{
  inputs = {
    nixpkgs.url = "github:kidrigger/nixpkgs/imgui-docking";
    flake-utils.url = "github:numtide/flake-utils";
  };
  outputs = {self, nixpkgs, flake-utils }:
    flake-utils.lib.eachDefaultSystem (system:
      let
        pkgs = import nixpkgs {
          inherit system;
        };
        eabase = pkgs.callPackage ./vendored-nix/eabase {};
        eastl = pkgs.callPackage ./vendored-nix/eastl { inherit eabase; };
        tinygltf = pkgs.callPackage ./vendored-nix/tinygltf {};
        debugbreak = pkgs.callPackage ./vendored-nix/scottt-debugbreak {};
      in
      with pkgs;
      {
        devShells.default = clangStdenv.mkDerivation {
          name = "Aster-Env";

          
        nativeBuildInputs = [
          cmake
          ninja
          ccls
          clang-tools
          lldb
          (imgui.override {IMGUI_BUILD_VULKAN_BINDING = true; IMGUI_BUILD_GLFW_BINDING=true; IMGUI_EXPERIMENTAL_DOCKING = true; })
        ];

        buildInputs = [    
          glm
          glfw3
          eastl
          fmt
          eabase
          eastl
          entt
          tinygltf
          debugbreak
          stb

          # vulkan
          vulkan-headers
          vulkan-loader
          vulkan-validation-layers
          vulkan-memory-allocator
          directx-shader-compiler
          glslang
          shaderc
          shader-slang
        ];
        };
      }
    );
}