diff --git a/.github/workflows/test_script.yml b/.github/workflows/test_script.yml
index b412ad1..0a2a410 100755
--- a/.github/workflows/test_script.yml
+++ b/.github/workflows/test_script.yml
@@ -32,11 +32,20 @@ jobs:
             /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/\
                           Homebrew/install/HEAD/install.sh)"
           fi
-          brew install tmux
+          brew install tmux fd fzf
 
       - name: Install tmux on Ubuntu
         if: startsWith(matrix.os, 'ubuntu')
-        run: sudo apt-get install tmux
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y tmux
+          sudo apt-get install -y fd-find
+          sudo apt-get install -y fzf
+
+      - name: Set up tmux environment
+        run: |
+          tmux new-session -d -s mysession
+          tmux new-window -t mysession:1 -n mywindow
 
       - name: Test aactivator.py
         run: |
diff --git a/setup_dev_env b/setup_dev_env
index c18b375..a72495c 100755
--- a/setup_dev_env
+++ b/setup_dev_env
@@ -36,6 +36,11 @@ if [ "$(uname)" == "Darwin" ]; then
         /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
         PACKAGE_MANAGER="brew"
     fi
+
+    # Enable Brew auto-update if the flag is set
+    if [ "$ENABLE_AUTO_UPDATE" == true ]; then
+        brew autoupdate --start --upgrade --cleanup
+    fi
 elif [ "$(uname)" == "Linux" ]; then
     # Check if on Linux and use the appropriate package manager
     if command_exists apt-get; then
@@ -138,11 +143,6 @@ tmux source ~/.tmux.conf
 # Inform the user and wait for input
 echo "Zsh, Tmux, Neovim, Go, and development tools configurations applied."
 
-# Enable Brew auto-update if the flag is set
-if [ "$ENABLE_AUTO_UPDATE" == true ]; then
-    brew autoupdate --start --upgrade --cleanup
-fi
-
 # Enable notifications if the flag is set
 if [ "$ENABLE_NOTIFICATION" == true ]; then
     echo "Press Enter to start Zsh and Tmux."