diff --git a/.github/dependabot.yml b/.github/dependabot.yml
new file mode 100644
index 0000000..91ccc92
--- /dev/null
+++ b/.github/dependabot.yml
@@ -0,0 +1,12 @@
+version: 2
+updates:
+- package-ecosystem: "docker"
+  directory: "/"
+  schedule:
+    interval: "daily"
+  open-pull-requests-limit: 10
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "weekly"
+  open-pull-requests-limit: 10
diff --git a/README.md b/README.md
index e144ad2..31969dd 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,6 @@
-# Get more trackers, get more seeders,  get more peers transmission [![](https://images.microbadger.com/badges/version/andrewmhub/transmission-tracker-add.svg)](https://microbadger.com/images/andrewmhub/transmission-tracker-add) ![Docker Pulls](https://img.shields.io/docker/pulls/andrewmhub/transmission-tracker-add.svg) ![GitHub top language](https://img.shields.io/github/languages/top/AndrewMarchukov/tracker-add.svg)
+# Get more trackers, get more seeders,  get more peers transmission 
+[![Docker Image CI](https://github.com/AndrewMarchukov/tracker-add/actions/workflows/docker-image.yml/badge.svg?branch=docker)](https://github.com/AndrewMarchukov/tracker-add/actions/workflows/docker-image.yml) [![](https://images.microbadger.com/badges/version/andrewmhub/transmission-tracker-add.svg)](https://microbadger.com/images/andrewmhub/transmission-tracker-add) ![Docker Pulls](https://img.shields.io/docker/pulls/andrewmhub/transmission-tracker-add.svg) ![GitHub top language](https://img.shields.io/github/languages/top/AndrewMarchukov/tracker-add.svg) ![Docker Image Size (tag)](https://img.shields.io/docker/image-size/andrewmhub/transmission-tracker-add/latest)
+
 See no peers,seeds for some torrent(s)? Add more tracker(s) for Transmission
 
 This script automatically checks new torrents and adds trackers
diff --git a/manual-tracker-add.sh b/manual-tracker-add.sh
index 8f23f6c..922a663 100755
--- a/manual-tracker-add.sh
+++ b/manual-tracker-add.sh
@@ -1,24 +1,29 @@
 #!/bin/bash
-# Get transmission credentials
-auth=user:password
-host=localhost
+# Get transmission credentials, if set
+if [[ -n "$TRANSMISSION_USER" && -n "$TRANSMISSION_PASS" ]]; then
+    auth="${TRANSMISSION_USER:-user}:${TRANSMISSION_PASS:-password}"
+else
+    auth=
+fi
+host=${TRANSMISSION_HOST:-localhost}
+list_url=${TRACKER_URL:-https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt}
 
 add_trackers () {
     torrent_hash=$1
- for base_url in https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt ; do
+ for base_url in "${list_url}" ; do
     echo -e "\e[1m\e[5m"
     echo "URL for ${base_url}"
     echo -e "Adding trackers for \e[91m$torrent_name..."
     echo -en "\e[0m"
     echo -e "\e[2m\e[92m"
-for tracker in $(curl -# "${base_url}") ; do
+for tracker in $(curl --location -# "${base_url}") ; do
     echo -en "\e[0m"
     echo -ne "\e[93m*\e[0m ${tracker}..."
-if transmission-remote "$host" --auth="$auth" --torrent "${torrent_hash}" -td "${tracker}" | grep -q 'success'; then
-    echo -e '\e[91m failed.'
+if transmission-remote "$host" ${auth:+--auth="$auth"} --torrent "${torrent_hash}" -td "${tracker}" | grep -q 'success'; then
+    echo -e '\e[92m done.'
     echo -en "\e[0m"
 else
-    echo -e '\e[92m done.'
+    echo -e '\e[93m already added.'
     echo -en "\e[0m"
 fi
  done
@@ -26,10 +31,10 @@ done
 }
 
 # Get list of active torrents
-ids="$(transmission-remote "$host" --auth="$auth" --list | grep -vE 'Seeding|Stopped|Finished' | grep '^ ' | awk '{ print $1 }')"
+ids=${1:-"$(transmission-remote "$host" ${auth:+--auth="$auth"} --list | grep -vE 'Seeding|Stopped|Finished' | grep '^ ' | awk '{ print $1 }')"}
 
 for id in $ids ; do
-    hash="$(transmission-remote "$host" --auth="$auth"  --torrent "$id" --info | grep '^  Hash: ' | awk '{ print $2 }')"
-    torrent_name="$(transmission-remote "$host" --auth="$auth"  --torrent "$id" --info | grep '^  Name: ' |cut -c 9-)"
+    hash="$(transmission-remote "$host" ${auth:+--auth="$auth"}  --torrent "$id" --info | grep '^  Hash: ' | awk '{ print $2 }')"
+    torrent_name="$(transmission-remote "$host" ${auth:+--auth="$auth"}  --torrent "$id" --info | grep '^  Name: ' |cut -c 9-)"
     add_trackers "$hash"
 done
diff --git a/tracker-add-auto.sh b/tracker-add-auto.sh
index 78ea34d..2acd3d2 100644
--- a/tracker-add-auto.sh
+++ b/tracker-add-auto.sh
@@ -2,58 +2,59 @@
 # Get transmission credentials and ip or dns address
 auth=user:password
 host=localhost
+# set trackers list space separated
 trackers=https://raw.githubusercontent.com/ngosang/trackerslist/master/trackers_all.txt
 pt_trackers=()
 
-while true ; do
-sleep 25
-add_trackers () {
-    torrent_hash=$1
-    id=$2
-    trackerslist=/tmp/trackers.txt
-for base_url in $trackers ; do
-if [ ! -f $trackerslist ]; then
-curl -o "$trackerslist" "${base_url}"
-fi
-Local=$(wc -c < $trackerslist)
-Remote=$(curl -sI "${base_url}" | awk '/Content-Length/ {sub("\r",""); print $2}')
-if [ "$Local" != "$Remote" ]; then
-curl -o "$trackerslist" "${base_url}"
-fi
-    echo "URL for ${base_url}"
-    echo "Adding trackers for $torrent_name..."
-for tracker in $(cat $trackerslist) ; do
-    echo -n "${tracker}..."
-if transmission-remote "$host"  --auth="$auth" --torrent "${torrent_hash}" -td "${tracker}" | grep -q 'success'; then
-    echo ' failed.'
-else
-    echo ' done.'
-fi
-done
-done
-    sleep 3m
-    rm -f "/tmp/TTAA.$id.lock"
-}
-# Get list of active torrents
+while true; do
+    sleep 25
+    add_trackers() {
+        torrent_hash=$1
+        id=$2
+        trackerslist=/tmp/trackers.txt
+        for base_url in $trackers; do
+            if [ ! -f $trackerslist ]; then
+                curl -o "$trackerslist" "${base_url}"
+            fi
+            Local=$(wc -c <$trackerslist)
+            Remote=$(curl -sI "${base_url}" | awk '/Content-Length/ {sub("\r",""); print $2}')
+            if [ "$Local" != "$Remote" ]; then
+                curl -o "$trackerslist" "${base_url}"
+            fi
+            echo "URL for ${base_url}"
+            echo "Adding trackers for $torrent_name..."
+            for tracker in $(cat $trackerslist); do
+                echo -n "${tracker}..."
+                if transmission-remote "$host" --auth="$auth" --torrent "${torrent_hash}" -td "${tracker}" | grep -q 'success'; then
+                    echo ' done.'
+                else
+                    echo ' already added.'
+                fi
+            done
+        done
+        sleep 3m
+        rm -f "/tmp/TTAA.$id.lock"
+    }
+    # Get list of active torrents
     ids="$(transmission-remote "$host" --auth="$auth" --list | grep -vE 'Seeding|Stopped|Finished|[[:space:]]100%[[:space:]]' | grep '^ ' | awk '{ print $1 }')"
-for id in $ids ; do
-    add_date="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info| grep '^  Date added: ' |cut -c 21-)"
-    add_date_t="$(date -d "$add_date" "+%Y-%m-%d %H:%M")"
-    dater="$(date "+%Y-%m-%d %H:%M")"
-    dateo="$(date -d "1 minutes ago" "+%Y-%m-%d %H:%M")"
-    tracker0="$(transmission-remote "$host" --auth="$auth" -t "$id" -it|sed -n '2,2p'|awk '{print $3}'|awk -F : '{print $2}'|sed -e 's/\/\///')"
-    if [[ " ${pt_trackers[@]} " =~ " $tracker0 " ]]; then
-        echo "skip id=" $id $tracker0
-        continue
-    fi
+    for id in $ids; do
+        add_date="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Date added: ' | cut -c 21-)"
+        add_date_t="$(date -d "$add_date" "+%Y-%m-%d %H:%M")"
+        dater="$(date "+%Y-%m-%d %H:%M")"
+        dateo="$(date -d "1 minutes ago" "+%Y-%m-%d %H:%M")"
+        tracker0="$(transmission-remote "$host" --auth="$auth" -t "$id" -it | sed -n '2,2p' | awk '{print $3}' | awk -F : '{print $2}' | sed -e 's/\/\///')"
+        if [[ " ${pt_trackers[@]} " =~ " $tracker0 " ]]; then
+            echo "skip id=" "$id" "$tracker0"
+            continue
+        fi
 
-if [ ! -f "/tmp/TTAA.$id.lock" ]; then
-if [[ "( "$add_date_t" == "$dater" || "$add_date_t" == "$dateo" )" ]]; then
-    hash="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Hash: ' | awk '{ print $2 }')"
-    torrent_name="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Name: ' |cut -c 9-)"
-    add_trackers "$hash" "$id" &
-    touch "/tmp/TTAA.$id.lock"
-fi
-fi
-done
+        if [ ! -f "/tmp/TTAA.$id.lock" ]; then
+            if [[ "( "$add_date_t" == "$dater" || "$add_date_t" == "$dateo" )" ]]; then
+                hash="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Hash: ' | awk '{ print $2 }')"
+                torrent_name="$(transmission-remote "$host" --auth="$auth" --torrent "$id" --info | grep '^  Name: ' | cut -c 9-)"
+                add_trackers "$hash" "$id" &
+                touch "/tmp/TTAA.$id.lock"
+            fi
+        fi
+    done
 done