diff --git a/.gitignore b/.gitignore
index 0b51e96..8c400dc 100644
--- a/.gitignore
+++ b/.gitignore
@@ -481,3 +481,6 @@ Makefile
 
 deploy/
 config.json
+
+# build
+build/
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6334e31..d8567b5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -3,6 +3,10 @@ project(GimuServer)
 
 set(CMAKE_CXX_STANDARD 17)
 
+if (NOT DEFINED GIMUSRV_FRONTEND)
+    set(GIMUSRV_FRONTEND "STANDALONE")
+endif()
+
 if ("${GIMUSRV_FRONTEND}" STREQUAL "STANDALONE")
     set(STANDALONE TRUE)
 elseif ("${GIMUSRV_FRONTEND}" STREQUAL "PROXYAPPX")
diff --git a/gimuserver/core/Utils.cpp b/gimuserver/core/Utils.cpp
index 30b411f..6355e19 100644
--- a/gimuserver/core/Utils.cpp
+++ b/gimuserver/core/Utils.cpp
@@ -63,6 +63,15 @@ std::string Utils::RandomAccountID()
 	return r;
 }
 
+void GetLocalTime(struct tm& timeinfo, time_t& rawtime)
+{
+	#ifdef _WIN32
+		localtime_s(&timeinfo, &rawtime);
+	#else
+		localtime_r(&rawtime, &timeinfo);
+	#endif
+}
+
 void Utils::AppendJsonReqToFile(const Json::Value& v, const std::string& group)
 {
 	if (!System::Instance().LogConfig().Enable)
@@ -73,7 +82,7 @@ void Utils::AppendJsonReqToFile(const Json::Value& v, const std::string& group)
 	time_t rawtime;
 	time(&rawtime);
 	struct tm timeinfo;
-	localtime_s(&timeinfo, &rawtime);
+	GetLocalTime(timeinfo, rawtime);
 	auto ct = std::ctime(&rawtime);
 
 	p += std::filesystem::path::preferred_separator;
@@ -101,7 +110,7 @@ void Utils::AppendJsonResToFile(const Json::Value& v, const std::string& group)
 	time_t rawtime;
 	time(&rawtime);
 	struct tm timeinfo;
-	localtime_s(&timeinfo, &rawtime);
+	GetLocalTime(timeinfo, rawtime);
 	auto ct = std::ctime(&rawtime);
 
 	p += std::filesystem::path::preferred_separator;
diff --git a/gimuserver/db/MigrationManager_Register.cpp b/gimuserver/db/MigrationManager_Register.cpp
index 17e57c3..4131da1 100644
--- a/gimuserver/db/MigrationManager_Register.cpp
+++ b/gimuserver/db/MigrationManager_Register.cpp
@@ -1,7 +1,7 @@
 #include "MigrationManager.hpp"
 #include "migrations/CreateDefaultTables.hpp"
 
-#define ADD(x) m_migs.push_back(std::make_shared<Migrations::##x>());
+#define ADD(x) m_migs.push_back(std::make_shared<Migrations::x>());
 
 void MigrationManager::Register()
 {
diff --git a/gimuserver/gme/GmeController_Handlers.cpp b/gimuserver/gme/GmeController_Handlers.cpp
index b9acaef..2d1ee4d 100644
--- a/gimuserver/gme/GmeController_Handlers.cpp
+++ b/gimuserver/gme/GmeController_Handlers.cpp
@@ -10,7 +10,7 @@
 #include "handlers/DeckEditHandler.hpp"
 #include "handlers/MissionStartHandler.hpp"
 
-#define REGISTER(name) InitializeHandler(std::make_shared<Handler::##name##Handler>())
+#define REGISTER(name) InitializeHandler(std::make_shared<Handler::name##Handler>())
 
 void GmeController::InitializeHandlers()
 {
diff --git a/gimuserver/gme/handlers/InitializeHandler.cpp b/gimuserver/gme/handlers/InitializeHandler.cpp
index 6db0dd9..97d1060 100644
--- a/gimuserver/gme/handlers/InitializeHandler.cpp
+++ b/gimuserver/gme/handlers/InitializeHandler.cpp
@@ -36,7 +36,7 @@ void Handler::InitializeHandler::OnUserInfoSuccess(const drogon::orm::Result& re
 	if (result.size() > 0)
 	{
 		int col = 0;
-		auto& sql = result[0];
+		const auto& sql = result[0];
 		user.info.accountID = sql[col++].as<std::string>();
 		user.info.handleName = sql[col++].as<std::string>();
 		user.info.debugMode = sql[col++].as<bool>() ? 1 : 0;
diff --git a/gimuserver/gme/handlers/UserInfoHandler.cpp b/gimuserver/gme/handlers/UserInfoHandler.cpp
index 0281679..4f77f3a 100644
--- a/gimuserver/gme/handlers/UserInfoHandler.cpp
+++ b/gimuserver/gme/handlers/UserInfoHandler.cpp
@@ -36,7 +36,7 @@ void Handler::UserInfoHandler::Handle(UserInfo& user, DrogonCallback cb, const J
 			if (result.size() > 0)
 			{
 				int col = 0;
-				auto& sql = result[0];
+				const auto& sql = result[0];
 				user.teamInfo.UserID = user.info.userID;
 				user.teamInfo.Level = sql[col++].as<uint32_t>();
 				user.teamInfo.Exp = sql[col++].as<int64_t>();