diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 00000000..ba095cbc
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,6 @@
+root = true
+
+[*]
+indent_style = space
+indent_size = 4
+charset = utf-8
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000..f59d856c
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,3 @@
+# Contributing
+
+Please install `pre-commit` before pushing.
\ No newline at end of file
diff --git a/SECURITY.md b/SECURITY.md
new file mode 100644
index 00000000..a0ea7363
--- /dev/null
+++ b/SECURITY.md
@@ -0,0 +1,3 @@
+# Security Policy
+
+Report vulnerabilities via email.
\ No newline at end of file
diff --git a/pyproject.toml b/pyproject.toml
new file mode 100644
index 00000000..928e5b74
--- /dev/null
+++ b/pyproject.toml
@@ -0,0 +1,17 @@
+[project]
+name = "tmp7t2ldez9"
+version = "0.1.0"
+description = ""
+requires-python = ">=3.9"
+dependencies = []
+
+[tool.ruff]
+line-length = 88
+target-version = "py39"
+select = ["E", "F", "I", "UP", "B", "SIM", "PTH"]
+
+[tool.ruff.isort]
+known-first-party = ["tmp7t2ldez9"]
+
+[tool.black]
+line-length = 88