{
  lib,
  python3Packages,
  fetchFromGitHub,
}:

python3Packages.buildPythonApplication rec {
  pname = "graphify";
  version = "0.9.77";
  pyproject = true;

  # Do not bump to the v1.0.0 tag: it is a stale branch 2126 commits behind
  # v0.9.77 (tagged 2026-04-05, pyproject still says graphifyy 0.1.10) and was
  # never published to PyPI, where 0.9.77 is the latest release. nix-update
  # picks v1.0.0 as the highest tag, so check PyPI before taking its result.
  src = fetchFromGitHub {
    owner = "Graphify-Labs";
    repo = "graphify";
    rev = "v${version}";
    hash = "sha256-CvJ6GoV1nSzFGfLQbzKSHDUNOuOPQZaYOf/idcSHkPw=";
  };

  build-system = with python3Packages; [
    setuptools
  ];

  # Only tree-sitter grammars available in nixpkgs are included.
  # Missing grammars will be downloaded by tree-sitter at runtime on demand.
  dependencies = with python3Packages; [
    networkx
    numpy
    rapidfuzz
    tree-sitter
    tree-sitter-python
    tree-sitter-javascript
    tree-sitter-rust
    tree-sitter-c-sharp
    tree-sitter-sql
  ];

  # Remove unavailable tree-sitter grammars from pyproject.toml.
  # Since 0.9.35 upstream pins versions ("tree-sitter-X>=v,<v"), and GNU sed
  # mishandles `"` inside bracket expressions, match the name followed by
  # either `>` (versioned) or `"` (bare) via alternation. This also avoids
  # prefix collisions (e.g. tree-sitter-c vs tree-sitter-c-sharp).
  postPatch = ''
    # relax the build-backend pin: nixpkgs' setuptools is older than 83, but
    # the PEP 639 license metadata graphify relies on needs only >=77.
    sed -i 's/setuptools>=83\.[0-9.]*/setuptools/' pyproject.toml
    sed -i \
      -e '/tree-sitter-typescript>\|tree-sitter-typescript"/d' \
      -e '/tree-sitter-go>\|tree-sitter-go"/d' \
      -e '/tree-sitter-java>\|tree-sitter-java"/d' \
      -e '/tree-sitter-groovy>\|tree-sitter-groovy"/d' \
      -e '/tree-sitter-c>\|tree-sitter-c"/d' \
      -e '/tree-sitter-cpp>\|tree-sitter-cpp"/d' \
      -e '/tree-sitter-ruby>\|tree-sitter-ruby"/d' \
      -e '/tree-sitter-kotlin>\|tree-sitter-kotlin"/d' \
      -e '/tree-sitter-scala>\|tree-sitter-scala"/d' \
      -e '/tree-sitter-php>\|tree-sitter-php"/d' \
      -e '/tree-sitter-swift>\|tree-sitter-swift"/d' \
      -e '/tree-sitter-lua>\|tree-sitter-lua"/d' \
      -e '/tree-sitter-zig>\|tree-sitter-zig"/d' \
      -e '/tree-sitter-powershell>\|tree-sitter-powershell"/d' \
      -e '/tree-sitter-elixir>\|tree-sitter-elixir"/d' \
      -e '/tree-sitter-objc>\|tree-sitter-objc"/d' \
      -e '/tree-sitter-julia>\|tree-sitter-julia"/d' \
      -e '/tree-sitter-verilog>\|tree-sitter-verilog"/d' \
      -e '/tree-sitter-fortran>\|tree-sitter-fortran"/d' \
      -e '/tree-sitter-bash>\|tree-sitter-bash"/d' \
      -e '/tree-sitter-json>\|tree-sitter-json"/d' \
      pyproject.toml
  '';

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

  passthru = {
    category = "AI Coding Agents";
    updateScript = [
      "nix-update"
      "--flake"
      ".#graphify"
    ];
  };

  meta = {
    description = "AI coding assistant skill - turn any folder of code, docs, papers, images, or videos into a queryable knowledge graph";
    homepage = "https://github.com/Graphify-Labs/graphify";
    changelog = "https://github.com/Graphify-Labs/graphify/releases/tag/v${version}";
    license = lib.licenses.asl20;
    mainProgram = "graphify";
    platforms = lib.platforms.all;
  };
}