diff --git a/gameserver/src/lib.rs b/gameserver/src/lib.rs
new file mode 100644
index 0000000..bd52bd3
--- /dev/null
+++ b/gameserver/src/lib.rs
@@ -0,0 +1,12 @@
+#![feature(let_chains)]
+use anyhow::Result;
+
+mod net;
+mod util;
+
+use net::gateway::Gateway;
+
+pub async fn start_gameserver() -> Result<()> {
+    let mut gateway = Gateway::new("0.0.0.0", 23301).await?;
+    Box::pin(gateway.listen()).await
+}
diff --git a/gameserver/src/logging.rs b/gameserver/src/logging.rs
deleted file mode 100644
index 1bfb6cc..0000000
--- a/gameserver/src/logging.rs
+++ /dev/null
@@ -1,29 +0,0 @@
-#[macro_export]
-macro_rules! log_error {
-    ($e:expr) => {
-        if let Err(e) = $e {
-            tracing::error!(error.message = %format!("{}", &e), "{:?}", e);
-        }
-    };
-    ($context:expr, $e:expr $(,)?) => {
-        if let Err(e) = $e {
-            let e = format!("{:?}", ::anyhow::anyhow!(e).context($context));
-            tracing::error!(error.message = %format!("{}", &e), "{:?}", e);
-        }
-    };
-    ($ok_context:expr, $err_context:expr, $e:expr $(,)?) => {
-        if let Err(e) = $e {
-            let e = format!("{:?}", ::anyhow::anyhow!(e).context($err_context));
-            tracing::error!(error.message = %format!("{}", &e), "{:?}", e);
-        } else {
-            tracing::info!($ok_context);
-        }
-    };
-}
-
-pub fn init_tracing() {
-    #[cfg(target_os = "windows")]
-    ansi_term::enable_ansi_support().unwrap();
-
-    env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
-}
diff --git a/gameserver/src/main.rs b/gameserver/src/main.rs
index e3f4753..af2db0e 100644
--- a/gameserver/src/main.rs
+++ b/gameserver/src/main.rs
@@ -1,16 +1,14 @@
-#![feature(let_chains)]
 use anyhow::Result;
 
-mod logging;
-mod net;
-mod util;
+pub fn init_tracing() {
+    #[cfg(target_os = "windows")]
+    ansi_term::enable_ansi_support().unwrap();
 
-use logging::init_tracing;
-use net::gateway::Gateway;
+    env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
+}
 
 #[tokio::main]
 async fn main() -> Result<()> {
     init_tracing();
-    let mut gateway = Gateway::new("0.0.0.0", 23301).await?;
-    Box::pin(gateway.listen()).await
+    gameserver::start_gameserver().await
 }
diff --git a/sdkserver/src/lib.rs b/sdkserver/src/lib.rs
new file mode 100644
index 0000000..1fe687a
--- /dev/null
+++ b/sdkserver/src/lib.rs
@@ -0,0 +1,60 @@
+use anyhow::Result;
+use axum::Router;
+use axum::http::Method;
+use axum::http::header::CONTENT_TYPE;
+use axum::routing::{get, post};
+use services::{auth, dispatch, errors, sr_tools};
+use tower_http::cors::{Any, CorsLayer};
+use tracing::Level;
+
+mod config;
+mod services;
+
+const PORT: u16 = 21000;
+
+pub async fn start_sdkserver() -> Result<()> {
+    let span = tracing::span!(Level::DEBUG, "main");
+    let _ = span.enter();
+
+    let router = Router::new()
+        .route(
+            dispatch::QUERY_DISPATCH_ENDPOINT,
+            get(dispatch::query_dispatch),
+        )
+        .route(
+            dispatch::QUERY_GATEWAY_ENDPOINT,
+            get(dispatch::query_gateway),
+        )
+        .route(auth::RISKY_API_CHECK_ENDPOINT, post(auth::risky_api_check))
+        .route(
+            auth::LOGIN_WITH_PASSWORD_ENDPOINT,
+            post(auth::login_with_password),
+        )
+        .route(
+            auth::LOGIN_WITH_SESSION_TOKEN_ENDPOINT,
+            post(auth::login_with_session_token),
+        )
+        .route(
+            auth::GRANTER_LOGIN_VERIFICATION_ENDPOINT,
+            post(auth::granter_login_verification),
+        )
+        .route(
+            sr_tools::SRTOOLS_UPLOAD_ENDPOINT,
+            post(sr_tools::sr_tool_save),
+        )
+        .layer(
+            CorsLayer::new()
+                .allow_origin(Any)
+                .allow_methods([Method::GET, Method::POST, Method::PATCH, Method::DELETE])
+                .allow_headers([CONTENT_TYPE]),
+        )
+        .fallback(errors::not_found);
+
+    let addr = format!("0.0.0.0:{PORT}");
+    let server = axum_server::bind(addr.parse()?);
+
+    tracing::info!("sdkserver is listening at {addr}");
+    server.serve(router.into_make_service()).await?;
+
+    Ok(())
+}
diff --git a/sdkserver/src/logging.rs b/sdkserver/src/logging.rs
deleted file mode 100644
index 1bfb6cc..0000000
--- a/sdkserver/src/logging.rs
+++ /dev/null
@@ -1,29 +0,0 @@
-#[macro_export]
-macro_rules! log_error {
-    ($e:expr) => {
-        if let Err(e) = $e {
-            tracing::error!(error.message = %format!("{}", &e), "{:?}", e);
-        }
-    };
-    ($context:expr, $e:expr $(,)?) => {
-        if let Err(e) = $e {
-            let e = format!("{:?}", ::anyhow::anyhow!(e).context($context));
-            tracing::error!(error.message = %format!("{}", &e), "{:?}", e);
-        }
-    };
-    ($ok_context:expr, $err_context:expr, $e:expr $(,)?) => {
-        if let Err(e) = $e {
-            let e = format!("{:?}", ::anyhow::anyhow!(e).context($err_context));
-            tracing::error!(error.message = %format!("{}", &e), "{:?}", e);
-        } else {
-            tracing::info!($ok_context);
-        }
-    };
-}
-
-pub fn init_tracing() {
-    #[cfg(target_os = "windows")]
-    ansi_term::enable_ansi_support().unwrap();
-
-    env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
-}
diff --git a/sdkserver/src/main.rs b/sdkserver/src/main.rs
index 4c064f3..9547f53 100644
--- a/sdkserver/src/main.rs
+++ b/sdkserver/src/main.rs
@@ -1,65 +1,14 @@
 use anyhow::Result;
-use axum::Router;
-use axum::http::Method;
-use axum::http::header::CONTENT_TYPE;
-use axum::routing::{get, post};
-use logging::init_tracing;
-use services::{auth, dispatch, errors, sr_tools};
-use tower_http::cors::{Any, CorsLayer};
-use tracing::Level;
 
-mod config;
-mod logging;
-mod services;
+pub fn init_tracing() {
+    #[cfg(target_os = "windows")]
+    ansi_term::enable_ansi_support().unwrap();
 
-const PORT: u16 = 21000;
+    env_logger::init_from_env(env_logger::Env::new().default_filter_or("info"));
+}
 
 #[tokio::main]
 async fn main() -> Result<()> {
     init_tracing();
-
-    let span = tracing::span!(Level::DEBUG, "main");
-    let _ = span.enter();
-
-    let router = Router::new()
-        .route(
-            dispatch::QUERY_DISPATCH_ENDPOINT,
-            get(dispatch::query_dispatch),
-        )
-        .route(
-            dispatch::QUERY_GATEWAY_ENDPOINT,
-            get(dispatch::query_gateway),
-        )
-        .route(auth::RISKY_API_CHECK_ENDPOINT, post(auth::risky_api_check))
-        .route(
-            auth::LOGIN_WITH_PASSWORD_ENDPOINT,
-            post(auth::login_with_password),
-        )
-        .route(
-            auth::LOGIN_WITH_SESSION_TOKEN_ENDPOINT,
-            post(auth::login_with_session_token),
-        )
-        .route(
-            auth::GRANTER_LOGIN_VERIFICATION_ENDPOINT,
-            post(auth::granter_login_verification),
-        )
-        .route(
-            sr_tools::SRTOOLS_UPLOAD_ENDPOINT,
-            post(sr_tools::sr_tool_save),
-        )
-        .layer(
-            CorsLayer::new()
-                .allow_origin(Any)
-                .allow_methods([Method::GET, Method::POST, Method::PATCH, Method::DELETE])
-                .allow_headers([CONTENT_TYPE]),
-        )
-        .fallback(errors::not_found);
-
-    let addr = format!("0.0.0.0:{PORT}");
-    let server = axum_server::bind(addr.parse()?);
-
-    tracing::info!("sdkserver is listening at {addr}");
-    server.serve(router.into_make_service()).await?;
-
-    Ok(())
+    sdkserver::start_sdkserver().await
 }