diff --git a/src/MeoAssistant/Utils/AsstUtils.hpp b/src/MeoAssistant/Utils/AsstUtils.hpp
index 321174f07b..2b41691c79 100644
--- a/src/MeoAssistant/Utils/AsstUtils.hpp
+++ b/src/MeoAssistant/Utils/AsstUtils.hpp
@@ -8,22 +8,20 @@
 #include <sstream>
 #include <string>
 
+#include "Platform/AsstPlatform.h"
+
 #ifdef _WIN32
 #include "Platform/SafeWindows.h"
 #else
 #include <ctime>
 #include <fcntl.h>
-#include <memory.h>
 #include <sys/time.h>
-#include <sys/wait.h>
-#include <unistd.h>
 #endif
 
 #include "Meta.hpp"
 
 namespace asst::utils
 {
-    using os_string = std::filesystem::path::string_type;
     template <typename char_t = char>
     using pair_of_string_view = std::pair<std::basic_string_view<char_t>, std::basic_string_view<char_t>>;
 
@@ -292,74 +290,20 @@ namespace asst::utils
         return buff;
     }
 
+    using os_string = platform::os_string;
+
 #ifdef _WIN32
     static_assert(std::same_as<os_string, std::wstring>);
-    os_string to_osstring(const std::string& utf8_str);
-    std::string from_osstring(const os_string& os_str);
 #else
     static_assert(std::same_as<os_string, std::string>);
-    inline os_string to_osstring(const std::string& utf8_str)
-    {
-        return utf8_str;
-    }
-    inline std::string from_osstring(const os_string& os_str)
-    {
-        return os_str;
-    }
 #endif
 
-    inline std::filesystem::path path(const os_string& os_str)
-    {
-        return std::filesystem::path(os_str);
-    }
-
-#ifdef _WIN32
-    // Allow construct a path from utf8-string in win32
-    inline std::filesystem::path path(const std::string& utf8_str)
-    {
-        return std::filesystem::path(to_osstring(utf8_str));
-    }
-#endif
-
-#ifdef _WIN32
-
-    std::string path_to_crt_string(const std::filesystem::path& path);
-
-    std::string path_to_ansi_string(const std::filesystem::path& path);
-
-    inline std::string path_to_utf8_string(const std::filesystem::path& path)
-    {
-        return from_osstring(path.native());
-    }
-
-    inline std::string path_to_crt_string(const std::string& utf8_path)
-    {
-        return path_to_crt_string(path(utf8_path));
-    }
-
-    inline std::string path_to_ansi_string(const std::string& utf8_path)
-    {
-        return path_to_crt_string(path(utf8_path));
-    }
-
-#else
-
-    inline std::string path_to_utf8_string(const std::filesystem::path& path)
-    {
-        return path.native();
-    }
-
-    inline std::string path_to_ansi_string(const std::filesystem::path& path)
-    {
-        return path.native();
-    }
-
-    inline std::string path_to_crt_string(const std::filesystem::path& path)
-    {
-        return path.native();
-    }
-
-#endif
+    using platform::from_osstring;
+    using platform::path;
+    using platform::path_to_ansi_string;
+    using platform::path_to_crt_string;
+    using platform::path_to_utf8_string;
+    using platform::to_osstring;
 
     template <typename _ = void>
     inline std::string ansi_to_utf8(std::string_view ansi_str)
@@ -487,7 +431,7 @@ namespace asst::utils
         return str;
     }
 
-    std::string callcmd(const std::string& cmdline);
+    using platform::callcmd;
 
     namespace path_literals
     {
diff --git a/src/MeoAssistant/Utils/Platform/AsstPlatform.h b/src/MeoAssistant/Utils/Platform/AsstPlatform.h
index b1bec29c20..c3695d8d62 100644
--- a/src/MeoAssistant/Utils/Platform/AsstPlatform.h
+++ b/src/MeoAssistant/Utils/Platform/AsstPlatform.h
@@ -1,12 +1,81 @@
 #pragma once
 
 #include <cstddef>
+#include <filesystem>
 #include <new>
+#include <string>
 #include <type_traits>
 #include <utility>
 
 namespace asst::platform
 {
+    std::string callcmd(const std::string&);
+
+    using os_string = std::filesystem::path::string_type;
+
+    inline std::filesystem::path path(const os_string& os_str)
+    {
+        return std::filesystem::path(os_str);
+    }
+
+#ifdef _WIN32
+    std::string path_to_crt_string(const std::filesystem::path&);
+    std::string path_to_ansi_string(const std::filesystem::path&);
+    os_string to_osstring(const std::string& utf8_str);
+    std::string from_osstring(const os_string&);
+
+    // Allow construct a path from utf8-string in win32
+    inline std::filesystem::path path(const std::string& utf8_str)
+    {
+        return std::filesystem::path(to_osstring(utf8_str));
+    }
+
+    inline std::string path_to_utf8_string(const std::filesystem::path& path)
+    {
+        return from_osstring(path.native());
+    }
+
+    inline std::string path_to_crt_string(const std::string& utf8_path)
+    {
+        return path_to_crt_string(path(utf8_path));
+    }
+
+    inline std::string path_to_ansi_string(const std::string& utf8_path)
+    {
+        return path_to_crt_string(path(utf8_path));
+    }
+
+#else
+
+    inline os_string to_osstring(const std::string& utf8_str)
+    {
+        return utf8_str;
+    }
+
+    inline std::string from_osstring(const os_string& os_str)
+    {
+        return os_str;
+    }
+
+    inline std::string path_to_utf8_string(const std::filesystem::path& path)
+    {
+        return path.native();
+    }
+
+    inline std::string path_to_ansi_string(const std::filesystem::path& path)
+    {
+        return path.native();
+    }
+
+    inline std::string path_to_crt_string(const std::filesystem::path& path)
+    {
+        return path.native();
+    }
+
+#endif
+
+    // --------- detail ------------
+
     extern const size_t page_size;
 
     void* aligned_alloc(size_t len, size_t align);
@@ -50,4 +119,4 @@ namespace asst::platform
         inline TElem* get() const { return _ptr; }
         inline size_t size() const { return _ptr ? (page_size / sizeof(TElem)) : 0; }
     };
-}
+} // namespace asst::platform
diff --git a/src/MeoAssistant/Utils/Platform/AsstPlatformPosix.cpp b/src/MeoAssistant/Utils/Platform/AsstPlatformPosix.cpp
index 06e331129e..cdfd1c2da2 100644
--- a/src/MeoAssistant/Utils/Platform/AsstPlatformPosix.cpp
+++ b/src/MeoAssistant/Utils/Platform/AsstPlatformPosix.cpp
@@ -1,9 +1,11 @@
 #if __has_include(<unistd.h>)
 #include "AsstPlatformPosix.h"
 #include "AsstPlatform.h"
-#include "Utils/AsstUtils.hpp"
 
 #include <cstdlib>
+#include <fcntl.h>
+#include <sys/wait.h>
+#include <unistd.h>
 
 static size_t get_page_size()
 {
@@ -22,7 +24,7 @@ void asst::platform::aligned_free(void* ptr)
     free(ptr);
 }
 
-std::string asst::utils::callcmd(const std::string& cmdline)
+std::string asst::platform::callcmd(const std::string& cmdline)
 {
     constexpr int PipeBuffSize = 4096;
     std::string pipe_str;
diff --git a/src/MeoAssistant/Utils/Platform/AsstPlatformWin32.cpp b/src/MeoAssistant/Utils/Platform/AsstPlatformWin32.cpp
index f287cba480..d52e145ec7 100644
--- a/src/MeoAssistant/Utils/Platform/AsstPlatformWin32.cpp
+++ b/src/MeoAssistant/Utils/Platform/AsstPlatformWin32.cpp
@@ -67,7 +67,7 @@ static std::string get_ansi_short_path(const std::filesystem::path& path)
     return result;
 }
 
-std::string asst::utils::path_to_crt_string(const std::filesystem::path& path)
+std::string asst::platform::path_to_crt_string(const std::filesystem::path& path)
 {
     // UCRT may use UTF-8 encoding while ANSI code page is still some other MBCS encoding
     // so we use CRT wcstombs instead of WideCharToMultiByte
@@ -86,7 +86,7 @@ std::string asst::utils::path_to_crt_string(const std::filesystem::path& path)
     }
 }
 
-std::string asst::utils::path_to_ansi_string(const std::filesystem::path& path)
+std::string asst::platform::path_to_ansi_string(const std::filesystem::path& path)
 {
     // UCRT may use UTF-8 encoding while ANSI code page is still some other MBCS encoding
     // so we use CRT wcstombs instead of WideCharToMultiByte
@@ -104,15 +104,15 @@ std::string asst::utils::path_to_ansi_string(const std::filesystem::path& path)
     }
 }
 
-asst::utils::os_string asst::utils::to_osstring(const std::string& utf8_str)
+asst::platform::os_string asst::platform::to_osstring(const std::string& utf8_str)
 {
     int len = MultiByteToWideChar(CP_UTF8, 0, utf8_str.c_str(), (int)utf8_str.size(), nullptr, 0);
-    asst::utils::os_string result(len, 0);
+    os_string result(len, 0);
     MultiByteToWideChar(CP_UTF8, 0, utf8_str.c_str(), (int)utf8_str.size(), &result[0], len);
     return result;
 }
 
-std::string asst::utils::from_osstring(const asst::utils::os_string& os_str)
+std::string asst::platform::from_osstring(const os_string& os_str)
 {
     int len = WideCharToMultiByte(CP_UTF8, 0, os_str.c_str(), (int)os_str.size(), nullptr, 0, nullptr, nullptr);
     std::string result(len, 0);
@@ -120,7 +120,7 @@ std::string asst::utils::from_osstring(const asst::utils::os_string& os_str)
     return result;
 }
 
-std::string asst::utils::callcmd(const std::string& cmdline)
+std::string asst::platform::callcmd(const std::string& cmdline)
 {
     constexpr int PipeBuffSize = 4096;
     auto pipe_buffer = std::make_unique<char[]>(PipeBuffSize);
@@ -146,7 +146,7 @@ std::string asst::utils::callcmd(const std::string& cmdline)
     PROCESS_INFORMATION process_info = { nullptr };
     ASST_AUTO_DEDUCED_ZERO_INIT_END
 
-    auto cmdline_osstr = asst::utils::to_osstring(cmdline);
+    auto cmdline_osstr = to_osstring(cmdline);
     BOOL create_ret =
         CreateProcessW(nullptr, &cmdline_osstr[0], nullptr, nullptr, TRUE, 0, nullptr, nullptr, &si, &process_info);
     if (!create_ret) {
@@ -282,7 +282,7 @@ HANDLE asst::win32::OpenDirectory(const std::filesystem::path& path, BOOL bReadW
 
 bool asst::win32::SetDirectoryReparsePoint(const std::filesystem::path& link, const std::filesystem::path& target)
 {
-    auto normtarget = asst::utils::path(asst::utils::string_replace_all(target.native(), L"/", L"\\"));
+    auto normtarget = asst::platform::path(asst::utils::string_replace_all(target.native(), L"/", L"\\"));
 
     auto nttarget = L"\\GLOBAL??\\" + std::filesystem::absolute(normtarget).native();
     if (nttarget.back() != L'\\') nttarget.push_back(L'\\');