Description

When running install.sh on Garuda Linux (Arch-based), the installer detects the OS correctly but still uses apt-get, which causes the installation to fail.

Steps to Reproduce

1. Clone the repository
2. Run chmod +x install.sh
3. Execute ./install.sh on Garuda Linux

Expected Behavior

The installer should use pacman for Arch-based distributions like Garuda Linux.

Actual Behavior

The script tries to run apt-get, resulting in the following error:

sudo: apt-get: command not found

Environment

• OS: Garuda Linux (Arch-based)
• Shell: bash
• Python: system default

Additional Context

Garuda Linux is Arch-based and uses pacman instead of apt-get.
I am willing to submit a Pull Request to fix this issue.