diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 0000000..162984c
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,19 @@
+# Maintainer: Shiwei Zhang <ylxdzsw@gmail.com>
+
+pkgname=v2socks
+pkgdesc="An opinioned lightweight socks5 server and vmess (v2ray) client."
+pkgrel=1
+pkgver=0.1.0
+arch=(any)
+url='https://github.com/ylxdzsw/v2socks'
+license=(GPL3)
+makedepends=(cargo)
+source=("https://github.com/ylxdzsw/v2socks/archive/v$pkgver.tar.gz")
+md5sums=(SKIP)
+
+package() {
+    cd "$srcdir/v2socks"
+    cargo build --release
+    install -D "$srcdir"/v2socks-$pkgver/target/release/v2socks "$pkgdir"/usr/bin/v2socks
+    install -Dm644 "$srcdir"/v2socks-$pkgver/v2socks.service "$pkgdir"/usr/lib/systemd/system/v2socks.service
+}
\ No newline at end of file
diff --git a/readme.md b/readme.md
new file mode 100644
index 0000000..214519c
--- /dev/null
+++ b/readme.md
@@ -0,0 +1,4 @@
+V2socks
+=======
+
+An opinioned lightweight socks5 server and vmess (v2ray) client.
\ No newline at end of file
diff --git a/src/main.rs b/src/main.rs
index 11d5ef6..b12c82d 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -71,7 +71,7 @@ fn vmess(server: &Socks5Server, proxy: String, user_id: [u8; 16]) {
             let mut stream = stream.try_clone().unwrap();
             
             std::thread::spawn(move || {
-                let mut reader = VmessReader::<std::net::TcpStream>::new(conn, key, IV);
+                let mut reader = VmessReader::new(conn, key, IV);
                 let mut buffer = [0; 1<<14];
                 loop {
                     let len = reader.read(&mut buffer).unwrap();
diff --git a/src/vmess.rs b/src/vmess.rs
index 465f4d4..a893e06 100644
--- a/src/vmess.rs
+++ b/src/vmess.rs
@@ -39,23 +39,6 @@ impl VmessReader<std::io::BufReader<std::net::TcpStream>> {
     }
 }
 
-impl VmessReader<std::net::TcpStream> {
-    /// key and IV are just data key and iv in the request header, this function will calculate the md5 it selfs
-    #[allow(non_snake_case)]
-    pub fn new(conn: std::net::TcpStream, key: [u8; 16], IV: [u8; 16]) -> Self {
-        let mut reader = VmessReader {
-            reader: conn,
-            decoder: AES128CFB::new(md5!(&key), md5!(&IV))
-        };
-        reader.handshake();
-        reader
-    }
-
-    pub fn into_inner(self) -> std::net::TcpStream {
-        self.reader
-    }
-}
-
 impl<R: ReadExt> VmessReader<R> {
     fn handshake(&mut self) {
         let mut head = [0; 4];
@@ -211,7 +194,7 @@ impl<W: Write> Write for VmessWriter<W> {
     }
 }
 
-fn fnv1a(x: &[u8]) -> u32 { // checked
+fn fnv1a(x: &[u8]) -> u32 {
     let prime = 16777619;
     let mut hash = 0x811c9dc5;
     for byte in x.iter() {
diff --git a/v2socks.service b/v2socks.service
new file mode 100644
index 0000000..f483ab9
--- /dev/null
+++ b/v2socks.service
@@ -0,0 +1,6 @@
+[Unit]
+Description=v2socks
+
+[Service]
+Type=simple
+ExecStart=/usr/bin/v2socks plain
\ No newline at end of file