diff --git a/defaults/main.yml b/defaults/main.yml
index def9d97..8058558 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -1,3 +1,5 @@
-live_build_serial: no 
-live_build_bootappend_live: boot=live components quiet {{ live_build_serial | ternary('console=ttyS0','') }} hostname={{ live_build_hostname }}
-live_build_hostname: "{{ inventory_hostname }}"
\ No newline at end of file
+debian_mirror: http://deb.debian.org/debian
+
+debian_live_build_serial_console: false
+debian_live_build_bootappend_live: boot=live components quiet {{ debian_live_build_serial_console | ternary('console=ttyS0','') }} hostname={{ debian_live_build_hostname }}
+debian_live_build_hostname: "{{ inventory_hostname }}"
diff --git a/tasks/main.yml b/tasks/main.yml
index 4a069cb..b95c910 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -12,91 +12,91 @@
     - memtest86
     - memtest86+
 
-- name: live build directory
+- name: debian live-build directory
   file:
-    path: "{{ live_build_directory }}"
+    path: "{{ debian_live_build_directory }}"
     state: directory
 
 - name: remove config directory
   file:
-    path: "{{ live_build_directory }}/config"
+    path: "{{ debian_live_build_directory }}/config"
     state: absent
 
 - name: lb clean
   command:
     lb clean
   args:
-    chdir: "{{ live_build_directory }}"
+    chdir: "{{ debian_live_build_directory }}"
+  when: live_build_clean is defined and live_build_clean
 
 - name: lb config
   command:
     lb config
     {{ lookup('template','lb-config-args.j2') }}
   args:
-    chdir: "{{ live_build_directory }}"
+    chdir: "{{ debian_live_build_directory }}"
 
 - name: ssh root access
   include_role:
     name: ssh_root_access
   vars:
-    root_target_directory: "{{ live_build_directory }}/config/includes.chroot/"
+    root_target_directory: "{{ debian_live_build_directory }}/config/includes.chroot/"
 
 - name: keyboard configuration
   include_role:
     name: keyboard_configuration
   vars:
-    root_target_directory: "{{ live_build_directory }}/config/includes.chroot/"
-  when: live_build_serial == false
+    root_target_directory: "{{ debian_live_build_directory }}/config/includes.chroot/"
+  when: debian_live_build_serial_console == false
 
 - name: include common packages
   template:
     src: common.list.chroot.j2
-    dest: "{{ live_build_directory }}/config/package-lists/common.list.chroot"
+    dest: "{{ debian_live_build_directory }}/config/package-lists/common.list.chroot"
 
 - name: include console-setup package
   copy:
     content: console-setup
-    dest: "{{ live_build_directory }}/config/package-lists/console-setup.list.chroot"
-  when: live_build_serial == false
+    dest: "{{ debian_live_build_directory }}/config/package-lists/console-setup.list.chroot"
+  when: debian_live_build_serial_console == false
 
 - name: include custom packages
   template:
     src: custom.list.chroot.j2
-    dest: "{{ live_build_directory }}/config/package-lists/custom.list.chroot"
-  when: live_build_custom_packages is defined
+    dest: "{{ debian_live_build_directory }}/config/package-lists/custom.list.chroot"
+  when: debian_live_build_custom_packages is defined
 
 - name: isolinx directory
   file:
-    path: "{{ live_build_directory }}/config/includes.binary/isolinux"
+    path: "{{ debian_live_build_directory }}/config/includes.binary/isolinux"
     state: directory
 
 - name: isolinux.cfg
   template:
     src: isolinux.cfg.j2
-    dest: "{{ live_build_directory }}/config/includes.binary/isolinux/isolinux.cfg"
+    dest: "{{ debian_live_build_directory }}/config/includes.binary/isolinux/isolinux.cfg"
 
 - name: fix debian jessie generate ssh host ed25519 keys directory
   file:
-    path: "{{ live_build_directory }}/config/includes.chroot/lib/live/config"
+    path: "{{ debian_live_build_directory }}/config/includes.chroot/lib/live/config"
     state: directory
   when: ansible_distribution == 'Debian' and ansible_distribution_release == 'jessie'
 
 - name: fix debian jessie generate ssh host ed25519 keys
   copy:
     src: 1160-openssh-server
-    dest: "{{ live_build_directory }}/config/includes.chroot/lib/live/config/1160-openssh-server"
+    dest: "{{ debian_live_build_directory }}/config/includes.chroot/lib/live/config/1160-openssh-server"
     mode: 755
   when: ansible_distribution == 'Debian' and ansible_distribution_release == 'jessie'
-      
+
 - name: lb build
   command:
     lb build
   args:
-    chdir: "{{ live_build_directory }}"
+    chdir: "{{ debian_live_build_directory }}"
   register: _lb_build
 
 - name: save build log
   copy:
     content: "{{ _lb_build.stdout }}"
-    dest: "{{ live_build_directory }}/build.log"
-
+    dest: "{{ debian_live_build_directory }}/build.log"
diff --git a/templates/common.list.chroot.j2 b/templates/common.list.chroot.j2
index 00f3b68..7f87c6a 100644
--- a/templates/common.list.chroot.j2
+++ b/templates/common.list.chroot.j2
@@ -1,3 +1,3 @@
-{% for package in live_build_common_packages %}
-{{package}}
+{% for package in debian_live_build_common_packages %}
+{{ package }}
 {% endfor %}
diff --git a/templates/custom.list.chroot.j2 b/templates/custom.list.chroot.j2
index da979d9..439b8cb 100644
--- a/templates/custom.list.chroot.j2
+++ b/templates/custom.list.chroot.j2
@@ -1,3 +1,3 @@
-{% for package in live_build_custom_packages %}
+{% for package in debian_live_build_custom_packages %}
 {{package}}
 {% endfor %}
diff --git a/templates/isolinux.cfg.j2 b/templates/isolinux.cfg.j2
index 7b8b546..6a41761 100644
--- a/templates/isolinux.cfg.j2
+++ b/templates/isolinux.cfg.j2
@@ -1,5 +1,5 @@
 include live.cfg
 default live-amd64
-{% if live_build_serial == true %}
+{% if debian_live_build_serial_console == true %}
 serial 0
 {% endif %}
diff --git a/templates/lb-config-args.j2 b/templates/lb-config-args.j2
index 606c597..12ec36c 100644
--- a/templates/lb-config-args.j2
+++ b/templates/lb-config-args.j2
@@ -1,11 +1,11 @@
-{% if live_build_distribution is defined %}
---distribution "{{ live_build_distribution }}"
+{% if debian_live_build_distribution is defined %}
+--distribution "{{ debian_live_build_distribution }}"
 {% endif %}
-{% if live_build_archive_areas is defined %}
---archive-areas "{{ live_build_archive_areas | join(' ') }}"
+{% if debian_live_build_archive_areas is defined %}
+--archive-areas "{{ debian_live_build_archive_areas | join(' ') }}"
 {% endif %}
 --mirror-bootstrap {{ debian_mirror }}
 --mirror-binary {{ debian_mirror }}
-{% if live_build_bootappend_live is defined %}
---bootappend-live "{{ live_build_bootappend_live }}"
+{% if debian_live_build_bootappend_live is defined %}
+--bootappend-live "{{ debian_live_build_bootappend_live }}"
 {% endif %}
diff --git a/vars/main.yml b/vars/main.yml
index 70a6dc2..6ba9744 100644
--- a/vars/main.yml
+++ b/vars/main.yml
@@ -1,3 +1,38 @@
-live_build_common_packages:
-  - task-ssh-server
+debian_live_build_common_packages:
+  - openssh-server
   - python
+
+  # hardware utils
+  - pciutils
+  - usbutils
+  - acpi
+
+  # admin tools
+  - tmux
+  - rsync
+  - lsof
+  - vim
+  - pv
+  - less
+
+  # network tools
+  - iputils-ping
+  - whois
+  - nmap
+  - tcpdump
+
+  - dnsutils
+  # admin tools
+  - tmux
+  - rsync
+  - lsof
+  - vim
+  - pv
+  - less
+
+  # network tools
+  - iputils-ping
+  - whois
+  - nmap
+  - tcpdump
+  - dnsutils