diff --git a/roles/tree/tasks/Darwin.yaml b/roles/tree/tasks/Darwin.yaml
new file mode 100644
index 0000000..37f9911
--- /dev/null
+++ b/roles/tree/tasks/Darwin.yaml
@@ -0,0 +1,5 @@
+---
+- name: install homebrew pacakge
+  homebrew:
+    name: tree
+    state: latest
diff --git a/roles/tree/tasks/Debian.yaml b/roles/tree/tasks/Debian.yaml
new file mode 100644
index 0000000..151b37d
--- /dev/null
+++ b/roles/tree/tasks/Debian.yaml
@@ -0,0 +1,6 @@
+---
+- name: install apt package
+  become: true
+  apt:
+    name: tree
+    state: latest
diff --git a/roles/tree/tasks/Windows.yaml b/roles/tree/tasks/Windows.yaml
new file mode 100644
index 0000000..b37721b
--- /dev/null
+++ b/roles/tree/tasks/Windows.yaml
@@ -0,0 +1,5 @@
+---
+- name: install choco package
+  win_chocolatey:
+    name: tree
+    state: latest
diff --git a/roles/tree/tasks/main.yaml b/roles/tree/tasks/main.yaml
new file mode 100644
index 0000000..6853678
--- /dev/null
+++ b/roles/tree/tasks/main.yaml
@@ -0,0 +1,2 @@
+---
+- include_tasks: '{{ansible_os_family}}.yaml'
diff --git a/unix.yaml b/unix.yaml
index dea2c8e..444acf0 100644
--- a/unix.yaml
+++ b/unix.yaml
@@ -4,8 +4,11 @@
   roles:
     - role: zsh
     - role: tmux
-    - role: git
     - role: neovim
+
     - role: ag
+    - role: git
+    - role: tree
+
     - role: nodejs
     - role: python
diff --git a/windows.yaml b/windows.yaml
index 3672dab..46140ae 100644
--- a/windows.yaml
+++ b/windows.yaml
@@ -13,10 +13,14 @@
 
   roles:
     - role: powershell
-    - role: git
     - role: neovim
+
     - role: ag
+    - role: git
+    - role: tree
+
     - role: nodejs
     - role: python
-    - role: autohotkey
+
     - role: 1password
+    - role: autohotkey