VoiceOS beginner setup guide: Control your PC with voice

I spent two days trying out VoiceOS, that so-called 'voice operating system' on ProductHunt. Simply put, it turns what you say directly into computer operations, so you don't have to keep switching between email clients, calendars, and browsers anymore. The official site gave some comparison numbers: traditional typing speed is 1x, regular speech-to-text is 4x, and VoiceOS direct operation is 10x. Take those numbers with a grain of salt, but I think the direction is real.