diff --git a/modules/dream2nix/buildPythonPackage-mixin/README.md b/modules/dream2nix/buildPythonPackage-mixin/README.md
new file mode 100644
index 00000000..dd04564f
--- /dev/null
+++ b/modules/dream2nix/buildPythonPackage-mixin/README.md
@@ -0,0 +1,6 @@
+---
+title: "buildPythonPackage"
+state: "internal"
+maintainers:
+  - DavHau
+---
diff --git a/modules/dream2nix/buildPythonPackage-mixin/default.nix b/modules/dream2nix/buildPythonPackage-mixin/default.nix
new file mode 100644
index 00000000..732ba10c
--- /dev/null
+++ b/modules/dream2nix/buildPythonPackage-mixin/default.nix
@@ -0,0 +1,26 @@
+{
+  config,
+  dream2nix,
+  lib,
+  ...
+}: let
+  l = lib // builtins;
+
+  buildPythonPackageOptions = import ../buildPythonPackage/options.nix {inherit config lib;};
+
+  keepArg = key: val: buildPythonPackageOptions ? ${key};
+in {
+  imports = [
+    ./interface.nix
+    dream2nix.modules.dream2nix.mkDerivation-mixin
+    dream2nix.modules.dream2nix.deps
+  ];
+  config = {
+    package-func.func = config.deps.python.pkgs.buildPythonPackage;
+    package-func.args = lib.filterAttrs keepArg config;
+
+    deps = {nixpkgs, ...}: {
+      python = l.mkOptionDefault nixpkgs.python3;
+    };
+  };
+}
diff --git a/modules/dream2nix/buildPythonPackage-mixin/interface.nix b/modules/dream2nix/buildPythonPackage-mixin/interface.nix
new file mode 100644
index 00000000..a3c4e978
--- /dev/null
+++ b/modules/dream2nix/buildPythonPackage-mixin/interface.nix
@@ -0,0 +1,27 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  l = lib // builtins;
+  t = l.types;
+
+  buildPythonPackageOptions = import ../buildPythonPackage/options.nix {inherit config lib;};
+in {
+  options =
+    buildPythonPackageOptions
+    // {
+      deps.python = l.mkOption {
+        type = t.package;
+        description = "The python interpreter package to use";
+      };
+    };
+
+  config = {
+    format = lib.mkOptionDefault (
+      if config.pyproject == null
+      then "setuptools"
+      else null
+    );
+  };
+}
diff --git a/modules/dream2nix/buildPythonPackage-mixin/tests/packages/basic/default.nix b/modules/dream2nix/buildPythonPackage-mixin/tests/packages/basic/default.nix
new file mode 100644
index 00000000..b7818561
--- /dev/null
+++ b/modules/dream2nix/buildPythonPackage-mixin/tests/packages/basic/default.nix
@@ -0,0 +1,16 @@
+{
+  config,
+  lib,
+  dream2nix,
+  ...
+}: {
+  imports = [
+    dream2nix.modules.dream2nix.buildPythonPackage-mixin
+    dream2nix.modules.dream2nix.core
+  ];
+  name = "test";
+  version = "1.0.0";
+  phases = ["buildPhase"];
+  buildPhase = "echo -n hello > $out && cp $out $dist";
+  format = "setuptools";
+}
diff --git a/modules/dream2nix/buildPythonPackage/interface.nix b/modules/dream2nix/buildPythonPackage/interface.nix
index 02a13403..d2b66855 100644
--- a/modules/dream2nix/buildPythonPackage/interface.nix
+++ b/modules/dream2nix/buildPythonPackage/interface.nix
@@ -6,201 +6,20 @@
   l = lib // builtins;
   t = l.types;
 
-  boolOpt = l.mkOption {
-    type = t.bool;
-    default = false;
-  };
+  buildPythonPackageOptions = import ./options.nix {inherit config lib;};
 in {
-  options.deps.python = l.mkOption {
-    type = t.package;
-    description = "The python interpreter package to use";
+  options = {
+    buildPythonPackage = buildPythonPackageOptions;
+    deps.python = l.mkOption {
+      type = t.package;
+      description = "The python interpreter package to use";
+    };
   };
-
-  options.buildPythonPackage = {
-    disabled =
-      boolOpt
-      // {
-        description = ''
-          used to disable derivation, useful for specific python versions
-        '';
-      };
-
-    catchConflicts =
-      boolOpt
-      // {
-        description = ''
-          Raise an error if two packages are installed with the same name
-          TODO: For cross we probably need a different PYTHONPATH, or not
-          add the runtime deps until after buildPhase.
-        '';
-        default =
-          config.deps.python.stdenv.hostPlatform
-          == config.deps.python.stdenv.buildPlatform;
-        defaultText = ''
-          true if the host and build platforms are the same, false otherwise.
-        '';
-      };
-
-    dontWrapPythonPrograms =
-      boolOpt
-      // {
-        description = ''
-          Skip wrapping of python programs altogether
-        '';
-      };
-
-    makeWrapperArgs = l.mkOption {
-      type = t.listOf t.str;
-      default = [];
-      description = ''
-        Additional arguments to pass to the makeWrapper function, which wraps generated binaries.
-      '';
-    };
-
-    dontUsePipInstall =
-      boolOpt
-      // {
-        description = ''
-          Don't use Pip to install a wheel
-          Note this is actually a variable for the pipInstallPhase in pip's setupHook.
-          It's included here to prevent an infinite recursion.
-        '';
-      };
-
-    permitUserSite =
-      boolOpt
-      // {
-        description = ''
-          Skip setting the PYTHONNOUSERSITE environment variable in wrapped programs
-        '';
-      };
-
-    removeBinBytecode =
-      boolOpt
-      // {
-        default = true;
-        description = ''
-          Remove bytecode from bin folder.
-          When a Python script has the extension `.py`, bytecode is generated
-          Typically, executables in bin have no extension, so no bytecode is generated.
-          However, some packages do provide executables with extensions, and thus bytecode is generated.
-        '';
-      };
-
-    pyproject = l.mkOption {
-      type = t.nullOr t.bool;
-      default = null;
-      description = ''
-        Whether the pyproject format should be used. When set to `true`,
-        `pypaBuildHook` will be used, and you can add the required build dependencies
-        from `build-system.requires` to `build-system`.
-
-        Note that the pyproject format falls back to using `setuptools`, so
-        you can use `pyproject = true` even if the package only has a `setup.py`.
-        When set to `false`, you can use the existing hooks or provide your own
-        logic to build the package. This can be useful for packages that don't
-        support the pyproject format.
-
-        When unset, the legacy `setuptools` hooks are used for backwards compatibility.
-      '';
-    };
-
-    build-system = l.mkOption {
-      type = t.listOf (t.oneOf [t.str t.path t.package]);
-      default = [];
-      description = ''
-        Build-time only Python dependencies. Items listed in `build-system.requires`/`setup_requires`.
-      '';
-    };
-
-    dependencies = l.mkOption {
-      type = t.listOf (t.oneOf [t.str t.path t.package]);
-      default = [];
-      description = ''
-        List of runtime python dependencies. Aside from propagating dependencies,
-        `buildPythonPackage` also injects code into and wraps executables with the
-        paths included in this list. Items listed in `install_requires` go here.
-      '';
-    };
-
-    optional-dependencies = l.mkOption {
-      type = t.attrsOf (t.oneOf [t.str t.path t.package]);
-      default = {};
-      description = ''
-        Optional feature flagged dependencies. Items listed in `extras_requires` go here.
-      '';
-    };
-
-    format = l.mkOption {
-      type = t.nullOr t.str;
-      default =
-        if config.buildPythonPackage.pyproject == null
-        then "setuptools"
-        else null;
-      description = ''
-        Several package formats are supported:
-          `null`: Disable this legacy option and use the new `pyproject` option instead.
-          "setuptools" : Install a common setuptools/distutils based package. This builds a wheel.
-          "wheel" : Install from a pre-compiled wheel.
-          "flit" : Install a flit package. This builds a wheel.
-          "pyproject": Install a package using a ``pyproject.toml`` file (PEP517). This builds a wheel.
-          "egg": Install a package from an egg.
-          "other" : Provide your own buildPhase and installPhase.
-      '';
-    };
-
-    disabledTestPaths = l.mkOption {
-      type = t.listOf t.anything;
-      default = [];
-      description = ''
-        Test paths to ignore in checkPhase
-      '';
-    };
-
-    # previously only set via env
-    disabledTests = l.mkOption {
-      type = t.listOf t.str;
-      default = [];
-      description = ''
-        Disable running specific unit tests
-      '';
-    };
-    pytestFlagsArray = l.mkOption {
-      type = t.listOf t.str;
-      default = [];
-      description = ''
-        Extra flags passed to pytest
-      '';
-    };
-    pipInstallFlags = l.mkOption {
-      type = t.listOf t.str;
-      default = [];
-      description = ''
-        Extra flags passed to `pip install`
-      '';
-    };
-    pythonImportsCheck = l.mkOption {
-      type = t.listOf t.str;
-      default = [];
-      description = ''
-        Check whether importing the listed modules works
-      '';
-    };
-
-    pythonRelaxDeps = l.mkOption {
-      type = t.oneOf [(t.listOf t.str) t.bool];
-      default = [];
-      description = ''
-        List of dependency names on which to remove version constraints.
-        Or the boolean value true to remove all of them
-      '';
-    };
-    pythonRemoveDeps = l.mkOption {
-      type = t.listOf t.str;
-      default = [];
-      description = ''
-        List of dependency names which to remove.
-      '';
-    };
+  config = {
+    buildPythonPackage.format = lib.mkOptionDefault (
+      if config.buildPythonPackage.pyproject == null
+      then "setuptools"
+      else null
+    );
   };
 }
diff --git a/modules/dream2nix/buildPythonPackage/options.nix b/modules/dream2nix/buildPythonPackage/options.nix
new file mode 100644
index 00000000..4c4d1bd3
--- /dev/null
+++ b/modules/dream2nix/buildPythonPackage/options.nix
@@ -0,0 +1,198 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  l = lib // builtins;
+  t = l.types;
+
+  boolOpt = l.mkOption {
+    type = t.bool;
+    default = false;
+  };
+in {
+  disabled =
+    boolOpt
+    // {
+      description = ''
+        used to disable derivation, useful for specific python versions
+      '';
+    };
+
+  catchConflicts =
+    boolOpt
+    // {
+      description = ''
+        Raise an error if two packages are installed with the same name
+        TODO: For cross we probably need a different PYTHONPATH, or not
+        add the runtime deps until after buildPhase.
+      '';
+      default =
+        config.deps.python.stdenv.hostPlatform
+        == config.deps.python.stdenv.buildPlatform;
+      defaultText = ''
+        true if the host and build platforms are the same, false otherwise.
+      '';
+    };
+
+  dontWrapPythonPrograms =
+    boolOpt
+    // {
+      description = ''
+        Skip wrapping of python programs altogether
+      '';
+    };
+
+  makeWrapperArgs = l.mkOption {
+    type = t.listOf t.str;
+    default = [];
+    description = ''
+      Additional arguments to pass to the makeWrapper function, which wraps generated binaries.
+    '';
+  };
+
+  dontUsePipInstall =
+    boolOpt
+    // {
+      description = ''
+        Don't use Pip to install a wheel
+        Note this is actually a variable for the pipInstallPhase in pip's setupHook.
+        It's included here to prevent an infinite recursion.
+      '';
+    };
+
+  permitUserSite =
+    boolOpt
+    // {
+      description = ''
+        Skip setting the PYTHONNOUSERSITE environment variable in wrapped programs
+      '';
+    };
+
+  removeBinBytecode =
+    boolOpt
+    // {
+      default = true;
+      description = ''
+        Remove bytecode from bin folder.
+        When a Python script has the extension `.py`, bytecode is generated
+        Typically, executables in bin have no extension, so no bytecode is generated.
+        However, some packages do provide executables with extensions, and thus bytecode is generated.
+      '';
+    };
+
+  pyproject = l.mkOption {
+    type = t.nullOr t.bool;
+    default = null;
+    description = ''
+      Whether the pyproject format should be used. When set to `true`,
+      `pypaBuildHook` will be used, and you can add the required build dependencies
+      from `build-system.requires` to `build-system`.
+
+      Note that the pyproject format falls back to using `setuptools`, so
+      you can use `pyproject = true` even if the package only has a `setup.py`.
+      When set to `false`, you can use the existing hooks or provide your own
+      logic to build the package. This can be useful for packages that don't
+      support the pyproject format.
+
+      When unset, the legacy `setuptools` hooks are used for backwards compatibility.
+    '';
+  };
+
+  build-system = l.mkOption {
+    type = t.listOf (t.oneOf [t.str t.path t.package]);
+    default = [];
+    description = ''
+      Build-time only Python dependencies. Items listed in `build-system.requires`/`setup_requires`.
+    '';
+  };
+
+  dependencies = l.mkOption {
+    type = t.listOf (t.oneOf [t.str t.path t.package]);
+    default = [];
+    description = ''
+      List of runtime python dependencies. Aside from propagating dependencies,
+      `buildPythonPackage` also injects code into and wraps executables with the
+      paths included in this list. Items listed in `install_requires` go here.
+    '';
+  };
+
+  optional-dependencies = l.mkOption {
+    type = t.attrsOf (t.oneOf [t.str t.path t.package]);
+    default = {};
+    description = ''
+      Optional feature flagged dependencies. Items listed in `extras_requires` go here.
+    '';
+  };
+
+  format = l.mkOption {
+    type = t.nullOr t.str;
+    defaultText = ''
+      "setuptools" if `pyproject` is `null`, otherwise `null`
+    '';
+    description = ''
+      Several package formats are supported:
+        `null`: Disable this legacy option and use the new `pyproject` option instead.
+        "setuptools" : Install a common setuptools/distutils based package. This builds a wheel.
+        "wheel" : Install from a pre-compiled wheel.
+        "flit" : Install a flit package. This builds a wheel.
+        "pyproject": Install a package using a ``pyproject.toml`` file (PEP517). This builds a wheel.
+        "egg": Install a package from an egg.
+        "other" : Provide your own buildPhase and installPhase.
+    '';
+  };
+
+  disabledTestPaths = l.mkOption {
+    type = t.listOf t.anything;
+    default = [];
+    description = ''
+      Test paths to ignore in checkPhase
+    '';
+  };
+
+  # previously only set via env
+  disabledTests = l.mkOption {
+    type = t.listOf t.str;
+    default = [];
+    description = ''
+      Disable running specific unit tests
+    '';
+  };
+  pytestFlagsArray = l.mkOption {
+    type = t.listOf t.str;
+    default = [];
+    description = ''
+      Extra flags passed to pytest
+    '';
+  };
+  pipInstallFlags = l.mkOption {
+    type = t.listOf t.str;
+    default = [];
+    description = ''
+      Extra flags passed to `pip install`
+    '';
+  };
+  pythonImportsCheck = l.mkOption {
+    type = t.listOf t.str;
+    default = [];
+    description = ''
+      Check whether importing the listed modules works
+    '';
+  };
+
+  pythonRelaxDeps = l.mkOption {
+    type = t.oneOf [(t.listOf t.str) t.bool];
+    default = [];
+    description = ''
+      List of dependency names on which to remove version constraints.
+      Or the boolean value true to remove all of them
+    '';
+  };
+  pythonRemoveDeps = l.mkOption {
+    type = t.listOf t.str;
+    default = [];
+    description = ''
+      List of dependency names which to remove.
+    '';
+  };
+}
diff --git a/modules/dream2nix/buildPythonPackage/tests/packages/basic/default.nix b/modules/dream2nix/buildPythonPackage/tests/packages/basic/default.nix
new file mode 100644
index 00000000..a86ebfc4
--- /dev/null
+++ b/modules/dream2nix/buildPythonPackage/tests/packages/basic/default.nix
@@ -0,0 +1,16 @@
+{
+  config,
+  lib,
+  dream2nix,
+  ...
+}: {
+  imports = [
+    dream2nix.modules.dream2nix.buildPythonPackage
+    dream2nix.modules.dream2nix.core
+  ];
+  name = "test";
+  version = "1.0.0";
+  mkDerivation.phases = ["buildPhase"];
+  buildPythonPackage.format = "setuptools";
+  mkDerivation.buildPhase = "echo -n hello > $out && cp $out $dist";
+}