diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index a9c602a..db732e6 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -18,7 +18,7 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Clippy
-      run: cargo clippy --verbose
+      run: cargo clippy --verbose --release
   test:
 
     runs-on: ubuntu-latest
@@ -27,4 +27,4 @@ jobs:
     steps:
     - uses: actions/checkout@v4
     - name: Run tests
-      run: cargo test --verbose
+      run: cargo test --verbose --release
diff --git a/default.nix b/default.nix
deleted file mode 100644
index f8a54f5..0000000
--- a/default.nix
+++ /dev/null
@@ -1,13 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.rustPlatform.buildRustPackage {
-  pname = "nyaa";
-  version =
-    (builtins.fromTOML (
-      builtins.readFile ./Cargo.toml
-    ))
-    .package
-    .version;
-
-  cargoLock.lockFile = ./Cargo.lock;
-  src = pkgs.lib.cleanSource ./.;
-}
diff --git a/makefile b/makefile
index fb37a26..4282bf2 100644
--- a/makefile
+++ b/makefile
@@ -16,7 +16,7 @@ win:
 	cargo build --target $(WINDOWS_TARGET) --release
 
 linux:
-	cargo build --target $(LINUX_TARGET) --release
+	cargo build --target $(LINUX_TARGET) --profile=github
 
 fedora:
 	@mkdir -p "release/$(VERSION)"
diff --git a/shell.nix b/shell.nix
deleted file mode 100644
index ba7a875..0000000
--- a/shell.nix
+++ /dev/null
@@ -1,7 +0,0 @@
-{ pkgs ? import <nixpkgs> {} }:
-pkgs.mkShell {
-  inputsFrom = [(pkgs.callPackage ./default.nix {})];
-  buildInputs =  [
-    pkgs.rustPackages.clippy
-  ];
-}
diff --git a/src/client/qbit.rs b/src/client/qbit.rs
index fc09547..16d07fa 100644
--- a/src/client/qbit.rs
+++ b/src/client/qbit.rs
@@ -1,9 +1,6 @@
 use std::collections::HashMap;
 
-use reqwest::{
-    header::{COOKIE, REFERER, SET_COOKIE},
-    Response, StatusCode,
-};
+use reqwest::{header::REFERER, Response, StatusCode};
 use serde::{Deserialize, Serialize};
 
 use crate::{app::Context, source::Item, util::conv::add_protocol};
@@ -114,43 +111,28 @@ struct QbitForm {
     // rename: String // Disabled
 }
 
-async fn login(qbit: &QbitConfig, client: &reqwest::Client) -> Result<String, String> {
+async fn login(qbit: &QbitConfig, client: &reqwest::Client) -> Result<(), String> {
     let base_url = add_protocol(qbit.base_url.clone(), false);
     let url = format!("{}/api/v2/auth/login", base_url);
     let mut params = HashMap::new();
     params.insert("username", qbit.username.to_owned());
     params.insert("password", qbit.password.to_owned());
     let res = client.post(url).form(&params).send().await;
-    let res = res.map_err(|e| format!("Failed to send data to qBittorrent\n{}", e))?;
-    let headers = res.headers().clone();
-    let cookie = headers.get(SET_COOKIE).ok_or(format!(
-        "Failed to get cookie from qBittorrent:\n{}",
-        res.text().await.unwrap_or_default()
-    ))?;
-
-    let cookie = cookie
-        .to_str()
-        .map_err(|e| format!("Failed to parse cookie:\n{}", e))?;
-    cookie
-        .split(';')
-        .find(|c| c.split_once('=').is_some_and(|s| s.0 == "SID"))
-        .ok_or("No cookie returned by qBittorrent".to_owned())
-        .map(|s| s.to_owned())
+    let _ = res.map_err(|e| format!("Failed to send data to qBittorrent\n{}", e))?;
+    Ok(())
 }
 
-async fn logout(qbit: &QbitConfig, sid: String, client: &reqwest::Client) {
+async fn logout(qbit: &QbitConfig, client: &reqwest::Client) {
     let base_url = add_protocol(qbit.base_url.clone(), false);
     let _ = client
         .get(format!("{}/api/v2/auth/logout", base_url))
         .header(REFERER, base_url)
-        .header(COOKIE, sid)
         .send()
         .await;
 }
 
 async fn add_torrent(
     qbit: &QbitConfig,
-    sid: String,
     links: String,
     client: &reqwest::Client,
 ) -> Result<Response, reqwest::Error> {
@@ -160,7 +142,6 @@ async fn add_torrent(
     client
         .post(url)
         .header(REFERER, base_url)
-        .header(COOKIE, sid)
         .form(&qbit.to_form(links))
         .send()
         .await
@@ -199,12 +180,9 @@ impl DownloadClient for QbitClient {
                 ));
             }
         }
-        let sid = match login(&qbit, &client).await {
-            Ok(s) => s,
-            Err(e) => {
-                return DownloadResult::error(DownloadError(format!("Failed to get SID:\n{}", e)))
-            }
-        };
+        if let Err(e) = login(&qbit, &client).await {
+            return DownloadResult::error(DownloadError(format!("Failed to get SID:\n{}", e)));
+        }
         let links = match qbit.use_magnet.unwrap_or(true) {
             true => items
                 .iter()
@@ -217,7 +195,7 @@ impl DownloadClient for QbitClient {
                 .collect::<Vec<String>>()
                 .join("\n"),
         };
-        let res = match add_torrent(&qbit, sid.to_owned(), links, &client).await {
+        let res = match add_torrent(&qbit, links, &client).await {
             Ok(res) => res,
             Err(e) => {
                 return DownloadResult::error(DownloadError(format!(
@@ -233,7 +211,7 @@ impl DownloadClient for QbitClient {
             )));
         }
 
-        logout(&qbit, sid.clone(), &client).await;
+        logout(&qbit, &client).await;
 
         DownloadResult::new(
             format!("Successfully sent {} torrents to qBittorrent", items.len()),
diff --git a/src/util/conv.rs b/src/util/conv.rs
index 16bb1a4..fdf0d5e 100644
--- a/src/util/conv.rs
+++ b/src/util/conv.rs
@@ -1,5 +1,4 @@
 use crossterm::event::{KeyCode, KeyModifiers, MediaKeyCode, ModifierKeyCode};
-use regex::Regex;
 
 pub fn add_protocol<S: Into<String>>(url: S, default_https: bool) -> String {
     let protocol = match default_https {
@@ -7,12 +6,12 @@ pub fn add_protocol<S: Into<String>>(url: S, default_https: bool) -> String {
         false => "http",
     };
     let url = url.into();
-    let re = Regex::new(r"^(https?|socks5)?://.+$").unwrap();
-    match re.is_match(&url) {
-        true => url,
-        // Assume http(s) if not present
-        false => format!("{}://{}", protocol, url),
+    if let Some((method, other)) = url.split_once(':') {
+        if matches!(method, "http" | "https" | "socks5") && matches!(other.get(..2), Some("//")) {
+            return url;
+        }
     }
+    format!("{}://{}", protocol, url)
 }
 
 pub fn to_bytes(size: &str) -> usize {