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