diff --git a/flake.nix b/flake.nix
index 79c54f8..5c9d452 100644
--- a/flake.nix
+++ b/flake.nix
@@ -58,7 +58,8 @@
               ];
               config = { };
             };
-            packages.default = pkgs.think-gtcm;
+            packages.think = pkgs.think-gtcm;
+            packages.think-be = pkgs.think-backend-gtcm;
           };
       }
     );
diff --git a/pkgs/think-backend-gtcm.nix b/pkgs/think-backend-gtcm.nix
index ffcd441..53bed53 100644
--- a/pkgs/think-backend-gtcm.nix
+++ b/pkgs/think-backend-gtcm.nix
@@ -1 +1,21 @@
-{ }
+{
+  fetchgit,
+  php,
+}:
+let
+  repoSrc = fetchgit {
+    url = "https://git.b4l.co.th/newedge/think-greaterchiangmai";
+    rev = "7c17aa78436538241c09fc7d633904d3c063011e";
+    hash = "sha256-GDx0+PmuCXC+UPtsvsocCZQiTPcnOZEzJI17sxrVv7Q=";
+  };
+  src = "${repoSrc}/think-backend.greaterchiangmai.com";
+in
+php.buildComposerProject2 (finalAttrs: {
+  pname = "think-backend-gtcm";
+  version = "1.0.0";
+
+  inherit src;
+
+  composerStrictValidation = false;
+  vendorHash = "";
+})
diff --git a/pkgs/think-gtcm.nix b/pkgs/think-gtcm.nix
index ef2403c..c036f6f 100644
--- a/pkgs/think-gtcm.nix
+++ b/pkgs/think-gtcm.nix
@@ -1,9 +1,7 @@
 {
   fetchgit,
   php,
-  breakpointHook,
 }:
-
 let
   repoSrc = fetchgit {
     url = "https://git.b4l.co.th/newedge/think-greaterchiangmai";
@@ -12,15 +10,12 @@ let
   };
   src = "${repoSrc}/think.greaterchiangmai.com";
 in
-php.buildComposerProject2 (finalAttrs: rec {
+php.buildComposerProject2 (finalAttrs: {
   pname = "think-gtcm";
   version = "1.0.0";
 
   inherit src;
 
-  nativeBuildInputs = [ breakpointHook ];
-
   composerStrictValidation = false;
   vendorHash = "sha256-QV3hR3U3GwCqrCRxfkazmJwDpO1vFyMfA6YqUb4bjMI=";
-
 })