Switch from setup.cfg to pyproject.toml

pyproject.toml

@@ -1,7 +1,34 @@
 [build-system]
-requires = ["setuptools", "wheel", "setuptools_scm>=6.2"]
+requires = ["setuptools", "wheel", "setuptools_scm[toml]>=6.2"]
 build-backend = "setuptools.build_meta"
 
+[project]
+name = "xopen"
+authors = [
+    {name = "Marcel Martin", email = "[email protected]"},
+    {name = "Ruben Vorderman", email = "[email protected]"}
+]
+description = "Open compressed files transparently"
+readme = "README.rst"
+license = {text = "MIT"}
+classifiers = [
+    "Development Status :: 5 - Production/Stable",
+    "License :: OSI Approved :: MIT License",
+    "Programming Language :: Python :: 3"
+]
+requires-python = ">=3.8"
+dynamic = ["version"]
+dependencies = [
+    'isal>=1.4.1; platform.machine == "x86_64" or platform.machine == "AMD64" or platform.machine == "aarch64"'
+]
+
+[project.urls]
+homepage = "https://github.com/pycompression/xopen/"
+
+[project.optional-dependencies]
+dev = ["pytest"]
+zstd = ["zstandard<1"]
+
 [tool.setuptools_scm]
 write_to = "src/xopen/_version.py"