diff --git a/main.hpp b/main.hpp
new file mode 100644
index 0000000..cfb80c6
--- /dev/null
+++ b/main.hpp
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <tuple>
+
+#include <command_table.hpp>
+#include <sessions_manager.hpp>
+
+extern std::tuple<session::Manager&, command::Table&> singletonPool;
+
+// Select call timeout is set arbitarily set to 30 sec
+static constexpr size_t SELECT_CALL_TIMEOUT = 30;
+static const auto IPMI_STD_PORT = 623;