diff --git a/lib/renderers.nix b/lib/renderers.nix
index df26bc4..39009e6 100644
--- a/lib/renderers.nix
+++ b/lib/renderers.nix
@@ -69,7 +69,7 @@ in
 
     Example:
       # buildPythonPackage { project = lib.project.loadPyproject ...; python = pkgs.python3;  }
-        { pname = "blinker"; version = "1.3.3.7"; propagatedBuildInputs = [ ]; }
+        { pname = "blinker"; version = "1.3.3.7"; dependencies = [ ]; }
     */
   buildPythonPackage =
     {
@@ -82,7 +82,7 @@ in
     , # Map a Python extras group name to a Nix attribute set like:
       # { dev = "checkInputs"; }
       # This is intended to be used with optionals such as test dependencies that you might
-      # want to add to checkInputs instead of propagatedBuildInputs
+      # want to add to checkInputs instead of dependencies
       extrasAttrMappings ? { }
     , # Which package format to pass to buildPythonPackage
       # If the format is "wheel" PEP-518 build-systems are excluded from the build.
@@ -142,19 +142,20 @@ in
     foldl'
       (attrs: group:
       let
-        attr = extrasAttrMappings.${group} or "propagatedBuildInputs";
+        attr = extrasAttrMappings.${group} or "dependencies";
       in
       attrs // {
         ${attr} = attrs.${attr} or [ ] ++ map (dep: python.pkgs.${dep}) namedDeps.extras.${group};
       })
       ({
-        propagatedBuildInputs = map (dep: python.pkgs.${dep}) namedDeps.dependencies;
-        inherit format meta;
-        passthru = {
-          optional-dependencies = lib.mapAttrs (_group: deps: map (dep: python.pkgs.${dep.name}) deps) project.dependencies.extras;
-        };
+        pyproject = format == "pyproject";
+        dependencies = map (dep: python.pkgs.${dep}) namedDeps.dependencies;
+        optional-dependencies = lib.mapAttrs (_group: deps: map (dep: python.pkgs.${dep.name}) deps) project.dependencies.extras;
+        inherit meta;
+      } // optionalAttrs (format != "pyproject") {
+        inherit format;
       } // optionalAttrs (format != "wheel") {
-        nativeBuildInputs =
+        build-system =
           if namedDeps.build-systems != [ ] then map (dep: pythonPackages.${dep}) namedDeps.build-systems
           else [ pythonPackages.setuptools pythonPackages.wheel ];
       } // optionalAttrs (pyproject.project ? name) {
diff --git a/lib/test_project.nix b/lib/test_project.nix
index 5f7870f..097f47a 100644
--- a/lib/test_project.nix
+++ b/lib/test_project.nix
@@ -45,10 +45,10 @@ lib.fix (self: {
           getPkgs' = getPkgs mocks.cpythonLinux38;
         in
         {
-          format = "pyproject";
+          pyproject = true;
           disabled = true;
           meta = { description = "Powerful data structures for data analysis, time series, and statistics"; };
-          passthru.optional-dependencies = lib.mapAttrs (_: getPkgs') {
+          optional-dependencies = lib.mapAttrs (_: getPkgs') {
             all = [ "beautifulsoup4" "bottleneck" "brotlipy" "fastparquet" "fsspec" "gcsfs" "html5lib" "hypothesis" "Jinja2" "lxml" "matplotlib" "numba" "numexpr" "odfpy" "openpyxl" "pandas-gbq" "psycopg2" "pyarrow" "PyMySQL" "PyQt5" "pyreadstat" "pytest" "pytest-xdist" "pytest-asyncio" "python-snappy" "pyxlsb" "QtPy" "scipy" "s3fs" "SQLAlchemy" "tables" "tabulate" "xarray" "xlrd" "xlsxwriter" "zstandard" ];
             aws = [ "s3fs" ];
             clipboard = [ "PyQt5" "QtPy" ];
@@ -71,7 +71,7 @@ lib.fix (self: {
             test = [ "hypothesis" "pytest" "pytest-xdist" "pytest-asyncio" ];
             xml = [ "lxml" ];
           };
-          nativeBuildInputs = getPkgs' [
+          build-system = getPkgs' [
             "meson-python"
             "meson"
             "wheel"
@@ -80,7 +80,7 @@ lib.fix (self: {
             "versioneer"
           ];
           pname = "pandas";
-          propagatedBuildInputs = getPkgs' [
+          dependencies = getPkgs' [
             "numpy"
             "python-dateutil"
             "pytz"
@@ -117,8 +117,8 @@ lib.fix (self: {
         {
           disabled = false;
           src = true;
-          format = "pyproject";
-          passthru.optional-dependencies = lib.mapAttrs (_: getPkgs') {
+          pyproject = true;
+          optional-dependencies = lib.mapAttrs (_: getPkgs') {
             all = [ "pdm" ];
             cookiecutter = [ "cookiecutter" ];
             copier = [ "copier" ];
@@ -144,11 +144,11 @@ lib.fix (self: {
             };
             mainProgram = "pdm";
           };
-          nativeBuildInputs = getPkgs mocks.cpythonLinux38 [
+          build-system = getPkgs mocks.cpythonLinux38 [
             "pdm-backend"
           ];
           pname = "pdm";
-          propagatedBuildInputs = getPkgs mocks.cpythonLinux38 [
+          dependencies = getPkgs mocks.cpythonLinux38 [
             "blinker"
             "certifi"
             "packaging"
@@ -189,8 +189,8 @@ lib.fix (self: {
           getPkgs' = getPkgs mocks.cpythonLinux38;
         in
         {
-          format = "pyproject";
-          passthru.optional-dependencies = lib.mapAttrs (_: getPkgs') {
+          pyproject = true;
+          optional-dependencies = lib.mapAttrs (_: getPkgs') {
             dev = [ "pre-commit" ];
             github-actions = [ "pytest-github-actions-annotate-failures" ];
             test = [ "cachy" "deepdiff" "deepdiff" "httpretty" "pytest" "pytest-cov" "pytest-mock" "pytest-randomly" "pytest-xdist" "zipp" ];
@@ -209,11 +209,11 @@ lib.fix (self: {
             };
             mainProgram = "poetry";
           };
-          nativeBuildInputs = getPkgs mocks.cpythonLinux38 [
+          build-system = getPkgs mocks.cpythonLinux38 [
             "poetry-core"
           ];
           pname = "poetry";
-          propagatedBuildInputs = getPkgs mocks.cpythonLinux38 [
+          dependencies = getPkgs mocks.cpythonLinux38 [
             "build"
             "cachecontrol"
             "cleo"
diff --git a/lib/test_renderers.nix b/lib/test_renderers.nix
index 664a8ed..d761a7d 100644
--- a/lib/test_renderers.nix
+++ b/lib/test_renderers.nix
@@ -20,11 +20,9 @@ let
   # Clear drv inputs from stuff like version and just return the name string
   # so our tests don't start failing randomly just because we upgrade and nixpkgs moved
   clearDrvInputs = attrs: attrs // {
-    propagatedBuildInputs = map (drv: drv.pname) attrs.propagatedBuildInputs;
-    nativeBuildInputs = map (drv: drv.pname) attrs.nativeBuildInputs;
-    passthru = attrs.passthru // {
-      optional-dependencies = lib.mapAttrs (_group: deps: map (drv: drv.pname) deps) attrs.passthru.optional-dependencies;
-    };
+    dependencies = map (drv: drv.pname) attrs.dependencies;
+    build-system = map (drv: drv.pname) attrs.build-system;
+    optional-dependencies = lib.mapAttrs (_group: deps: map (drv: drv.pname) deps) attrs.optional-dependencies;
   } // optionalAttrs (attrs ? checkInputs) {
     checkInputs = map (drv: drv.pname) attrs.checkInputs;
   };
@@ -55,16 +53,16 @@ in
       });
       expected = {
         disabled = false;
-        format = "pyproject";
+        pyproject = true;
         meta = {
           description = "A modern Python package and dependency manager supporting the latest PEP standards";
           license = lib.licenses.mit;
           mainProgram = "pdm";
         };
-        nativeBuildInputs = [ "pdm-backend" ];
+        build-system = [ "pdm-backend" ];
         pname = "pdm";
-        passthru = { optional-dependencies = { all = [ "pdm" ]; cookiecutter = [ "cookiecutter" ]; copier = [ "copier" ]; doc = [ "mkdocs" "mkdocs-material" "mkdocstrings" "mike" "setuptools" "markdown-exec" "mkdocs-redirects" ]; keyring = [ "keyring" ]; pytest = [ "pytest" "pytest-mock" ]; template = [ "pdm" ]; test = [ "pdm" "pytest-cov" "pytest-xdist" "pytest-rerunfailures" "pytest-httpserver" ]; tox = [ "tox" "tox-pdm" ]; truststore = [ "truststore" ]; workflow = [ "pdm-pep517" "parver" "towncrier" "pycomplete" ]; }; };
-        propagatedBuildInputs = [ "blinker" "certifi" "packaging" "platformdirs" "rich" "virtualenv" "pyproject-hooks" "requests-toolbelt" "unearth" "findpython" "tomlkit" "shellingham" "python-dotenv" "resolvelib" "installer" "cachecontrol" "tomli" "importlib-resources" "importlib-metadata" ];
+        optional-dependencies = { all = [ "pdm" ]; cookiecutter = [ "cookiecutter" ]; copier = [ "copier" ]; doc = [ "mkdocs" "mkdocs-material" "mkdocstrings" "mike" "setuptools" "markdown-exec" "mkdocs-redirects" ]; keyring = [ "keyring" ]; pytest = [ "pytest" "pytest-mock" ]; template = [ "pdm" ]; test = [ "pdm" "pytest-cov" "pytest-xdist" "pytest-rerunfailures" "pytest-httpserver" ]; tox = [ "tox" "tox-pdm" ]; truststore = [ "truststore" ]; workflow = [ "pdm-pep517" "parver" "towncrier" "pycomplete" ]; };
+        dependencies = [ "blinker" "certifi" "packaging" "platformdirs" "rich" "virtualenv" "pyproject-hooks" "requests-toolbelt" "unearth" "findpython" "tomlkit" "shellingham" "python-dotenv" "resolvelib" "installer" "cachecontrol" "tomli" "importlib-resources" "importlib-metadata" ];
       };
     };
 
@@ -94,16 +92,16 @@ in
       expected = {
         disabled = false;
         checkInputs = [ "tox" "tox-pdm" ];
-        format = "pyproject";
+        pyproject = true;
         meta = {
           description = "A modern Python package and dependency manager supporting the latest PEP standards";
           license = lib.licenses.mit;
           mainProgram = "pdm";
         };
-        nativeBuildInputs = [ "pdm-backend" ];
+        build-system = [ "pdm-backend" ];
         pname = "pdm";
-        passthru = { optional-dependencies = { all = [ "pdm" ]; cookiecutter = [ "cookiecutter" ]; copier = [ "copier" ]; doc = [ "mkdocs" "mkdocs-material" "mkdocstrings" "mike" "setuptools" "markdown-exec" "mkdocs-redirects" ]; keyring = [ "keyring" ]; pytest = [ "pytest" "pytest-mock" ]; template = [ "pdm" ]; test = [ "pdm" "pytest-cov" "pytest-xdist" "pytest-rerunfailures" "pytest-httpserver" ]; tox = [ "tox" "tox-pdm" ]; truststore = [ "truststore" ]; workflow = [ "pdm-pep517" "parver" "towncrier" "pycomplete" ]; }; };
-        propagatedBuildInputs = [ "blinker" "certifi" "packaging" "platformdirs" "rich" "virtualenv" "pyproject-hooks" "requests-toolbelt" "unearth" "findpython" "tomlkit" "shellingham" "python-dotenv" "resolvelib" "installer" "cachecontrol" "tomli" "importlib-resources" "importlib-metadata" ];
+        optional-dependencies = { all = [ "pdm" ]; cookiecutter = [ "cookiecutter" ]; copier = [ "copier" ]; doc = [ "mkdocs" "mkdocs-material" "mkdocstrings" "mike" "setuptools" "markdown-exec" "mkdocs-redirects" ]; keyring = [ "keyring" ]; pytest = [ "pytest" "pytest-mock" ]; template = [ "pdm" ]; test = [ "pdm" "pytest-cov" "pytest-xdist" "pytest-rerunfailures" "pytest-httpserver" ]; tox = [ "tox" "tox-pdm" ]; truststore = [ "truststore" ]; workflow = [ "pdm-pep517" "parver" "towncrier" "pycomplete" ]; };
+        dependencies = [ "blinker" "certifi" "packaging" "platformdirs" "rich" "virtualenv" "pyproject-hooks" "requests-toolbelt" "unearth" "findpython" "tomlkit" "shellingham" "python-dotenv" "resolvelib" "installer" "cachecontrol" "tomli" "importlib-resources" "importlib-metadata" ];
       };
     };
   };