setup-macos-shell

macOS + Homebrew setup for:

• fish
• ghostty
• 0xProto Nerd Font
• starship

What it does

• installs missing packages
• skips packages already installed
• sets fish as default shell
• adds starship to fish
• sets Ghostty font to 0xProto Nerd Font Mono
• makes backups before config edits
• supports dry run
• supports uninstall

Requirements

• macOS
• Homebrew
• sudo access
• chsh allowed for your user

File

• setup-macos-shell.sh

Usage

Make script executable:

chmod +x setup-macos-shell.sh

Install:

./setup-macos-shell.sh

Dry run:

./setup-macos-shell.sh --dry-run

Uninstall:

./setup-macos-shell.sh --uninstall

Uninstall dry run:

./setup-macos-shell.sh --uninstall --dry-run

Changes made

The script may create or edit:

• ~/.config/fish/config.fish
• ~/.config/ghostty/config.ghostty
• ~/.config/ghostty/config if it already exists
• /etc/shells

Backups

Before editing a file, the script saves:

<file>.bak.YYYYMMDD-HHMMSS

Notes

• uninstall switches shell back to /bin/zsh before removing fish
• uninstall removes only lines added by this script
• backups are kept
• script does not remove fish from /etc/shells