{pkgs, ...}: let
  python = pkgs.python312;
  spacyModelEn = python.pkgs.buildPythonPackage rec {
    pname = "en-core-web-sm";
    version = "3.8.0";
    format = "wheel";

    src = pkgs.fetchurl {
      url = "https://github.com/explosion/spacy-models/releases/download/en_core_web_sm-${version}/en_core_web_sm-${version}-py3-none-any.whl";
      hash = "sha256-GTJCnbcn1L/z3u1rNM/AXfF3lPSlLusmz4ko98Gg+4U=";
    };

    propagatedBuildInputs = with python.pkgs; [
      spacy
    ];

    doCheck = false;
    pythonImportsCheck = ["en_core_web_sm"];
  };

  espeakngLoaderPkg = python.pkgs.buildPythonPackage rec {
    pname = "espeakng-loader";
    version = "0.2.4";
    format = "wheel";

    src = python.pkgs.fetchPypi {
      pname = "espeakng_loader";
      inherit version;
      format = "wheel";
      dist = "py3";
      python = "py3";
      abi = "none";
      platform = "manylinux_2_17_x86_64.manylinux2014_x86_64";
      hash = "sha256-CHIbryfRPUYfa+bu2aZSd+cNaCNP9IT9i5iXsiLNy20=";
    };

    doCheck = false;
    pythonImportsCheck = ["espeakng_loader"];
  };

  misakiPkg = python.pkgs.buildPythonPackage rec {
    pname = "misaki";
    version = "0.9.4";
    pyproject = true;

    src = python.pkgs.fetchPypi {
      inherit pname version;
      hash = "sha256-OWD6Pm3heakO6OYoRGpKT2uMcwtuNBCZnPOWGJ9NnEA=";
    };

    nativeBuildInputs = with python.pkgs; [
      hatchling
    ];

    propagatedBuildInputs = with python.pkgs; [
      spacyModelEn
      num2words
      addict
      numpy
      regex
      requests
      tqdm
      spacy
      espeakngLoaderPkg
    ];

    doCheck = false;
    pythonImportsCheck = ["misaki"];
  };

  kokoroPkg = python.pkgs.buildPythonPackage rec {
    pname = "kokoro";
    version = "0.9.4";
    pyproject = true;

    src = python.pkgs.fetchPypi {
      inherit pname version;
      hash = "sha256-+/YzJieX+M9G/awzFc+creZ9yLdiwP7M8zSJJ3L7msQ=";
    };

    nativeBuildInputs = with python.pkgs; [
      hatchling
    ];

    propagatedBuildInputs = with python.pkgs; [
      torch
      numpy
      scipy
      soundfile
      huggingface-hub
      loguru
      tqdm
      regex
      requests
      transformers
      misakiPkg

      phonemizer
    ];

    doCheck = false;
    pythonImportsCheck = ["kokoro"];
  };

  slopPython = python.withPackages (ps: [
    ps.spacy
    ps.num2words
    ps.addict
    ps.requests
    ps.pillow
    ps.numpy
    ps.soundfile
    ps.scipy
    ps.tqdm
    ps.regex
    ps.torch
    ps.transformers
    ps.huggingface-hub
    ps.phonemizer
    kokoroPkg
    misakiPkg
    espeakngLoaderPkg
    spacyModelEn
  ]);
in {
  documentation.doc.enable = false;

  environment.systemPackages = with pkgs; [
    ffmpeg
    git
    yt-dlp
    espeak-ng
    slopPython
  ];
}