diff --git a/mirror/main.yml b/mirror/main.yml
index c1909cb..49fb581 100644
--- a/mirror/main.yml
+++ b/mirror/main.yml
@@ -14,11 +14,11 @@
       when: hostname.stdout != "mirror"
 
     - name: run the system role first
-      include_role: 
+      include_role:
         name: "../roles/system"
 
     - name: run mirror system role second
-      include_role: 
+      include_role:
         name: "../roles/mirror"
 
     - name: run the rest of the roles
diff --git a/roles/mirror/tasks/main.yml b/roles/mirror/tasks/main.yml
index bb3503d..81fc636 100644
--- a/roles/mirror/tasks/main.yml
+++ b/roles/mirror/tasks/main.yml
@@ -1,3 +1,14 @@
+- name: install python3-pip
+  apt:
+    name: python3-pip
+    state: present
+    update_cache: yes
+
+- name: install weir (for zfssync)
+  pip:
+    name: weir
+    executable: pip3
+
 - name: copy cron job
   copy:
     src: "{{ role_path }}/templates/cron/csc-mirror"
@@ -21,7 +32,7 @@
     mode: preserve
 
 - name: copy files for /mirror/root
-  copy: 
+  copy:
     src: "{{ role_path }}/templates/root/root/"
     dest: /mirror/root
     owner: root
@@ -84,7 +95,7 @@
 - name: create first merlin.sock symlink
   # noqa deprecated-command-syntax
   # need chdir to create relative symlinks
-  command: 
+  command:
     cmd: "ln -s run/merlin.sock merlin.sock"
     chdir: "/mirror/merlin"
     creates: "/mirror/merlin/merlin.sock"
diff --git a/roles/system/tasks/main.yml b/roles/system/tasks/main.yml
index c6b0dc3..0671f79 100755
--- a/roles/system/tasks/main.yml
+++ b/roles/system/tasks/main.yml
@@ -76,9 +76,9 @@
 # create the var using
 # vars:
 #   disks:
-#     - /dev/vdc 
-#     - /dev/vdd 
-#     - /dev/vde 
+#     - /dev/vdc
+#     - /dev/vdd
+#     - /dev/vde
 #     - /dev/vdf
 #   disk_arg: "{{ disks | join(' ') }}"
 
@@ -87,9 +87,9 @@
 - name: disks to be used for zpool
   set_fact:
     disks:
-      - /dev/vdc 
-      - /dev/vdd 
-      - /dev/vde 
+      - /dev/vdc
+      - /dev/vdd
+      - /dev/vde
       - /dev/vdf
 
 - name: join disk pathes onto one line
@@ -104,9 +104,9 @@
 
 - name: create and mount zpool
   command: >
-    zpool create 
-    -m /mirror/root/.cscmirror 
-    cscmirror 
-    raidz2 
+    zpool create
+    -m /mirror/root/.cscmirror
+    cscmirror
+    raidz2
     {{ disk_arg }}
   when: zpool_exists.rc != 0