diff --git a/python/cucim/pyproject_.toml b/python/cucim/pyproject_.toml
deleted file mode 100644
index c5351f058..000000000
--- a/python/cucim/pyproject_.toml
+++ /dev/null
@@ -1,129 +0,0 @@
-# Copyright (c) 2023, NVIDIA CORPORATION. All rights reserved.
-# See file LICENSE for terms.
-
-[tool.isort]
-profile = "black"
-force_single_line = false
-line_length = 80
-forced_separate = "test_cucim"
-force_grid_wrap = 0
-multi_line_output = 3
-order_by_type = true
-combine_as_imports = true
-include_trailing_comma = true
-known_first_party = [
-    "cucim",
-]
-default_section = "THIRDPARTY"
-sections = [
-    "FUTURE",
-    "STDLIB",
-    "THIRDPARTY",
-    "FIRSTPARTY",
-    "LOCALFOLDER",
-]
-skip = [
-    "3rdparty",
-    "thirdparty",
-    ".eggs",
-    ".git",
-    ".hg",
-    ".mypy_cache",
-    ".tox",
-    ".venv",
-    "ci",
-    "cpp",
-    "_build",
-    "build",
-    "build-debug",
-    "build-release",
-    "_deps",
-    "dist",
-]
-
-[tool.pytest.ini_options]
-# If a pytest section is found in one of the possible config files
-# (pytest.ini, tox.ini or setup.cfg), then pytest will not look for any others,
-# so if you add a pytest config section elsewhere,
-# you will need to delete this section from setup.cfg.
-norecursedirs = "migrations"
-python_files = [
-    "test_*.py",
-    "*_test.py",
-    "tests.py",
-]
-addopts = [
-    "-ra",
-    "--strict-markers",
-    # --doctest-modules",
-    # --doctest-glob=\*.rst",
-    "--tb=short",
-    "--ignore-glob=build*",
-]
-testpaths = [
-    "src",
-    "tests",
-]
-
-[tool.ruff]
-select = ["E", "F", "W"]
-fixable = ["ALL"]
-exclude = [
-    # TODO: Remove this in a follow-up where we fix __all__.
-    ".tox",
-    ".eggs",
-    "ci/templates",
-    "build",
-    "dist",
-    ".git",
-    "__pycache__",
-    "doc/conf.py",
-    "doc/sphinxext",
-    "__init__.py",
-]
-line-length = 80
-
-[tool.ruff.per-file-ignores]
-# "src/cucim/skimage/util/tests/test_shape.py" = ["E201", "E202"]
-
-[tool.black]
-line-length = 80
-target-version = ["py39"]
-include = '\.py?$'
-exclude = '''
-/(
-    3rdparty |
-    thirdparty |
-    \.eggs |
-    \.git |
-    \.hg |
-    \.mypy_cache |
-    \.tox |
-    \.venv |
-    _build |
-    _deps |
-    cpp |
-    ci |
-    build |
-    build-debug |
-    build-release |
-    dist |
-    docker |
-    docs |
-)/
-'''
-
-[tool.setuptools]
-license-files = ["LICENSE"]
-
-[tool.codespell]
-# note: pre-commit passes explicit lists of files here, which this skip file list doesn't override -
-# this is only to allow you to run codespell interactively
-# e.g. via
-#   codespell --toml python/cucim/pyproject.toml . -i 3 -w
-skip = "build*,dist,.cache,html,_build,_deps,3rdparty,_static,generated,latex,.git,*.ipynb,test_data/input/LICENSE-3rdparty,jitify_testing"
-# ignore-regex = ""
-ignore-words-list = "ans,coo,boun,bui,gool,hart,lond,nd,paeth,unser,wronly"
-quiet-level = 3
-
-# to undo: ./test_data/input/LICENSE-3rdparty