Introduce a cysystemd package.

nix/configuration/roles/amd_s2idle/cysystemd.nix

@@ -0,0 +1,76 @@
+# unpackPhase
+# patchPhase
+# configurePhase
+# buildPhase
+# checkPhase
+# installPhase
+# fixupPhase
+# installCheckPhase
+# distPhase
+{
+  stdenv,
+  pkgs,
+  sqlite,
+  makeWrapper,
+  lib,
+  python3,
+  systemd,
+  # setuptools,
+  # cython,
+  pkg-config,
+  # python3Packages,
+  ...
+}:
+let
+  version = "1.6.3";
+in
+python3.pkgs.buildPythonPackage {
+  pname = "cysystemd";
+  version = version;
+  pyproject = true;
+
+  # format = "pyproject";
+
+  build-system = [
+    python3.pkgs.setuptools
+    python3.pkgs.cython
+  ];
+  buildInputs = [ systemd ];
+  nativeBuildInputs = with python3.pkgs; [
+    # setuptools
+    # setuptools-git-versioning
+    # setuptools-git
+    # pyudev
+    # pkgs.systemd
+    pkg-config
+  ];
+  propagatedBuildInputs = with python3.pkgs; [
+    # pyudev
+    # pandas
+    # jinja2
+    # tabulate
+    # seaborn
+    # cysystemd
+    # jinja2
+    # matplotlib
+    # seaborn
+  ];
+  src = pkgs.fetchgit {
+    url = "https://github.com/mosquito/cysystemd.git";
+    tag = version;
+    sha256 = "sha256-xumrQgoKfFeKdRQUIYXXiXEcNd76i4wo/EIDm8BN7oU=";
+    # leaveDotGit = true;
+  };
+
+  # postPatch = ''
+  #   substituteInPlace pyproject.toml \
+  #     --replace-fail ', "setuptools-git-versioning>=2.0,<3"' ""
+  # '';
+
+  meta = with lib; {
+    description = " systemd wrapper on Cython";
+    homepage = "https://github.com/mosquito/cysystemd";
+    license = licenses.asl20;
+    platforms = platforms.linux;
+  };
+}