Use clang-format

.editorconfig

@@ -0,0 +1,37 @@
+root = true
+
+# Default for all files
+[*]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+# C / header files
+[*.{c,h}]
+indent_style = space
+indent_size = 2
+tab_width = 2
+max_line_length = 80
+
+# Assembly (if present; usually tab-sensitive)
+[*.S]
+indent_style = tab
+tab_width = 8
+trim_trailing_whitespace = false
+
+# Makefiles (MUST use tabs)
+[Makefile]
+indent_style = tab
+tab_width = 8
+trim_trailing_whitespace = false
+
+[*.mk]
+indent_style = tab
+tab_width = 8
+trim_trailing_whitespace = false
+
+# Markdown (avoid wrapping conflicts)
+[*.md]
+trim_trailing_whitespace = false
+max_line_length = off