diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..27c7aab
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,17 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+indent_style = space
+
+[*.{rs,toml}]
+indent_size = 4
+
+[*.{py,dart,json,yaml,yml}]
+indent_size = 2
+
+[*.md]
+trim_trailing_whitespace = false
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..9c9a8b9
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,17 @@
+__pycache__/
+*.py[cod]
+.venv/
+venv/
+*.egg-info/
+dist/
+build/
+.pytest_cache/
+.ruff_cache/
+.mypy_cache/
+
+# Map artifacts and captures are data, never source.
+*.osm.pbf
+*.pmtiles
+*.sqlite
+*.log
+tiles/
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 0000000..7c6463e
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,16 @@
+[project]
+name = "tool-mock"
+version = "0.1.0"
+description = "Mocks and fixtures"
+requires-python = ">=3.10"
+dependencies = []
+
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/yukart_mock"]
+
+[tool.ruff]
+line-length = 100
diff --git a/src/yukart_mock/__init__.py b/src/yukart_mock/__init__.py
new file mode 100644
index 0000000..e69de29