NOTE: As of June 2026, Plexamp headless is no longer supported, recommend switching to its replacement Caldera headless
- installs Plexamp version 4.13.2 and prepares systemd service (to auto-start Plexamp at power up)
- installs node 20 using nvm for version management
- NEW option to setup --user service (for use with pipewire, a desktop, etc)
- NEW option to uninstall