diff --git a/.coveragerc b/.coveragerc
deleted file mode 100644
index 3aed56d..0000000
--- a/.coveragerc
+++ /dev/null
@@ -1,15 +0,0 @@
-[run]
-branch = True
-source = src/borg_import
-omit =
-    */borg_import/helpers/testsuite/*
-
-[report]
-exclude_lines =
-    pragma: no cover
-    def __repr__
-    raise AssertionError
-    raise NotImplementedError
-    if 0:
-    if __name__ == .__main__.:
-ignore_errors = True
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 5832787..a808d8b 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -13,30 +13,31 @@ jobs:
         python-version: "3.11"
     - name: Lint with flake8
       run: |
-        pip install flake8
+        pip install flake8-pyproject
         flake8
   test:
     needs: lint
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     strategy:
       fail-fast: false
       matrix:
         include:
-            - os: ubuntu-22.04
-              python-version: "3.8"
-              toxenv: py38
             - os: ubuntu-22.04
               python-version: "3.9"
               toxenv: py39
-            - os: ubuntu-22.04
+            - os: ubuntu-24.04
               python-version: "3.10"
               toxenv: py310
-            - os: ubuntu-22.04
+            - os: ubuntu-24.04
               python-version: "3.11"
               toxenv: py311
-            - os: ubuntu-22.04
+            - os: ubuntu-24.04
               python-version: "3.12"
               toxenv: py312
+            - os: ubuntu-24.04
+              python-version: "3.13"
+              toxenv: py313
+
     env:
       TOXENV: ${{ matrix.toxenv }}
     steps:
diff --git a/.gitignore b/.gitignore
index 69e6cc2..80905c8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,5 +9,6 @@ borg-env
 *.pyo
 .idea/
 .cache/
+.coverage
 src/borg_import/_version.py
 .eggs/
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..b689a8b
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,91 @@
+[build-system]
+requires = ["setuptools>=42", "wheel", "setuptools_scm[toml]>=6.2"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "borg-import"
+description = "Import backups made with misc. other software into borgbackup"
+readme = "README.rst"
+authors = [
+    {name = "The Borg Collective (see AUTHORS file)", email = "borgbackup@python.org"}
+]
+license = {text = "BSD"}
+classifiers = [
+    "Development Status :: 3 - Alpha",
+    "Environment :: Console",
+    "Intended Audience :: System Administrators",
+    "License :: OSI Approved :: BSD License",
+    "Operating System :: POSIX :: Linux",
+    "Programming Language :: Python",
+    "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3.9",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Topic :: System :: Archiving :: Backup",
+]
+requires-python = ">=3.9"
+dynamic = ["version"]
+
+[project.urls]
+Homepage = "https://borgimport.readthedocs.io/"
+
+[project.scripts]
+borg-import = "borg_import.main:main"
+
+[tool.setuptools]
+package-dir = {"" = "src"}
+include-package-data = true
+zip-safe = false
+
+[tool.setuptools.packages.find]
+where = ["src"]
+
+[tool.setuptools_scm]
+write_to = "src/borg_import/_version.py"
+
+[tool.pytest]
+python_files = "testsuite/*.py"
+testpaths = ["src"]
+
+[tool.pytest.ini_options]
+addopts = "-rs --cov=borg_import --cov-config=pyproject.toml"
+
+[tool.flake8]
+max-line-length = 120
+exclude = "build,dist,.git,.idea,.cache,.tox,docs/conf.py,.eggs"
+
+[tool.coverage.run]
+branch = true
+source = ["src/borg_import"]
+omit = ["*/borg_import/helpers/testsuite/*"]
+
+[tool.coverage.report]
+exclude_lines = [
+    "pragma: no cover",
+    "def __repr__",
+    "raise AssertionError",
+    "raise NotImplementedError",
+    "if 0:",
+    "if __name__ == .__main__.:"
+]
+ignore_errors = true
+
+[tool.tox]
+env_list = ["py39", "py310", "py311", "py312", "py313", "flake8"]
+
+[tool.tox.env_run_base]
+package = "editable-legacy"
+passenv = ["*"]
+
+[tool.tox.env_pkg_base]
+passenv = ["*"]
+
+[tool.tox.env.testenv]
+deps = ["-rrequirements.d/development.txt"]
+commands = [["pytest", "-rs", "--cov=borg_import", "--cov-config=pyproject.toml", "--pyargs={posargs:borg_import.helpers.testsuite}"]]
+
+[tool.tox.env.flake8]
+deps = ["flake8-pyproject"]
+commands = [["flake8"]]
diff --git a/setup.cfg b/setup.cfg
deleted file mode 100644
index f9507d6..0000000
--- a/setup.cfg
+++ /dev/null
@@ -1,6 +0,0 @@
-[tool:pytest]
-python_files = testsuite/*.py
-
-[flake8]
-max-line-length = 120
-exclude = build,dist,.git,.idea,.cache,.tox,docs/conf.py,.eggs
diff --git a/setup.py b/setup.py
deleted file mode 100644
index 6493b70..0000000
--- a/setup.py
+++ /dev/null
@@ -1,46 +0,0 @@
-# -*- encoding: utf-8 *-*
-from setuptools import setup, find_packages
-
-with open('README.rst', 'r') as fd:
-    long_description = fd.read()
-
-setup(
-    name='borg-import',
-    use_scm_version={
-        'write_to': 'src/borg_import/_version.py',
-    },
-    author='The Borg Collective (see AUTHORS file)',
-    author_email='borgbackup@python.org',
-    url='https://borgimport.readthedocs.io/',
-    description='Import backups made with misc. other software into borgbackup',
-    long_description=long_description,
-    license='BSD',
-    platforms=['Linux', ],
-    classifiers=[
-        'Development Status :: 2 - Pre-Alpha',
-        'Environment :: Console',
-        'Intended Audience :: System Administrators',
-        'License :: OSI Approved :: BSD License',
-        'Operating System :: POSIX :: Linux',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.8',
-        'Programming Language :: Python :: 3.9',
-        'Programming Language :: Python :: 3.10',
-        'Programming Language :: Python :: 3.11',
-        'Programming Language :: Python :: 3.12',
-        'Topic :: System :: Archiving :: Backup',
-    ],
-    packages=find_packages('src'),
-    package_dir={'': 'src'},
-    include_package_data=True,
-    zip_safe=False,
-    entry_points={
-        'console_scripts': [
-            'borg-import = borg_import.main:main',
-        ]
-    },
-    setup_requires=['setuptools_scm>=1.7', ],
-    install_requires=[],
-    python_requires=">=3.8",
-)
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index 50f8452..0000000
--- a/tox.ini
+++ /dev/null
@@ -1,18 +0,0 @@
-# tox configuration - if you change anything here, run this to verify:
-# fakeroot -u tox --recreate
-
-[tox]
-envlist = py{38,39,310,311,312},flake8
-
-[testenv]
-usedevelop = True
-deps =
-     -rrequirements.d/development.txt
-commands = py.test -rs --cov=borg_import --cov-config=.coveragerc --pyargs {posargs:borg_import.helpers.testsuite}
-# fakeroot -u needs some env vars:
-passenv = *
-
-[testenv:flake8]
-changedir =
-deps = flake8
-commands = flake8