{
  lib,
  python3Packages,
  fetchFromGitHub,
  fetchPypi,
}:

let
  # Internal dependency: pyzotero (not in nixpkgs)
  pyzotero = python3Packages.buildPythonPackage rec {
    pname = "pyzotero";
    version = "1.11.0";
    format = "wheel";

    src = fetchPypi {
      inherit pname version;
      format = "wheel";
      dist = "py3";
      python = "py3";
      hash = "sha256-VDSMczLHnNGs9THyVI/I2MbqMeiemMQgIy2XoZOtlbI=";
    };

    propagatedBuildInputs = with python3Packages; [
      feedparser
      bibtexparser
      httpx
      whenever
    ];

    doCheck = false;
    pythonImportsCheck = [ "pyzotero" ];

    meta = with lib; {
      description = "Python wrapper for the Zotero API";
      homepage = "https://github.com/urschrei/pyzotero";
      license = licenses.blueOak100;
    };
  };
in
python3Packages.buildPythonApplication rec {
  pname = "zotero-mcp";
  version = "0.2.2";
  pyproject = true;

  src = fetchFromGitHub {
    owner = "54yyyu";
    repo = "zotero-mcp";
    rev = "v${version}";
    hash = "sha256-GZkzABsUh6qua66K4URPq0InLgs6cqLgKEXm7wzT+s8=";
  };

  build-system = with python3Packages; [
    hatchling
  ];

  # Core dependencies
  dependencies = with python3Packages; [
    pyzotero
    mcp
    python-dotenv
    markitdown
    pydantic
    requests
    fastmcp
    unidecode
    # PDF support
    pymupdf
    ebooklib
    pdfplumber
  ];

  # Optional: semantic search dependencies
  optional-dependencies = with python3Packages; {
    semantic = [
      chromadb
      sentence-transformers
      openai
      google-genai
      tiktoken
    ];
    pdf = [
      pymupdf
      ebooklib
    ];
  };

  pythonImportsCheck = [ "zotero_mcp" ];

  meta = with lib; {
    description = "MCP server connecting Zotero with AI assistants for research library access";
    homepage = "https://github.com/54yyyu/zotero-mcp";
    license = licenses.mit;
    mainProgram = "zotero-mcp";
    platforms = platforms.all;
  };
}