diff --git a/build.cpp b/build.cpp
index a70384d..833b101 100644
--- a/build.cpp
+++ b/build.cpp
@@ -1,40 +1,22 @@
+
+#ifdef _WIN32
+#define EXT_LINK
+#endif
+
+#define EXT_INC
 #include "build.hpp"
 #include <unordered_set>
 
-std::filesystem::path OBJ_DIR = "obj";
-std::filesystem::path INC_DIR = "inc";
-std::filesystem::path SRC_DIR = "src";
+#ifdef _WIN32
+std::vector<std::string> LINK = {"-lopengl32", "-lkernel32", "-luser32", "-lshell32","-lwinmm","-lgdi32"};
+#endif
+std::vector<std::string> RAYINCLUDE = {"-Iraylib/src", "-Iraylib/src/external/glfw/include", "-Iraylib/src/external/glfw/deps/mingw"};
 std::filesystem::path RAYLIB_DIR = "raylib";
-std::filesystem::path BUILD_FILE = "treender";
 
 bool build = false;
 bool clear = false;
 bool run = false;
 
-std::string cpp_compiler = "g++";
-std::string c_compiler = "gcc";
-std::string opt_flags = "-ggdb";
-std::vector<std::string> command;
-std::vector<std::string> RAYINCLUDE = {"-Iraylib/src", "-Iraylib/src/external/glfw/include", "-Iraylib/src/external/glfw/deps/mingw"};
-
-void clear_build_dir(bool src, bool raylib)
-{
-  if (src)
-  {
-    std::filesystem::remove_all(OBJ_DIR / SRC_DIR);
-  }
-  if (raylib)
-  {
-    std::filesystem::remove_all(OBJ_DIR / RAYLIB_DIR);
-  }
-  if (src && raylib)
-  {
-    if (std::filesystem::exists(OBJ_DIR))
-      std::filesystem::remove_all(OBJ_DIR);
-  }
-  std::filesystem::remove(BUILD_FILE);
-}
-
 void compile_raylib_dir()
 {
   std::filesystem::path out_dir = OBJ_DIR / RAYLIB_DIR;
@@ -64,104 +46,13 @@ void compile_raylib_dir()
     out = out_dir / ray_srcs[i].replace_extension(".o");
     if (check_if_rebuild(src, out))
     {
-      command[src_loc] = src;
-      command[obj_loc] = out;
+      command[src_loc] = src.string();
+      command[obj_loc] = out.string();
       nob_cmd_run_sync(command);
     }
   }
 }
 
-int compile_src_dir()
-{
-  nob_directory src_dir = get_all_files_in_dir(SRC_DIR);
-  nob_directory obj_dir;
-
-  for (auto &&i : src_dir.dirs)
-  {
-    std::filesystem::create_directory(OBJ_DIR / i);
-  }
-
-  std::unordered_set<std::string> modified_heders;
-
-  nob_directory inc_dir = get_all_files_in_dir(INC_DIR);
-  for (size_t i = 0; i < inc_dir.files.size(); i++)
-  {
-    if (check_if_rebuild(inc_dir.files[i], BUILD_FILE))
-    {
-      std::string heder = inc_dir.files[i].string().substr(4);
-      modified_heders.insert(heder);
-    }
-  }
-
-  command.clear();
-  command.push_back(cpp_compiler);
-  command.push_back("-c");
-  int src_loc = command.size();
-  command.push_back("");
-  command.push_back("-o");
-  int obj_loc = command.size();
-  command.push_back("");
-  command.push_back(opt_flags);
-  command.insert(command.end(), RAYINCLUDE.begin(), RAYINCLUDE.end());
-  command.push_back("-Iinc");
-
-  command.push_back("-std=c++23");
-  command.push_back("-Wall");
-  command.push_back("-Werror");
-
-  int build = 0;
-  for (auto &&i : src_dir.files)
-  {
-    std::filesystem::path tmp = i;
-    std::filesystem::path out = OBJ_DIR / tmp.replace_extension(".o");
-    bool reb = false;
-    if (check_if_rebuild(i, out))
-      reb = true;
-
-    if (!reb)
-    {
-      std::vector<std::string> incudes = get_includes(i);
-      for (auto &&j : incudes)
-      {
-        if (modified_heders.find(j) != modified_heders.end())
-        {
-          reb = true;
-          break;
-        }
-      }
-    }
-
-    if (reb)
-    {
-      command[src_loc] = i;
-      command[obj_loc] = out;
-      if (!nob_cmd_run_sync(command))
-        return -1;
-
-      build = 1;
-    }
-  }
-  return build;
-}
-
-void compile_obj_dir()
-{
-  nob_directory obj_dir = get_all_files_in_dir(OBJ_DIR);
-
-  command.clear();
-  command.push_back(cpp_compiler);
-
-  for (auto &&i : obj_dir.files)
-  {
-    command.push_back(i);
-  }
-
-  command.push_back("-o");
-  command.push_back(BUILD_FILE);
-
-  nob_cmd_run_sync(command);
-}
-
 int main(int argc, char const *argv[])
 {
   if (rebuild_my_self(__FILE__, argc, argv))
@@ -180,7 +71,7 @@ int main(int argc, char const *argv[])
 
     if (!std::strcmp(argv[i], "clear"))
     {
-      clear_build_dir(true, true);
+      clear_all_build();
       clear = true;
     }
   }
@@ -204,18 +95,18 @@ int main(int argc, char const *argv[])
 
   compile_raylib_dir();
 
-  int res = compile_src_dir();
+  int res = compile_src_dir(RAYINCLUDE);
   switch (res)
   {
   case 1:
-    compile_obj_dir();
+    compile_obj_dir(LINK);
     break;
   case -1:
     return 0;
   }
 
   if (!std::filesystem::exists(BUILD_FILE))
-    compile_obj_dir();
+    compile_obj_dir(LINK);
 
   if (run)
   {
diff --git a/build.hpp b/build.hpp
index a8605b4..39859ac 100644
--- a/build.hpp
+++ b/build.hpp
@@ -1,11 +1,33 @@
 #include <cstdio>
 #include <cstring>
-#include <thread>
 #include <vector>
 #include <string>
 #include <list>
 #include <filesystem>
 #include <fstream>
+#include <unordered_set>
+
+// #define EXT_LINK
+// #define EXT_INC
+// #define EXT_OBJ
+// #define NO_Werror
+
+std::filesystem::path OBJ_DIR = "obj";
+std::filesystem::path INC_DIR = "inc";
+std::filesystem::path SRC_DIR = "src";
+
+#ifdef _WIN32
+std::filesystem::path BUILD_FILE = "main.exe";
+std::string cpp_compiler = "zig c++";
+std::string c_compiler = "zig cc";
+#else
+std::filesystem::path BUILD_FILE = "main";
+std::string cpp_compiler = "g++";
+std::string c_compiler = "gcc";
+#endif
+
+std::string opt_flags = "-ggdb";
+std::vector<std::string> command;
 
 enum class Color
 {
@@ -95,16 +117,18 @@ bool check_if_rebuild(const std::filesystem::path &org_path, const std::filesyst
 
 bool rebuild_my_self(std::filesystem::path src_path, int argc, const char **exec_path)
 {
+  std::filesystem::path exec = exec_path[0];
+
+  if (!check_if_rebuild(src_path, exec) && !check_if_rebuild(__FILE__, exec))
+    return false;
+
+#ifndef _WIN32
   std::vector<std::string> input;
 
   for (int i = 0; i < argc; ++i)
     input.push_back(exec_path[i]);
-  std::filesystem::path exec = input[0];
 
-  if (!check_if_rebuild(src_path, exec))
-    return false;
-
-  std::vector<std::string> comand = {"g++", src_path, "-o", exec_path[0], "-g"};
+  std::vector<std::string> comand = {cpp_compiler, src_path.string(), "-o", exec_path[0], "-g"};
   if (!nob_cmd_run_sync(comand))
     return false;
 
@@ -112,6 +136,11 @@ bool rebuild_my_self(std::filesystem::path src_path, int argc, const char **exec
     return false;
 
   printf("rebuild\n");
+#else
+  pick_color(Color::red);
+  printf("rebuild me\n");
+  pick_color(Color::white);
+#endif
   return true;
 }
 
@@ -164,14 +193,175 @@ std::vector<std::string> get_includes(const std::filesystem::path &path)
 
   while (std::getline(ifs, line))
   {
-    if (!line[0] == '#' && !line.empty())
+    if (line.empty())
+      continue;
+
+    if (line[0] != '#')
       break;
 
+    // if include ends with " its my .h
     if (line[line.size() - 1] == '\"')
     {
+      // magic num 10 is lenOf(#include ") so start at 10 until end of
+      // line witch is len of line - 10 - 1 of cahar "
       ret.push_back(line.substr(10, line.length() - 10 - 1));
     }
   }
 
   return ret;
 }
+
+void clear_all_build()
+{
+  std::filesystem::remove_all(OBJ_DIR);
+  std::filesystem::remove_all(BUILD_FILE);
+}
+
+#ifdef EXT_INC
+int compile_src_dir(std::vector<std::string> ext_inc)
+#else
+int compile_src_dir()
+#endif
+{
+  nob_directory src_dir = get_all_files_in_dir(SRC_DIR);
+  nob_directory obj_dir;
+
+  for (auto &&i : src_dir.dirs)
+  {
+    std::filesystem::create_directory(OBJ_DIR / i);
+  }
+
+  std::unordered_set<std::string> modified_heders;
+  nob_directory inc_dir = get_all_files_in_dir(INC_DIR);
+
+  for (size_t i = 0; i < inc_dir.files.size(); i++)
+  {
+    if (check_if_rebuild(inc_dir.files[i], BUILD_FILE))
+    {
+      std::string heder = inc_dir.files[i].string().substr(4);
+      modified_heders.insert(heder);
+    }
+  }
+
+  command.clear();
+  command.push_back(cpp_compiler);
+  command.push_back("-c");
+  int src_loc = command.size();
+  command.push_back("");
+  command.push_back("-o");
+  int obj_loc = command.size();
+  command.push_back("");
+  command.push_back(opt_flags);
+
+#ifdef EXT_INC
+  command.insert(command.end(), ext_inc.begin(), ext_inc.end());
+#endif
+
+  command.push_back("-I" + INC_DIR.string());
+  command.push_back("-std=c++23");
+  command.push_back("-Wall");
+#ifndef NO_Werror
+  command.push_back("-Werror");
+#endif
+
+  int build = 0;
+  for (auto &&i : src_dir.files)
+  {
+    std::filesystem::path tmp = i;
+    std::filesystem::path out = OBJ_DIR / tmp.replace_extension(".o");
+    bool reb = false;
+    // check if .cpp changed
+    if (check_if_rebuild(i, out))
+      reb = true;
+
+    // if .cpp didnt change check include files changed
+    if (!reb)
+    {
+      std::vector<std::string> incudes = get_includes(i);
+      for (auto &&j : incudes)
+      {
+        if (modified_heders.find(j) != modified_heders.end())
+        {
+          reb = true;
+          break;
+        }
+      }
+    }
+
+    if (reb)
+    {
+      command[src_loc] = i.string();
+      command[obj_loc] = out.string();
+      if (!nob_cmd_run_sync(command))
+        return -1;
+
+      build = 1;
+    }
+  }
+  return build;
+}
+
+#if defined(EXT_LINK)
+void compile_obj_dir(std::vector<std::string> ext_link)
+#else
+void compile_obj_dir()
+#endif
+{
+  nob_directory obj_dir = get_all_files_in_dir(OBJ_DIR);
+
+  command.clear();
+  command.push_back(cpp_compiler);
+
+  for (auto &&i : obj_dir.files)
+  {
+    command.push_back(i.string());
+  }
+
+  command.push_back("-o");
+  command.push_back(BUILD_FILE.string());
+
+#if defined(EXT_LINK)
+  command.insert(command.end(), ext_link.begin(), ext_link.end());
+#endif
+
+  nob_cmd_run_sync(command);
+}
+
+#if defined(EXT_OBJ) && defined(EXT_INC)
+void build_as_one(std::vector<std::string> ext_obj, std::vector<std::string> ext_inc)
+#elif defined(EXT_OBJ)
+void build_as_one(std::vector<std::string> ext_obj)
+#elif defined(EXT_INC)
+void build_as_one(std::vector<std::string> ext_inc)
+#else
+void build_as_one()
+#endif
+{
+  nob_directory src_dir = get_all_files_in_dir(SRC_DIR);
+
+  command.clear();
+  command.push_back(cpp_compiler);
+  command.push_back("-o");
+  command.push_back(BUILD_FILE.string());
+  command.push_back(opt_flags);
+
+#ifdef EXT_INC
+  command.insert(command.end(), ext_inc.begin(), ext_inc.end());
+#endif
+
+  command.push_back("-I" + INC_DIR.string());
+  command.push_back("-std=c++23");
+  command.push_back("-Wall");
+#ifndef NO_Werror
+  command.push_back("-Werror");
+#endif
+  for (auto &&i : src_dir.files)
+  {
+    command.push_back(i.string());
+  }
+
+#ifdef EXT_OBJ
+  command.insert(command.end(), ext_obj.begin(), ext_obj.end());
+#endif
+  nob_cmd_run_sync(command);
+}
\ No newline at end of file