diff --git a/overlays/xonsh.nix b/overlays/xonsh.nix
deleted file mode 100644
index d8dce91..0000000
--- a/overlays/xonsh.nix
+++ /dev/null
@@ -1,94 +0,0 @@
-{ lib
-, fetchFromGitHub
-, python3Packages
-, glibcLocales
-, coreutils
-, git
-}:
-
-python3Packages.buildPythonApplication rec {
-  pname = "xonsh";
-  version = "0.14.0";
-
-  # fetch from github because the pypi package ships incomplete tests
-  src = fetchFromGitHub {
-    owner = "xonsh";
-    repo = "xonsh";
-    rev = "refs/tags/${version}";
-    sha256 = "sha256-ZrPKKa/vl06QAjGr16ZzKF/DAByFHr6ze2WVOCa+wf8=";
-  };
-
-  LC_ALL = "en_US.UTF-8";
-
-  postPatch = ''
-    sed -ie "s|/bin/ls|${coreutils}/bin/ls|" tests/test_execer.py
-    sed -ie "s|SHELL=xonsh|SHELL=$out/bin/xonsh|" tests/test_integrations.py
-
-    sed -ie 's|/usr/bin/env|${coreutils}/bin/env|' tests/test_integrations.py
-    sed -ie 's|/usr/bin/env|${coreutils}/bin/env|' scripts/xon.sh
-    find scripts -name 'xonsh*' -exec sed -i -e "s|env -S|env|" {} \;
-    find -name "*.xsh" | xargs sed -ie 's|/usr/bin/env|${coreutils}/bin/env|'
-    patchShebangs .
-
-    substituteInPlace scripts/xon.sh \
-      --replace 'python' "${python3Packages.python}/bin/python"
-
-  '';
-
-  makeWrapperArgs = [
-    "--prefix PYTHONPATH : ${placeholder "out"}/lib/${python3Packages.python.libPrefix}/site-packages"
-  ];
-
-  postInstall = ''
-    wrapProgram $out/bin/xonsh \
-      $makeWrapperArgs
-  '';
-
-  disabledTests = [
-    # fails on sandbox
-    "test_colorize_file"
-    "test_loading_correctly"
-    "test_no_command_path_completion"
-    "test_bsd_man_page_completions"
-    "test_xonsh_activator"
-    # fails on non-interactive shells
-    "test_capture_always"
-    "test_casting"
-    "test_command_pipeline_capture"
-    "test_dirty_working_directory"
-    "test_man_completion"
-    "test_vc_get_branch"
-    "test_bash_and_is_alias_is_only_functional_alias"
-  ];
-
-  disabledTestPaths = [
-    # fails on sandbox
-    "tests/completers/test_command_completers.py"
-    "tests/test_ptk_highlight.py"
-    "tests/test_ptk_shell.py"
-    # fails on non-interactive shells
-    "tests/prompt/test_gitstatus.py"
-    "tests/completers/test_bash_completer.py"
-  ];
-
-  preCheck = ''
-    HOME=$TMPDIR
-  '';
-
-  nativeCheckInputs = [ glibcLocales git ] ++
-    (with python3Packages; [ pyte pytestCheckHook pytest-mock pytest-subprocess ]);
-
-  propagatedBuildInputs = with python3Packages; [ ply prompt-toolkit pygments ];
-
-  meta = with lib; {
-    description = "A Python-ish, BASHwards-compatible shell";
-    homepage = "https://xon.sh/";
-    changelog = "https://github.com/xonsh/xonsh/raw/${version}/CHANGELOG.rst";
-    license = licenses.bsd3;
-    maintainers = with maintainers; [ vrthra ];
-  };
-
-  passthru = {
-    shellPath = "/bin/xonsh";
-  };
-}