diff --git a/homebrew.sh b/homebrew.sh
index 9e2abfb..d195977 100755
--- a/homebrew.sh
+++ b/homebrew.sh
@@ -1,17 +1,25 @@
 #!/bin/bash
-if [ ! -d "$TUNASYNC_WORKING_DIR" ]; then
-	echo "Directory not exists, fail"
-	exit 1	
-fi
+function repo_init() {
+	UPSTREAM=$1
+	WORKING_DIR=$2
+	git clone --mirror $UPSTREAM $WORKING_DIR
+}
 
 function update_homebrew_git() {
 	repo_dir="$1"
 	cd $repo_dir
 	echo "==== SYNC $repo_dir START ===="
 	/usr/bin/timeout -s INT 3600 git remote -v update
+	git repack -a -b -d
 	echo "==== SYNC $repo_dir DONE ===="
 }
 
-update_homebrew_git "$TUNASYNC_WORKING_DIR/homebrew.git"
-update_homebrew_git "$TUNASYNC_WORKING_DIR/homebrew-python.git"
-update_homebrew_git "$TUNASYNC_WORKING_DIR/homebrew-science.git"
+brews=("brew" "homebrew-core" "homebrew-python" "homebrew-science")
+
+for brew in ${brews[@]}; do
+	if [[ ! -d "$TUNASYNC_WORKING_DIR/${brew}.git" ]]; then
+		echo "Initializing ${brew}.git"
+		repo_init "https://github.com/Homebrew/${brew}.git" "$TUNASYNC_WORKING_DIR/${brew}.git"
+	fi
+	update_homebrew_git "$TUNASYNC_WORKING_DIR/${brew}.git"
+done
diff --git a/linux.sh b/linux.sh
index dca5e3c..0985746 100755
--- a/linux.sh
+++ b/linux.sh
@@ -1,12 +1,21 @@
 #!/bin/bash
-if [ ! -d "$TUNASYNC_WORKING_DIR" ]; then
-	echo "Directory not exists, fail"
-	exit 1	
-fi
+UPSTREAM=${TUNASYNC_UPSTREAM_URL:-"git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git"}
+
+function repo_init() {
+	git clone --mirror $UPSTREAM $TUNASYNC_WORKING_DIR
+}
 
 function update_linux_git() {
 	cd $TUNASYNC_WORKING_DIR
+	echo "==== SYNC linux.git START ===="
 	/usr/bin/timeout -s INT 3600 git remote -v update
+	git repack -a -b -d
+	echo "==== SYNC linux.git DONE ===="
 }
 
+if [[ ! -d "$TUNASYNC_WORKING_DIR" ]]; then
+	echo "Initializing Linux.git mirror"
+	repo_init
+fi
+
 update_linux_git