diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index f920108..a31bd63 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -6,9 +6,9 @@ name: Linux
 on:
   # Triggers the workflow on push or pull request events but only for the "main" branch
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -16,14 +16,14 @@ on:
 # A workflow run is made up of one or more jobs that can run sequentially or in parallel
 jobs:
   # This workflow contains a single job called "build"
-  build:
+  linux-test:
     # The type of runner that the job will run on
     runs-on: ubuntu-latest
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
-    - uses: actions/checkout@v3
+      - uses: actions/checkout@v3
 
-    # Runs  install script
-    - name: Run install_and_configure.sh
-      run: ${GITHUB_WORKSPACE}/install_and_configure.sh
+      # Runs  install script
+      - name: Run install_and_configure.sh
+        run: ${GITHUB_WORKSPACE}/install_and_configure.sh
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index e2701cd..64404d7 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -6,9 +6,9 @@ name: ShellCheck
 on:
   # Triggers the workflow on push or pull request events but only for the "main" branch
   push:
-    branches: [ "main" ]
+    branches: ["main"]
   pull_request:
-    branches: [ "main" ]
+    branches: ["main"]
 
   # Allows you to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -21,3 +21,5 @@ jobs:
       - uses: actions/checkout@v3
       - name: Run ShellCheck
         uses: ludeeus/action-shellcheck@master
+        with:
+          ignore_names: dotfiles/.zshrc
diff --git a/dotfiles/.tmux.conf b/dotfiles/.tmux.conf
index 2f65030..7a1d57c 100644
--- a/dotfiles/.tmux.conf
+++ b/dotfiles/.tmux.conf
@@ -2,6 +2,8 @@
 unbind C-b
 set -g prefix C-t
 
+set-option -g default-shell /bin/zsh
+
 ## Language Options
 # setw -g utf8 on
 # set -g status-utf8 on
diff --git a/install_and_configure.sh b/install_and_configure.sh
index 3f68425..228e2f5 100755
--- a/install_and_configure.sh
+++ b/install_and_configure.sh
@@ -31,9 +31,9 @@ show_status() {
 exit_on_error() {
     local exit_code=$1
     local error_message=$2
-    if [ $exit_code -ne 0 ]; then
+    if [ "$exit_code" -ne 0 ]; then
         echo -e "\033[1;31mError: $error_message\033[0m"
-        exit $exit_code
+        exit "$exit_code"
     fi
 }
 
@@ -55,15 +55,15 @@ echo -e
 check_and_install() {
     package_name=$1
     show_status "⚙️  Checking $package_name"
-    if command -v $package_name &> /dev/null; then
+    if command -v "$package_name" &> /dev/null; then
         installed_version=$($package_name --version)
         echo "✅ $package_name is already installed (Version: $installed_version)"
     else
         show_status "🔧 Installing $package_name"
         if [[ "$package_manager" == "brew" ]]; then
-            brew install $package_name
+            brew install "$package_name"
         else
-            sudo $package_manager install -y $package_name
+            sudo $package_manager install -y "$package_name"
         fi
         exit_on_error $? "Failed to install $package_name."
         installed_version=$($package_name --version)