Move to hatch based build

pyproject.toml

@@ -0,0 +1,48 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "lethe"
+description = "Lithography mask library"
+readme = "README.md"
+license = { file = "LICENSE.md" }
+authors = [
+    { name="Jan Petykiewicz", email="jan@mpxd.net" },
+    ]
+homepage = "https://mpxd.net/code/jan/lethe"
+repository = "https://mpxd.net/code/jan/lethe"
+keywords = [
+    "git",
+    "snapshot",
+    "commit",
+    "refs",
+    "backup",
+    "undo",
+    "log",
+    "lab notebook",
+    "traceability",
+    ]
+classifiers = [
+    "Programming Language :: Python :: 3",
+    "Development Status :: 4 - Beta",
+    "Environment :: Other Environment",
+    "Intended Audience :: Developers",
+    "Intended Audience :: Science/Research",
+    "License :: OSI Approved :: GNU General Public License v3 (GPLv3)",
+    "Topic :: Software Development :: Version Control :: Git",
+    "Topic :: Utilities",
+    ]
+requires-python = ">=3.8"
+dynamic = ["version"]
+dependencies = [
+    ]
+
+
+[tool.hatch.version]
+path = "lethe/__init__.py"
+
+[project.scripts]
+lethe = "lethe.endpoints:main"
+lethe-push = "lethe.endpoints:push"
+lethe-fetch = "lethe.endpoints:fetch"