diff --git a/.git-hooks/cp.sh b/.git-hooks/cp.sh
new file mode 100755
index 0000000..925eeea
--- /dev/null
+++ b/.git-hooks/cp.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+cp *[^cp.sh] ../.git/hooks
diff --git a/.git-hooks/pre-commit b/.git-hooks/pre-commit
new file mode 100755
index 0000000..09e935f
--- /dev/null
+++ b/.git-hooks/pre-commit
@@ -0,0 +1,4 @@
+#!/bin/sh
+
+# fmt
+deno fmt .