diff --git a/lib/installers.sh b/lib/installers.sh
index 1a3c2dd..e20bf0f 100644
--- a/lib/installers.sh
+++ b/lib/installers.sh
@@ -2,6 +2,43 @@
 
 # Defines software installer functions.
 
+# Downloads remote file to local disk.
+# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (optional) - HTTP header.
+download_file() {
+  local url="$1"
+  local file_name="$2"
+  local http_header="$3"
+
+  printf "%s\n" "Downloading $1..."
+  clean_work_path
+  mkdir $MAC_OS_WORK_PATH
+  curl --header "$http_header" --location --retry 3 --retry-delay 5 --fail --silent --show-error "$url" >> "$MAC_OS_WORK_PATH/$file_name"
+}
+export -f download_file
+
+# Installs an application.
+# Parameters: $1 (required) - Application source path, $2 (required) - Application name.
+install_app() {
+  local install_root=$(get_install_root "$2")
+  local file_extension=$(get_extension "$2")
+
+  printf "Installing: $install_root/$2...\n"
+
+  case $file_extension in
+    '')
+      cp -a "$1/$2" "$install_root";;
+    'app')
+      cp -a "$1/$2" "$install_root";;
+    'prefPane')
+      sudo cp -pR "$1/$2" "$install_root";;
+    'qlgenerator')
+      sudo cp -pR "$1/$2" "$install_root" && qlmanage -r;;
+    *)
+      printf "ERROR: Unknown file extension: $file_extension.\n"
+  esac
+}
+export -f install_app
+
 # Installs an application via a DMG file.
 # Parameters: $1 (required) - URL, $2 (required) - Mount path, $3 (required) - Application name.
 install_dmg_app() {
@@ -41,6 +78,115 @@ install_dmg_pkg() {
 }
 export -f install_dmg_pkg
 
+# Installs a single file.
+# Parameters: $1 (required) - URL, $2 (required) - Install path.
+install_file() {
+  local file_url="$1"
+  local file_name=$(get_basename "$1")
+  local install_path="$2"
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$file_url" "$file_name"
+    mkdir -p $(dirname "$install_path")
+    mv "$MAC_OS_WORK_PATH/$file_name" "$install_path"
+    printf "Installed: $file_name.\n"
+    verify_path "$install_path"
+  fi
+}
+export -f install_file
+
+# Installs application code from a Git repository.
+# Parameters: $1 (required) - Repository URL, $2 (required) - Install path, $3 (optional) - Git clone options.
+install_git_app() {
+  local repository_url="$1"
+  local app_name=$(get_basename "$2")
+  local install_path="$2"
+  local options="--quiet"
+
+  if [[ -n "$3" ]]; then
+    local options="$options $3"
+  fi
+
+  if [[ ! -e "$install_path" ]]; then
+    printf "Installing: $install_path/$app_name...\n"
+    git clone $options "$repository_url" "$install_path"
+    printf "Installed: $app_name.\n"
+    verify_path "$install_path"
+  fi
+}
+export -f install_git_app
+
+# Installs settings from a Git repository.
+# Parameters: $1 (required) - Repository URL, $2 (required) - Repository version, $3 (required) - Project directory, $4 (required) - Script to run (including any arguments).
+install_git_project() {
+  local repo_url="$1"
+  local repo_version="$2"
+  local project_dir="$3"
+  local script="$4"
+
+  git clone "$repo_url"
+  (
+    cd "$project_dir"
+    git -c advice.detachedHead=false checkout "$repo_version"
+    eval "$script"
+  )
+  rm -rf "$project_dir"
+}
+export -f install_git_project
+
+# Installs a package.
+# Parameters: $1 (required) - Package source path, $2 (required) - Application name.
+install_pkg() {
+  local install_root=$(get_install_root "$2")
+
+  printf "Installing: $install_root/$2...\n"
+  local package=$(sudo find "$1" -maxdepth 1 -type f -name "*.pkg" -o -name "*.mpkg")
+  sudo installer -pkg "$package" -target /
+}
+export -f install_pkg
+
+# Installs program (single file).
+# Parameters: $1 (required) - URL, $2 (required) - Program name.
+install_program() {
+  local url="$1"
+  local program_name="$2"
+  local install_path=$(get_install_path "$program_name")
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$url" "$program_name"
+    mv "$MAC_OS_WORK_PATH/$program_name" "$install_path"
+    chmod 755 "$install_path"
+    printf "Installed: $program_name.\n"
+    verify_application "$program_name"
+  fi
+}
+export -f install_program
+
+# Installs an application via a tar file.
+# Parameters: $1 (required) - URL, $2 (required) - Application name, $3 (required) - Decompress options.
+install_tar_app() {
+  local url="$1"
+  local app_name="$2"
+  local options="$3"
+  local install_path=$(get_install_path "$app_name")
+  local work_file="download.tar"
+
+  if [[ ! -e "$install_path" ]]; then
+    download_file "$url" "$work_file"
+
+    (
+      printf "Preparing...\n"
+      cd "$MAC_OS_WORK_PATH"
+      tar "$options" "$work_file"
+    )
+
+    install_app "$MAC_OS_WORK_PATH" "$app_name"
+    printf "Installed: $app_name.\n"
+    verify_application "$app_name"
+  fi
+}
+export -f install_tar_app
+
 # Installs an application via a zip file.
 # Parameters: $1 (required) - URL, $2 (required) - Application name.
 install_zip_app() {
@@ -90,152 +236,6 @@ install_zip_pkg() {
 }
 export -f install_zip_pkg
 
-# Installs an application via a tar file.
-# Parameters: $1 (required) - URL, $2 (required) - Application name, $3 (required) - Decompress options.
-install_tar_app() {
-  local url="$1"
-  local app_name="$2"
-  local options="$3"
-  local install_path=$(get_install_path "$app_name")
-  local work_file="download.tar"
-
-  if [[ ! -e "$install_path" ]]; then
-    download_file "$url" "$work_file"
-
-    (
-      printf "Preparing...\n"
-      cd "$MAC_OS_WORK_PATH"
-      tar "$options" "$work_file"
-    )
-
-    install_app "$MAC_OS_WORK_PATH" "$app_name"
-    printf "Installed: $app_name.\n"
-    verify_application "$app_name"
-  fi
-}
-export -f install_tar_app
-
-# Installs program (single file).
-# Parameters: $1 (required) - URL, $2 (required) - Program name.
-install_program() {
-  local url="$1"
-  local program_name="$2"
-  local install_path=$(get_install_path "$program_name")
-
-  if [[ ! -e "$install_path" ]]; then
-    download_file "$url" "$program_name"
-    mv "$MAC_OS_WORK_PATH/$program_name" "$install_path"
-    chmod 755 "$install_path"
-    printf "Installed: $program_name.\n"
-    verify_application "$program_name"
-  fi
-}
-export -f install_program
-
-# Installs application code from a Git repository.
-# Parameters: $1 (required) - Repository URL, $2 (required) - Install path, $3 (optional) - Git clone options.
-install_git_app() {
-  local repository_url="$1"
-  local app_name=$(get_basename "$2")
-  local install_path="$2"
-  local options="--quiet"
-
-  if [[ -n "$3" ]]; then
-    local options="$options $3"
-  fi
-
-  if [[ ! -e "$install_path" ]]; then
-    printf "Installing: $install_path/$app_name...\n"
-    git clone $options "$repository_url" "$install_path"
-    printf "Installed: $app_name.\n"
-    verify_path "$install_path"
-  fi
-}
-export -f install_git_app
-
-# Installs settings from a Git repository.
-# Parameters: $1 (required) - Repository URL, $2 (required) - Repository version, $3 (required) - Project directory, $4 (required) - Script to run (including any arguments).
-install_git_project() {
-  local repo_url="$1"
-  local repo_version="$2"
-  local project_dir="$3"
-  local script="$4"
-
-  git clone "$repo_url"
-  (
-    cd "$project_dir"
-    git -c advice.detachedHead=false checkout "$repo_version"
-    eval "$script"
-  )
-  rm -rf "$project_dir"
-}
-export -f install_git_project
-
-# Installs a single file.
-# Parameters: $1 (required) - URL, $2 (required) - Install path.
-install_file() {
-  local file_url="$1"
-  local file_name=$(get_basename "$1")
-  local install_path="$2"
-
-  if [[ ! -e "$install_path" ]]; then
-    download_file "$file_url" "$file_name"
-    mkdir -p $(dirname "$install_path")
-    mv "$MAC_OS_WORK_PATH/$file_name" "$install_path"
-    printf "Installed: $file_name.\n"
-    verify_path "$install_path"
-  fi
-}
-export -f install_file
-
-# Downloads remote file to local disk.
-# Parameters: $1 (required) - URL, $2 (required) - File name, $3 (optional) - HTTP header.
-download_file() {
-  local url="$1"
-  local file_name="$2"
-  local http_header="$3"
-
-  printf "%s\n" "Downloading $1..."
-  clean_work_path
-  mkdir $MAC_OS_WORK_PATH
-  curl --header "$http_header" --location --retry 3 --retry-delay 5 --fail --silent --show-error "$url" >> "$MAC_OS_WORK_PATH/$file_name"
-}
-export -f download_file
-
-# Installs an application.
-# Parameters: $1 (required) - Application source path, $2 (required) - Application name.
-install_app() {
-  local install_root=$(get_install_root "$2")
-  local file_extension=$(get_extension "$2")
-
-  printf "Installing: $install_root/$2...\n"
-
-  case $file_extension in
-    '')
-      cp -a "$1/$2" "$install_root";;
-    'app')
-      cp -a "$1/$2" "$install_root";;
-    'prefPane')
-      sudo cp -pR "$1/$2" "$install_root";;
-    'qlgenerator')
-      sudo cp -pR "$1/$2" "$install_root" && qlmanage -r;;
-    *)
-      printf "ERROR: Unknown file extension: $file_extension.\n"
-  esac
-}
-export -f install_app
-
-# Installs a package.
-# Parameters: $1 (required) - Package source path, $2 (required) - Application name.
-install_pkg() {
-  local install_root=$(get_install_root "$2")
-
-  printf "Installing: $install_root/$2...\n"
-  local package=$(sudo find "$1" -maxdepth 1 -type f -name "*.pkg" -o -name "*.mpkg")
-  sudo installer -pkg "$package" -target /
-}
-export -f install_pkg
-
 # Mounts a disk image.
 # Parameters: $1 (required) - Image path.
 mount_image() {