diff --git a/checker/detector-lib-general b/checker/detector-lib-general
index b1762cc..4d05cc6 100644
--- a/checker/detector-lib-general
+++ b/checker/detector-lib-general
@@ -1,5 +1,18 @@
 #!/bin/bash
 
+function detectorTryInit(){
+	# repo dir
+	dir=$1
+	history=$DET_DIR/detectorExecuted
+
+	if ! [ -f $history ] 
+	then
+		echo "Initializing detector cache"
+		# initialize seed
+		git --git-dir $dir log --all --format="%H" > $history
+	fi
+}
+
 function detectorCheckCommit(){
 	sha=$1
 	history=$DET_DIR/detectorExecuted
diff --git a/checker/run-checker b/checker/run-checker
index 8d1721f..bf4cc2b 100755
--- a/checker/run-checker
+++ b/checker/run-checker
@@ -68,6 +68,9 @@ then
 	exit 0
 fi
 
+# try to init cache
+detectorTryInit $repodir
+
 # first, solve commits
 # branches that were deleted or merged
 find $DET_BRANCHES -type f | sort | while read branchpath
@@ -158,5 +161,5 @@ do
 done
 
 # save hash to keep things clear
-#detectorSumPersist $repodir
+detectorSumPersist $repodir
 
diff --git a/dockerbin/wizzard b/dockerbin/wizzard
index 9f3469e..b2e8087 100755
--- a/dockerbin/wizzard
+++ b/dockerbin/wizzard
@@ -71,6 +71,21 @@ function createConfigFile(){
 	EOF
 }
 
+function createDetectorConfig(){
+	# $1 - file
+	local cfgFile=$1
+
+	mkdir -p $(dirname $cfgFile)
+
+	if [ $read_detector -eq 1 ] 
+	then
+		cat > $cfgFile <<-EOF
+		# this file is config for detector
+		# now, it is empty - to disable detector, just delete it!
+		EOF
+	fi
+}
+
 function generateSSHKey(){
 	# generates ssh key with $1 path and $2 description
 	local keyfile=$1/id_rsa
@@ -137,6 +152,19 @@ else
 	read_submodule_limit=N
 fi
 
+
+# determine CI?
+echo -n "Do you want to enable CI support? (detector) [Y/n]"
+read read_detector
+[ -n "$read_detector" ] || read_detector=Y
+if ! [[ "$read_detector" =~ ^[Yy]$ ]] 
+then
+	read_detector=0
+else
+	read_detector=1
+fi
+
+
 root=/data/$dir_prefix-$read_project_name
 # start generating config
 mkdir -p $root/config
@@ -166,6 +194,7 @@ then
 	reuseSSHKey $root/config/auth/ssh/id_rsa
 fi
 
+
 echo "First run - initialization of repos..."
 if ! env BASE=$root run-checker
 then 
@@ -177,6 +206,7 @@ then
 		rm -Rf $root
 	fi
 else
+	createDetectorConfig $root/config/detector.cfg
 	echo "Setup has finished!"
 	touch $root/.enabled
 fi