diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 0000000..9930560
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,24 @@
+root = true
+
+[*]
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true
+charset = utf-8
+indent_style = space
+indent_size = 2
+
+# backend
+[*.{java,kt,xml}]
+indent_size = 4
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
+
+# markdown
+[*.md]
+max_line_length = off
+trim_trailing_whitespace = false
+
+# misc
+[*.{yml,yaml,json}]
+indent_size = 2
diff --git a/backend/.editorconfig b/backend/.editorconfig
deleted file mode 100644
index 0e2a18d..0000000
--- a/backend/.editorconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-root = true
-
-[*]
-end_of_line = lf
-trim_trailing_whitespace = true
-insert_final_newline = false
-charset = utf-8
-indent_style = space
-indent_size = 4
-tab_width = 4
-
-[*.{yml,yaml,json,sql}]
-indent_size = 2
\ No newline at end of file
diff --git a/backend/.gitignore b/backend/.gitignore
index ffdb6ad..e0e208a 100644
--- a/backend/.gitignore
+++ b/backend/.gitignore
@@ -53,4 +53,4 @@ buildNumber.properties
 /.nb-gradle/
 
 ### VS Code ###
-.vscode/
\ No newline at end of file
+.vscode/
diff --git a/backend/src/test/resources/application-test.yml b/backend/src/test/resources/application-test.yml
index a6ba304..7c24f60 100644
--- a/backend/src/test/resources/application-test.yml
+++ b/backend/src/test/resources/application-test.yml
@@ -10,4 +10,4 @@ spring:
     show-sql: true
     properties:
       hibernate:
-        format-sql: TRUE
\ No newline at end of file
+        format-sql: TRUE
diff --git a/e2e/.editorconfig b/e2e/.editorconfig
deleted file mode 100644
index ff9b6fc..0000000
--- a/e2e/.editorconfig
+++ /dev/null
@@ -1,12 +0,0 @@
-root = true
-
-[*]
-charset = utf-8
-indent_style = space
-indent_size = 2
-insert_final_newline = true
-trim_trailing_whitespace = true
-
-[*.md]
-max_line_length = off
-trim_trailing_whitespace = false
diff --git a/frontend/.editorconfig b/frontend/.editorconfig
deleted file mode 100644
index 6e87a00..0000000
--- a/frontend/.editorconfig
+++ /dev/null
@@ -1,13 +0,0 @@
-# Editor configuration, see http://editorconfig.org
-root = true
-
-[*]
-charset = utf-8
-indent_style = space
-indent_size = 2
-insert_final_newline = true
-trim_trailing_whitespace = true
-
-[*.md]
-max_line_length = off
-trim_trailing_whitespace = false