStats {
-    total_builds: u32,
-    failed_builds: u32,
-    avg_queue_wait_time: u32,
-    avg_build_time: u32,
-    repo_storage_size: u64,
-    active_builds: u32,
-    total_packages: u32,
-}
+use sea_orm::{DatabaseConnection, EntityTrait};
 
 #[openapi(tag = "stats")]
 #[get("/stats")]
diff --git a/backend/src/api/types/input.rs b/backend/src/api/types/input.rs
new file mode 100644
index 0000000..e0a2327
--- /dev/null
+++ b/backend/src/api/types/input.rs
@@ -0,0 +1,47 @@
+use rocket::serde::{Deserialize, Serialize};
+use rocket_okapi::okapi::schemars;
+use rocket_okapi::JsonSchema;
+use sea_orm::FromQueryResult;
+
+#[derive(Serialize, JsonSchema)]
+#[serde(crate = "rocket::serde")]
+pub struct ApiPackage {
+    pub name: String,
+    pub version: String,
+}
+
+#[derive(FromQueryResult, Deserialize, JsonSchema, Serialize)]
+#[serde(crate = "rocket::serde")]
+pub struct ListPackageModel {
+    pub id: i32,
+    pub name: String,
+    pub status: i32,
+    pub outofdate: bool,
+    pub latest_version: Option<String>,
+    pub latest_version_id: Option<i32>,
+    pub latest_aur_version: String,
+}
+
+#[derive(FromQueryResult, Deserialize, JsonSchema, Serialize)]
+#[serde(crate = "rocket::serde")]
+pub struct ListBuildsModel {
+    id: i32,
+    pkg_id: i32,
+    pkg_name: String,
+    version: String,
+    status: i32,
+    start_time: Option<u32>,
+    end_time: Option<u32>,
+}
+
+#[derive(FromQueryResult, Deserialize, JsonSchema, Serialize)]
+#[serde(crate = "rocket::serde")]
+pub struct ListStats {
+    pub total_builds: u32,
+    pub failed_builds: u32,
+    pub avg_queue_wait_time: u32,
+    pub avg_build_time: u32,
+    pub repo_storage_size: u64,
+    pub active_builds: u32,
+    pub total_packages: u32,
+}
diff --git a/backend/src/api/types/mod.rs b/backend/src/api/types/mod.rs
new file mode 100644
index 0000000..7d1a548
--- /dev/null
+++ b/backend/src/api/types/mod.rs
@@ -0,0 +1,2 @@
+pub mod input;
+pub mod output;
diff --git a/backend/src/api/types/output.rs b/backend/src/api/types/output.rs
new file mode 100644
index 0000000..b2f52ca
--- /dev/null
+++ b/backend/src/api/types/output.rs
@@ -0,0 +1,15 @@
+use rocket::serde::Deserialize;
+use rocket_okapi::okapi::schemars;
+use rocket_okapi::JsonSchema;
+
+#[derive(Deserialize, JsonSchema)]
+#[serde(crate = "rocket::serde")]
+pub struct AddBody {
+    pub(crate) name: String,
+}
+
+#[derive(Deserialize, JsonSchema)]
+#[serde(crate = "rocket::serde")]
+pub struct UpdateBody {
+    pub(crate) force: bool,
+}
diff --git a/backend/src/aur/aur.rs b/backend/src/aur/aur.rs
index fd063f1..eeb248a 100644
--- a/backend/src/aur/aur.rs
+++ b/backend/src/aur/aur.rs
@@ -52,7 +52,7 @@ pub async fn download_pkgbuild(url: &str, dest_dir: &str) -> anyhow::Result<Stri
     };
 
     // Check if the directory exists
-    if !fs::metadata(dest_dir).is_ok() {
+    if fs::metadata(dest_dir).is_err() {
         // Create the directory if it does not exist
         fs::create_dir(dest_dir)?;
     }
@@ -71,7 +71,7 @@ async fn download_file(url: &str) -> anyhow::Result<(Vec<u8>, String)> {
         .path_segments()
         .and_then(|segments| segments.last())
         .ok_or(anyhow!("no segments"))?
-        .split(".")
+        .split('.')
         .collect::<Vec<&str>>()
         .first()
         .ok_or(anyhow!(""))?
diff --git a/backend/src/main.rs b/backend/src/main.rs
index 878ef38..9c6dfd5 100644
--- a/backend/src/main.rs
+++ b/backend/src/main.rs
@@ -34,7 +34,7 @@ fn main() {
 
     t.block_on(async move {
         // create folder for db stuff
-        if !fs::metadata("./db").is_ok() {
+        if fs::metadata("./db").is_err() {
             fs::create_dir("./db").unwrap();
         }
 
@@ -45,7 +45,7 @@ fn main() {
         Migrator::up(&db, None).await.unwrap();
 
         // create repo folder
-        if !fs::metadata("./repo").is_ok() {
+        if fs::metadata("./repo").is_err() {
             fs::create_dir("./repo").unwrap();
 
             let tar_gz = File::create("./repo/repo.db.tar.gz").unwrap();
@@ -74,9 +74,11 @@ fn main() {
         start_aur_version_checking(db.clone());
 
         let backend_handle = tokio::spawn(async {
-            let mut config = Config::default();
-            config.address = "0.0.0.0".parse().unwrap();
-            config.port = 8081;
+            let config = Config {
+                address: "0.0.0.0".parse().unwrap(),
+                port: 8081,
+                ..Default::default()
+            };
 
             let rock = rocket::custom(config)
                 .manage(db)
@@ -100,9 +102,11 @@ fn main() {
         });
 
         let repo_handle = tokio::spawn(async {
-            let mut config = Config::default();
-            config.address = "0.0.0.0".parse().unwrap();
-            config.port = 8080;
+            let config = Config {
+                address: "0.0.0.0".parse().unwrap(),
+                port: 8080,
+                ..Default::default()
+            };
 
             let launch_result = rocket::custom(config)
                 .mount("/", FileServer::from("./repo"))
@@ -116,6 +120,4 @@ fn main() {
 
         join_all([repo_handle, backend_handle]).await;
     });
-
-    return;
 }
diff --git a/backend/src/package/add.rs b/backend/src/package/add.rs
index e97404e..9bad7af 100644
--- a/backend/src/package/add.rs
+++ b/backend/src/package/add.rs
@@ -19,10 +19,11 @@ pub async fn package_add(
     // remove leading and trailing whitespaces
     let pkg_name = pkg_name.trim();
 
-    if let Some(..) = Packages::find()
+    if Packages::find()
         .filter(packages::Column::Name.eq(pkg_name))
         .one(&txn)
         .await?
+        .is_some()
     {
         return Err(anyhow!("Package already exists"));
     }
diff --git a/backend/src/package/update.rs b/backend/src/package/update.rs
index fface1e..e6e14e4 100644
--- a/backend/src/package/update.rs
+++ b/backend/src/package/update.rs
@@ -29,7 +29,7 @@ pub async fn package_update(
 
     let version_model = match Versions::find()
         .filter(versions::Column::Version.eq(pkg.version.clone()))
-        .filter(versions::Column::PackageId.eq(pkg.id.clone()))
+        .filter(versions::Column::PackageId.eq(pkg.id))
         .one(&txn)
         .await?
     {
diff --git a/backend/src/pkgbuild/build.rs b/backend/src/pkgbuild/build.rs
index 3f3ca2f..6933eac 100644
--- a/backend/src/pkgbuild/build.rs
+++ b/backend/src/pkgbuild/build.rs
@@ -7,7 +7,7 @@ use tokio::sync::broadcast::Sender;
 // todo consider removing pkg_vers from attribute list
 pub async fn build_pkgbuild(
     folder_path: String,
-    pkg_vers: &str,
+    _pkg_vers: &str,
     pkg_name: &str,
     tx: Sender<String>,
 ) -> anyhow::Result<Vec<String>> {
@@ -26,7 +26,7 @@ pub async fn build_pkgbuild(
     fs::write(&script_file, makepkg).expect("Unable to write script to file");
 
     let mut child = tokio::process::Command::new("bash")
-        .args(&[
+        .args([
             script_file.as_os_str().to_str().unwrap(),
             "-f",
             "--noconfirm",
@@ -106,7 +106,7 @@ fn locate_built_packages(pkg_name: String, folder_path: String) -> anyhow::Resul
         }
     }
 
-    return if pkg_names.is_empty() {
+    if pkg_names.is_empty() {
         Err(anyhow!("Built package not found"))
     } else {
         // expect at least one of the packages to start with the package name
@@ -116,5 +116,5 @@ fn locate_built_packages(pkg_name: String, folder_path: String) -> anyhow::Resul
             ));
         }
         Ok(pkg_names)
-    };
+    }
 }