diff --git a/flake.nix b/flake.nix
index 853e295..7e7576a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -189,6 +189,74 @@
           };
         };
       in {
+        py3-datetime = pkgs.python3Packages.buildPythonPackage rec {
+          pname = "DateTime";
+          version = "5.5";
+          
+          src = pkgs.fetchPypi {
+            inherit pname version;
+            sha256 = "sha256-IexjMfh6f8tXvXxZ6KaL//5vy/Ws27x7NW1qmgIBkdM=";
+          };
+        };
+        py3-marzban = pkgs.python3Packages.buildPythonPackage rec {
+          pname = "marzban";
+          version = "0.4.3";
+          
+          src = pkgs.fetchPypi {
+            inherit pname version;
+            sha256 = "sha256-z71Wl4AuET3oES7/48u+paL9F12SdrkohcEee/tkWVk=";
+          };
+
+          format = "pyproject";
+          
+          propagatedBuildInputs = with pkgs.python3Packages; [
+            httpx
+            paramiko
+            sshtunnel
+          ];
+          nativeBuildInputs = (with pkgs.python3Packages; [
+            setuptools
+            wheel
+            setuptools-scm
+            httpx
+            pydantic
+            paramiko
+            sshtunnel
+          ]) ++ (with self.packages.${system}; [
+            py3-datetime
+          ]);
+
+          doCheck = false;
+        };
+        py3-asyncpayments = pkgs.python3Packages.buildPythonPackage rec {
+          pname = "asyncpayments";
+          version = "1.4.6";
+          
+          src = pkgs.fetchPypi {
+            inherit pname version;
+            sha256 = "sha256-t7AZiRb7DHZgJHPNQwAEuc0mrTQ14+82d19VomTjs8U=";
+          };
+
+          format = "pyproject";
+          
+          nativeBuildInputs = with pkgs.python3Packages; [ setuptools wheel setuptools-scm ];
+          propagatedBuildInputs = with pkgs.python3Packages; [ aiohttp requests ];
+          
+          doCheck = false;
+        };
+        py3-payok = pkgs.python3Packages.buildPythonPackage rec {
+          pname = "payok";
+          version = "1.2";
+          
+          src = pkgs.fetchPypi {
+            inherit pname version;
+            sha256 = "sha256-UN+MSNGhrPpw7hZRLAx8XY3jC0ldo+DlbaSJ64wWBHo=";
+          };
+          
+          propagatedBuildInputs = with pkgs.python3Packages; [ requests ];
+          
+          doCheck = false;
+        };
         py3-asyncio = pkgs.python3Packages.buildPythonPackage rec {
           pname = "asyncio";
           version = "3.4.3";