diff --git a/flake.nix b/flake.nix
index 635032e..3b5ea1a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -72,12 +72,18 @@
               inherit system;
               overlays = [
                 inputs.self.overlays.packagesOverlay
+                inputs.self.overlays.frappixFrappeOverlay
+                inputs.self.overlays.frappixLibsOverlay
+                inputs.self.overlays.frappixPythonOverlay
+                inputs.self.overlays.frappixToolsOverlay
               ];
               config = { };
             };
             packages.think = pkgs.think-gtcm;
             packages.think-be = pkgs.think-backend-gtcm;
             packages.file-uploader = pkgs.gtcm-file-uploader;
+            packages.erpnext_thailand = pkgs.erpnext_thailand;
+            packages.thai_payroll = pkgs.thai_payroll;
           };
       }
     );
diff --git a/machines/canopus/configuration.nix b/machines/canopus/configuration.nix
index 21ddf28..f66e559 100644
--- a/machines/canopus/configuration.nix
+++ b/machines/canopus/configuration.nix
@@ -13,6 +13,7 @@ in
 
   imports = [ inputs.frappix.nixosModules.x86_64-linux.frappix ];
   nixpkgs.overlays = [
+    inputs.self.overlays.packagesOverlay
     inputs.self.overlays.frappixFrappeOverlay
     inputs.self.overlays.frappixLibsOverlay
     inputs.self.overlays.frappixPythonOverlay
@@ -47,6 +48,8 @@ in
     apps = [
       pkgs.frappix.erpnext
       pkgs.frappix.hrms
+      pkgs.erpnext_thailand
+      pkgs.thai_payroll
     ];
     sites = {
       "${sitename}" = {
diff --git a/pkgs/frappe/erpnext_thailand/default.nix b/pkgs/frappe/erpnext_thailand/default.nix
new file mode 100644
index 0000000..8d369e1
--- /dev/null
+++ b/pkgs/frappe/erpnext_thailand/default.nix
@@ -0,0 +1,37 @@
+{
+  buildPythonPackage,
+  pythonRelaxDepsHook,
+  flit-core,
+  fetchFromGitHub,
+  mkAssets,
+  pandas,
+}:
+buildPythonPackage (finalAttrs: {
+
+  pname = "erpnext_thailand";
+  version = "1.0.2";
+  format = "pyproject";
+
+  src =
+    let
+      erpnext_thailand_src = fetchFromGitHub {
+        owner = "ecosoft-frappe";
+        repo = "erpnext_thailand";
+        rev = "69ebd41b6e616a96677f79f57019a4bcd310b638";
+        hash = "sha256-72acMrJQKEQKp/u3gcUSBZ6mYbAKCD240j2zMARwUEc=";
+      };
+    in
+    mkAssets {
+      src = erpnext_thailand_src;
+      inherit (finalAttrs) pname version;
+      yarnHash = "";
+    };
+
+  dependencies = [ pandas ];
+
+  nativeBuildInputs = [
+    pythonRelaxDepsHook
+    flit-core
+  ];
+
+})
diff --git a/pkgs/frappe/thai_payroll/default.nix b/pkgs/frappe/thai_payroll/default.nix
new file mode 100644
index 0000000..32342cc
--- /dev/null
+++ b/pkgs/frappe/thai_payroll/default.nix
@@ -0,0 +1,37 @@
+{
+  buildPythonPackage,
+  pythonRelaxDepsHook,
+  flit-core,
+  fetchFromGitHub,
+  mkAssets,
+  pandas,
+}:
+buildPythonPackage (finalAttrs: {
+
+  pname = "thai_payroll";
+  version = "0.0.1";
+  format = "pyproject";
+
+  src =
+    let
+      erpnext_thailand_src = fetchFromGitHub {
+        owner = "ecosoft-frappe";
+        repo = "thai_payroll";
+        rev = "c3ceefb0fc6f29ed05c1086bb6dfb4eeaf59f779";
+        hash = "sha256-tYJU6EmIqa8hZ1eNaOVvJUjg8S+ANqZVAqWnnjY/2oY=";
+      };
+    in
+    mkAssets {
+      src = erpnext_thailand_src;
+      inherit (finalAttrs) pname version;
+      yarnHash = "";
+    };
+
+  dependencies = [ pandas ];
+
+  nativeBuildInputs = [
+    pythonRelaxDepsHook
+    flit-core
+  ];
+
+})
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index d8ab3c0..4d56124 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -26,4 +26,6 @@ final: prev: {
     })
   ];
   inventree = final.callPackage ./inventree { python3 = final.python312; };
+  erpnext_thailand = final.python3.pkgs.callPackage ./frappe/erpnext_thailand/default.nix { };
+  thai_payroll = final.python3.pkgs.callPackage ./frappe/thai_payroll/default.nix { };
 }