migrating dev environments to output

base.nix

@@ -3,6 +3,7 @@
   pkgs,
   inputs,
   outputs,
+  config,
   ...
 }:
 {

flake.nix

@@ -84,6 +84,10 @@
         workstation = createConfig "workstation" inputs.nixpkgs;
         miniserver = createConfig "miniserver" inputs.nixpkgs-small;
         server = createConfig "server" inputs.nixpkgs-small;
+        shell = createConfig "shell" inputs.nixpkgs;
+      };
+      devShells.${system} = {
+        python = self.nixosConfigurations.shell.config.devShells.python;
       };
     };
 }

hosts/shell/configuration.nix

@@ -0,0 +1,7 @@
+{ ... }:
+{
+  imports = [
+    ../../base.nix
+    ../../stylix.nix
+  ];
+}

modules/dev/python.nix

@@ -4,20 +4,8 @@
   pkgs,
   ...
 }:
-{
-  options.my.dev.python.enable = lib.mkEnableOption "enable";
-  config = lib.mkIf config.my.dev.python.enable {
-    home-manager.users.jawz.xdg.configFile."python/pythonrc".source = ../../dotfiles/pythonrc;
-    environment.variables.PYTHONSTARTUP = "\${XDG_CONFIG_HOME}/python/pythonrc";
-    users.users.jawz.packages =
-      builtins.attrValues {
-        inherit (pkgs)
-          pipenv # python development workflow for humans
-          pyright # LSP
-          ;
-      }
-      ++ [
-        (pkgs.python3.withPackages (
+let
+  python = pkgs.python3.withPackages (
     ps:
     builtins.attrValues {
       inherit (ps)
@@ -31,7 +19,39 @@
         speedtest-cli # check internet speed from the comand line
         ;
     }
-        ))
-      ];
+  );
+  packages =
+    [ python ]
+    ++ builtins.attrValues {
+      inherit (pkgs)
+        pipenv # python development workflow for humans
+        pyright # LSP
+        ;
     };
+in
+{
+  options = {
+    my.dev.python.enable = lib.mkEnableOption "Install Python tools globally";
+    devShells.python = lib.mkOption {
+      type = lib.types.package;
+      default = pkgs.mkShell {
+        inherit packages;
+        name = "python-dev-shell";
+        shellHook = ''
+          echo "🐍 Python dev environment"
+          which python
+        '';
+        description = "Python development shell";
+      };
+    };
+  };
+  config = lib.mkMerge [
+    (lib.mkIf config.my.dev.python.enable {
+      users.users.jawz.packages = packages;
+    })
+    {
+      home-manager.users.jawz.xdg.configFile."python/pythonrc".source = ../../dotfiles/pythonrc;
+      environment.variables.PYTHONSTARTUP = "\${XDG_CONFIG_HOME}/python/pythonrc";
+    }
+  ];
 }