{
  lib,
  stdenv,
  fetchFromGitHub,
  callPackage,
  symlinkJoin,
  pkg-config,
  ninja,
  git,
  which,
  time,
  readline,
  ncurses,
  zlib,
  libffi,
}:

stdenv.mkDerivation (finalAttrs: {
  pname = "oils-for-unix";
  version = "0.37.0";

  src = fetchFromGitHub {
    owner = "oils-for-unix";
    repo = "oils";
    rev = "release/${finalAttrs.version}";
    hash = "sha256-d2i2P8ZiGb+FYzZIzs0pY2gIRQGGuenLbxrGhafVxVc=";
  };

  nativeBuildInputs = [
    pkg-config
    ninja
    git
    which
    time
  ];

  buildInputs = [
    readline
    ncurses
    zlib
    libffi
  ];

  postPatch = ''
    patchShebangs .

    substituteInPlace build/dynamic-deps.sh \
      --replace-quiet '/usr/bin/env' "$(command -v env)"

    substituteInPlace pyext/posixmodule.c \
      --replace-quiet '_PyVerify_fd(fd)' '1'

    substituteInPlace doctools/cmark.py \
      --replace-quiet "raise AssertionError('bin/cmark not found')" \
        "cmark_path = '${finalAttrs.passthru.wedge.cmark}/bin/cmark'"
  '';

  configureFlags = [
    "--datarootdir=${placeholder "out"}"
    "--with-readline"
    "--readline=${finalAttrs.passthru.wedge.readline-all}"
  ];

  buildPhase = ''
    runHook preBuild

    build/py.sh configure-for-dev
    build/stamp.sh write-git-commit
    build/py.sh py-source
    build/py.sh py-extensions
    build/doc.sh all-ref
    ./NINJA-config.sh
    ninja _bin/cxx-opt/oils-for-unix

    runHook postBuild
  '';

  installPhase = ''
    runHook preInstall

    mkdir -p $out/bin
    install -m755 _bin/cxx-opt/oils-for-unix $out/bin/oils-for-unix
    ln -s oils-for-unix $out/bin/osh
    ln -s oils-for-unix $out/bin/ysh

    runHook postInstall
  '';

  env = {
    NIX_CFLAGS_COMPILE = lib.optionalString stdenv.cc.isClang "-Wno-error=incompatible-function-pointer-types";
    PYTHONPATH = "${finalAttrs.passthru.wedge.mypy}:${finalAttrs.passthru.wedge.py3-libs}/lib/python3.10/site-packages:.:vendor/";
    LD_LIBRARY_PATH = "${finalAttrs.passthru.wedge.python2}/lib:${finalAttrs.passthru.wedge.python3}/lib";
  };

  preBuild = ''
    export PATH="${
      lib.makeBinPath [
        finalAttrs.passthru.wedge.python2
        finalAttrs.passthru.wedge.python3
        finalAttrs.passthru.wedge.re2c
        finalAttrs.passthru.wedge.cmark
        finalAttrs.passthru.wedge.py3-libs
      ]
    }:$PATH"
  '';

  meta = {
    description = "Oils is our upgrade path from bash to a better language and runtime";
    homepage = "https://www.oilshell.org/";
    license = lib.licenses.asl20;
    platforms = lib.platforms.unix;
    mainProgram = "osh";
  };

  passthru = {
    wedge = callPackage ./wedge.nix { oilsSrc = finalAttrs.src; };

    withSrc = newSrc: finalAttrs.finalPackage.overrideAttrs { src = newSrc; };
  }
  // (
    let
      mkShell =
        shellName:
        symlinkJoin {
          name = "oils-for-unix-${shellName}-${finalAttrs.version}";
          paths = [ finalAttrs.finalPackage ];
          passthru.shellPath = "/bin/${shellName}";
          meta = finalAttrs.meta // {
            mainProgram = shellName;
          };
        };
    in
    {
      osh = mkShell "osh";
      ysh = mkShell "ysh";
    }
  );
})