diff --git a/src/bin/overtls.rs b/src/bin/overtls.rs
index 571ec75..6a733e3 100644
--- a/src/bin/overtls.rs
+++ b/src/bin/overtls.rs
@@ -1,4 +1,4 @@
-use overtls::{client, config, server, CmdOpt, Error, Result};
+use overtls::{run_client, run_server, CmdOpt, Config, Error, Result};
 
 fn main() -> Result<()> {
     let opt = CmdOpt::parse_cmd();
@@ -41,7 +41,7 @@ fn main() -> Result<()> {
 
     let is_server = opt.is_server();
 
-    let mut config = config::Config::from_config_file(&opt.config)?;
+    let mut config = Config::from_config_file(&opt.config)?;
     config.set_cache_dns(opt.cache_dns);
 
     if opt.qrcode {
@@ -69,14 +69,14 @@ fn main() -> Result<()> {
     rt.block_on(async_main(config))
 }
 
-async fn async_main(config: config::Config) -> Result<()> {
+async fn async_main(config: Config) -> Result<()> {
     let shutdown_token = overtls::CancellationToken::new();
     let shutdown_token_clone = shutdown_token.clone();
 
     let main_body = async {
         if config.is_server {
             if config.exist_server() {
-                server::run_server(&config, shutdown_token_clone).await?;
+                run_server(&config, shutdown_token_clone).await?;
             } else {
                 return Err(Error::from("Config is not a server config"));
             }
@@ -84,7 +84,7 @@ async fn async_main(config: config::Config) -> Result<()> {
             let callback = |addr| {
                 log::trace!("Listening on {}", addr);
             };
-            client::run_client(&config, shutdown_token_clone, Some(callback)).await?;
+            run_client(&config, shutdown_token_clone, Some(callback)).await?;
         } else {
             return Err("Config is not a client config".into());
         }
diff --git a/src/lib.rs b/src/lib.rs
index 4556052..4eb9b33 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -1,13 +1,13 @@
 pub(crate) mod android;
 pub(crate) mod api;
 pub(crate) mod base64_wrapper;
-pub mod client;
+pub(crate) mod client;
 pub(crate) mod cmdopt;
-pub mod config;
+pub(crate) mod config;
 pub(crate) mod dns;
-pub mod dump_logger;
-pub mod error;
-pub mod server;
+pub(crate) mod dump_logger;
+pub(crate) mod error;
+pub(crate) mod server;
 pub(crate) mod tcp_stream;
 pub(crate) mod tls;
 pub(crate) mod traffic_audit;
@@ -18,9 +18,12 @@ pub(crate) mod weirduri;
 pub use api::{over_tls_client_run, over_tls_client_run_with_ssr_url, over_tls_client_stop};
 use base64_wrapper::{base64_decode, base64_encode, Base64Engine};
 use bytes::BytesMut;
+pub use client::run_client;
 pub use cmdopt::{ArgVerbosity, CmdOpt, Role};
+pub use config::Config;
 pub use dump_logger::overtls_set_log_callback;
 pub use error::{BoxError, Error, Result};
+pub use server::run_server;
 use socks5_impl::protocol::{Address, StreamOperation};
 pub use tokio_util::sync::CancellationToken;