diff --git a/.editorconfig b/.editorconfig
new file mode 100644
index 000000000..3e07d14b0
--- /dev/null
+++ b/.editorconfig
@@ -0,0 +1,11 @@
+root=true
+
+[*]
+charset=utf-8
+end_of_line=lf
+indent_style=space
+insert_final_newline=true
+
+[{*.bash,*.sh,*.zsh}]
+indent_size=2
+tab_width=2
diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
new file mode 100644
index 000000000..834af91d8
--- /dev/null
+++ b/.github/CODEOWNERS
@@ -0,0 +1,2 @@
+* @DroidKaigi/ConferenceApp2023Reviewer
+/app-ios/ @DroidKaigi/appios
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 62cd51d04..cc5805eb1 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -7,7 +7,12 @@
## Links
-
-## Screenshot
+## Screenshot (Optional if screenshot test is present or unrelated to UI)
Before | After
:--: | :--:
- |
\ No newline at end of file
+ |
+
+## Movie (Optional)
+Before | After
+:--: | :--:
+