{
  lib,
  stdenvNoCC,
  ffmpeg,
  rtmpdump,
  atomicparsley,
  callPackage,
  fetchFromGitHub,
  fetchPypi,
  fetchpatch,
  makeWrapper,
  python3Packages,
}:
with python3Packages;
let
  mkPypi =
    pname: version: src: format:
    buildPythonPackage {
      inherit
        pname
        version
        src
        format
        ;
      doCheck = false;
      nativeBuildInputs = [ setuptools ];
    };

  mkPypi' =
    pname: version: hash: format:
    mkPypi pname version (fetchPypi {
      inherit pname version hash;
    }) format;

  mkPypi'' =
    pname: version: hash:
    mkPypi' pname version hash "setuptools";

  django-compat =
    mkPypi'' "django-compat" "1.0.15"
      "sha256-OsmjvtxWuTZdnrJBvFFX0MGTdpv5lfmnjcG8JOfCMxs=";
  django-appconf =
    mkPypi'' "django-appconf" "1.0.6"
      "sha256-z+h+qCfE7gS5pw+rkLhtcEywLymB+J2oQjyw+r+I778=";
  django-basicauth =
    mkPypi'' "django-basicauth" "0.5.3"
      "sha256-FenjZvaY9TxxseeU2v6gYPmQoqxVa65rczDdJTJKCRw=";
  django-sass-processor =
    mkPypi'' "django-sass-processor" "1.4"
      "sha256-sX850H06dRCuxCXBkZN+IwUC3ut8pr9pUKGt+LS3wcM=";
  django-background-tasks =
    mkPypi'' "django-background-tasks" "1.2.5"
      "sha256-4bGejUlaJ2ydZMWh/4tBEy910vWORb5xt4ZQ2tWa+d4=";

  django-compressor =
    let
      pname = "django-compressor";
      version = "4.4";
    in
    mkPypi pname version (fetchFromGitHub {
      owner = pname;
      repo = pname;
      rev = "refs/tags/${version}";
      hash = "sha256-c9uS5Z077b23Aj8jV30XNsshbEfrLRX3ozXasitQ6UQ=";
    }) "setuptools";

  app = buildPythonApplication rec {
    pname = "tubesync";
    version = "0.13.6";
    format = "other";

    src = fetchFromGitHub {
      name = "${pname}-src";
      owner = "meeb";
      repo = pname;
      rev = "v${version}";
      hash = "sha256-5l1HkMoTn99rNeeK5u+KoFejTFi2LfLyt8upq7xwrj0=";
    };

    patches = [
      ./gunicorn-env.patch
      ./state-dir-env.patch
      ./database-local-socket.patch
      ./ensure-fragments.patch
    ];

    propagatedBuildInputs =
      [
        yt-dlp
        requests
        httptools
        pillow
        gunicorn
        whitenoise
        psycopg2
        mysqlclient
        redis
        hiredis
        libsass
        six
      ]
      ++ [
        django_3
        django-compat
        django-appconf
        django-compressor
        django-basicauth
        django-sass-processor
        django-background-tasks
      ];

    buildPhase = ''
      mv "tubesync/tubesync/local_settings.py.container" "tubesync/tubesync/local_settings.py"
      rm "tubesync/tubesync/local_settings.py.example"
      rm "tubesync/tubesync/local_settings.py.container.orig"

      python3 tubesync/manage.py compilescss
      python3 tubesync/manage.py collectstatic --no-input
    '';

    installPhase = ''
      mkdir -p "$out"
      cp -r "tubesync" "$out/app"

      FFMPEG_VERSION=$(${ffmpegFix}/bin/ffmpeg -version | head -n 1 | awk '{ print $3 }')
      echo "ffmpeg_version = '$FFMPEG_VERSION'" >> "$out/app/common/third_party_versions.py"

      mv "$out/app/static" "$out/static"
      ln -s "/tmp/tubesync/static" "$out/app/static"
    '';
  };

  ffmpegFix = ffmpeg.overrideAttrs (
    finalAttrs: previousAttrs: {
      patches = previousAttrs.patches ++ [
        (fetchpatch {
          name = "avformat-webvttdec-skip-style-region.patch";
          url = "https://git.ffmpeg.org/gitweb/ffmpeg.git/patch/51d303e20cbb0874172f50b5172c515a973587d4";
          hash = "sha256-dxCjKZUz2H2QyktsprkzyfNp5aDG6X8deF4ZGdvhvfk=";
        })
      ];
    }
  );
in
stdenvNoCC.mkDerivation {
  pname = "${app.pname}-wrapped";
  inherit (app) version;

  nativeBuildInputs = [ makeWrapper ];
  unpackPhase = "true";
  installPhase =
    let
      prefix = ''--prefix PATH : "${
        lib.makeBinPath [
          ffmpegFix
          rtmpdump
          atomicparsley
        ]
      }"'';
    in
    ''
      mkdir -p "$out/bin"

      makeWrapper "${python}/bin/python3" "$out/bin/tubesync-worker" \
      --chdir ${app}/app --add-flags \
      "${app}/app/manage.py process_tasks" \
      ${prefix}

      makeWrapper "${gunicorn}/bin/gunicorn" "$out/bin/tubesync-gunicorn" \
      --chdir ${app}/app --add-flags \
      "-c ${app}/app/tubesync/gunicorn.py --capture-output tubesync.wsgi:application" \
      ${prefix}

      makeWrapper "${python}/bin/python3" "$out/bin/tubesync-migrate" \
      --chdir "${app}/app" --add-flags \
      "${app}/app/manage.py migrate"
    '';

  passthru = {
    inherit app;
    pythonPath = makePythonPath app.propagatedBuildInputs;
  };
}