diff --git a/backup.service b/backup.service
index 4184a74..bd0daca 100644
--- a/backup.service
+++ b/backup.service
@@ -3,7 +3,7 @@ Description=Docker backup service
 
 [Service]
 Type=simple
-ExecStart=/bin/bash -c '/home/michael/docker-backup.sh'
+ExecStart=/bin/bash -c '/usr/local/bin/docker-backup'
 
 [Install]
 WantedBy=default.target
diff --git a/docker-backup.sh b/docker-backup.sh
index c190453..669b7f2 100644
--- a/docker-backup.sh
+++ b/docker-backup.sh
@@ -7,7 +7,7 @@ backupdir="/backups"
 services=()
 readarray -d '' services < <(find "$stackdir" -maxdepth 1 -mindepth 1 -type d)
 
-# Add volumes here to backup.
+# Directories to backup.
 volumes=(
   "/var/lib/docker/volumes"
   "/opt"
@@ -42,13 +42,8 @@ function copyVolumes() {
   mkdir "$dir"
   for volume in "${volumes[@]}"; do
     # copy only directories.
-    #
     find "$volume" -maxdepth 1 -mindepth 1 -type d -print0 |
       xargs -0 -I {} cp -r --parents "$volume" "{}"
-
-    # for dir in $(find "$volume" -maxdepth 1 -mindepth 1 -type d); do
-    #   cp -r --parents "$volume" "$dir"
-    # done
   done
 }
 
@@ -60,6 +55,13 @@ function backup() {
   rm -rf "$1" "/$today.tar.gz"
 }
 
+function cleanBackups() {
+  echo "Removing old backups..."
+  # Remove backups older than 7 days.
+  find "$backupdir" -maxdepth 1 -mindepth 1 -name "*.tar.gz" -mtime +7 -print0 |
+    xargs -0 -I {} rm -rf "{}"
+}
+
 function main() {
   # stop services.
   stopServices
@@ -79,6 +81,9 @@ function main() {
 
   # Restart services.
   startServices
+
+  # Remove backups older than 7 days.
+  cleanBackups
 }
 
 main "$@"
diff --git a/install.sh b/install.sh
new file mode 100644
index 0000000..8aa8b27
--- /dev/null
+++ b/install.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+baseurl="https://git.housh.dev/homelab/backup/raw/branch/main"
+systemdir="/etc/systemd/system"
+bindir="/usr/local/bin"
+
+# Remove backup service file if it exists and install the service file.
+[ -f "$systemdir/backup.service" ] &&
+  systemctl stop backup.service &&
+  rm -f "$systemdir/backup.service"
+wget "$baseurl/backup.service" -O "$systemdir/backup.service"
+
+# Only download the timer file if it doesn't exist.
+[ ! -f "$systemdir/backup.timer" ] &&
+  wget "$baseurl/backup.timer" -O "$systemdir/backup.timer"
+
+# Remove the backup script file if it exists and install the backup script.
+[ -f "$bindir/docker-backup" ] && rm -f "$bindir/docker-backup"
+wget "$baseurl/docker-backup.sh" -O "$bindir/docker-backup"
+
+# Remove the restore script file if it exists and install the restore script.
+[ -f "$bindir/docker-restore" ] && rm -f "$bindir/docker-restore"
+wget "$baseurl/docker-restore.sh" -O "$bindir/docker-restore"
+
+# Start services
+systemctl daemon-reload
+systemctl start backup.timer
+systemctl start backup.service