[CODE, TIDY] make use of RTC user memory + restructure code

.editorconfig

@@ -0,0 +1,32 @@
+# EditorConfig is awesome: http://EditorConfig.org
+
+# top-most EditorConfig file
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+indent_size = 2
+end_of_line = lf
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.c, *.cpp, *.h]
+trim_trailing_whitespace = true
+
+[*.py]
+indent_style = space
+indent_size = 4
+
+[*.md]
+trim_trailing_whitespace = false
+
+[*.yml]
+indent_size = 2
+
+[*.json]
+indent_size = 2
+
+[Makefile, *.mk]
+indent_size = 4
+indent_style = tab