diff --git a/Makefile b/Makefile
index 6c196086..2b9e2342 100644
--- a/Makefile
+++ b/Makefile
@@ -1,9 +1,9 @@
 .PHONY: build
-build: build_image
+build: build-image
 
 
 .PHONY: pre-commit
-pre-commit: shellcheck format rust-lint regenerate-entities
+pre-commit: shellcheck rust-lint regenerate-entities update-index-js
 
 
 .PHONY: debug
@@ -17,16 +17,7 @@ debug:
 .PHONY: shellcheck
 shellcheck:
 	shellcheck --external-sources update.sh
-	shellcheck --external-sources neko/update/main.sh
-	shellcheck --external-sources neko/update/patch.sh
-	shellcheck --external-sources neko/update/container.sh
-	shellcheck --external-sources neko/update/native.sh
-	shellcheck --external-sources --exclude=SC2148 neko/update/utils
-
-
-.PHONY: format
-format:
-	pnpm run format
+	shellcheck --external-sources neko/update/*
 
 
 .PHONY: rust-lint
@@ -42,7 +33,16 @@ regenerate-entities:
 	  --database-url='postgres://firefish:password@localhost/firefish_db'
 
 
-.PHONY: build_image
+.PHONY: update-index-js
+update-index-js:
+	pnpm --filter='native-utils' run build:debug
+	[ -f packages/backend/native-utils/built/index.js ]
+	pnpm run format
+	rm neko/index.js
+	cp packages/backend/native-utils/built/index.js neko/index.js
+
+
+.PHONY: build-image
 build_image:
 	. neko/update/utils && \
 	buildah build \
diff --git a/neko/update/utils b/neko/update/utils
index ec0af597..315eef5a 100644
--- a/neko/update/utils
+++ b/neko/update/utils
@@ -1,3 +1,5 @@
+# shellcheck disable=SC2148
+
 color() {
   if [ -t 1 ]; then
     tput setaf "${1:-7}"