trying

flake.nix

@@ -10,67 +10,78 @@
     flake-utils.lib.eachDefaultSystem (system:
       let
         # Function to create a Python environment with a given version
-        mkPython = { 
+        mkPython = {
           pythonVersion ? "python313",  # Default Python version
           extraPackages ? [], # Additional packages to include
           extraSystemPackages ? [] # Additional system packages
         }:
         let
           pkgs = import nixpkgs { inherit system; };
-          
+
           # Select Python version based on the parameter
           python = pkgs.${pythonVersion};
-
-          handlePackageCompatibility = pythonPackages: 
-            let
-              fixSphinx = ps: 
-                if ps ? sphinx 
-                then ps.sphinx.overridePythonAttrs (old: { version = "7.2.6"; })
-                else ps.sphinx;
-            in
-              pythonPackages;
           
+          # Define package overrides for specific Python versions
+          packageOverrides = self: super: {
+            # Fix Sphinx for Python 3.10
+            sphinx = if pythonVersion == "python310" then
+              super.sphinx.overridePythonAttrs (old: { 
+                version = "7.2.6";  # Use a version known to work with Python 3.10
+                doCheck = false;    # Skip tests to avoid compatibility issues
+              })
+            else
+              super.sphinx;
+            
+            # Add more package overrides as needed
+          };
+          
+          # Create Python with package overrides
+          pythonWithOverrides = python.override {
+            packageOverrides = packageOverrides;
+          };
+
           # Base Python packages that are always included
           basePackages = ps: with ps; [
             # Data science
             numpy
             pandas
             matplotlib
-            
+
             # Development tools
             black
             pytest
             ipython
-            
+
             # Add more default packages as needed
           ];
-          
+
           # Combine base packages with extra packages
           allPackages = ps: (basePackages ps) ++ (extraPackages ps);
-          
+
-          # Create the Python environment
+          # Create the Python environment using the Python with overrides
-          pythonEnv = python.withPackages allPackages;
+          pythonEnv = pythonWithOverrides.withPackages allPackages;
         in
           {
             # The Python environment
             package = pythonEnv;
-            
+
             # Make the chosen Python version accessible
-            inherit python pythonVersion;
+            python = pythonWithOverrides;
-            
+            inherit pythonVersion;
+
             # Development shell with the Python environment
             devShell = pkgs.mkShell {
               buildInputs = [
                 pythonEnv
               ] ++ extraSystemPackages;
-              
+
               shellHook = ''
-                echo "Python $(${python}/bin/python --version)"
+                echo "Python $(${pythonWithOverrides}/bin/python --version)"
                 echo "Custom Python environment activated!"
               '';
             };
           };
-          
+
         # Default Python configuration
         defaultPython = mkPython {};
       in
@@ -79,49 +90,49 @@
         lib = {
           inherit mkPython;
         };
-        
+
         # Default packages using default Python version
         packages = {
           default = defaultPython.package;
         };
-        
+
         # Default development shell
         devShells.default = defaultPython.devShell;
-        
+
         # NixOS module for system-wide integration
         nixosModules.default = { config, lib, pkgs, ... }:
           with lib;
-          let 
+          let
             cfg = config.services.customPython;
           in {
             options.services.customPython = {
               enable = mkEnableOption "Enable the custom Python environment";
-              
+
               pythonVersion = mkOption {
                 type = types.str;
                 default = "python311";
                 description = "Python version to use (e.g., python39, python310, python311)";
               };
-              
+
               extraPackages = mkOption {
                 type = types.functionTo (types.listOf types.anything);
                 default = _: [];
                 description = "Extra Python packages to include";
               };
-              
+
               extraSystemPackages = mkOption {
                 type = types.listOf types.package;
                 default = [];
                 description = "Extra system packages to include";
               };
-              
+
               includeInSystemPackages = mkOption {
                 type = types.bool;
                 default = true;
                 description = "Whether to include the Python environment in system packages";
               };
             };
-            
+
             config = mkIf cfg.enable {
               environment.systemPackages = mkIf cfg.includeInSystemPackages [
                 (mkPython {