option('systemd-service', type: 'boolean', value: true, description: 'Install systemd user service unit.')
option('scripting', type: 'boolean', value: true, description: 'Enable notification scripting.')
option('pulse-audio', type: 'boolean', value: true, description: 'Provide PulseAudio Widget.')
option('man-pages', type: 'boolean', value: true, description: 'Install all man pages.')
option('zsh-completions', type: 'boolean', value: true, description: 'Install zsh shell completions.')
option('bash-completions', type: 'boolean', value: true, description: 'Install bash shell completions.')
option('fish-completions', type: 'boolean', value: true, description: 'Install fish shell completions.')