Config jitsi for online seminar

hay guys
I want to setup a meeting which people can just view my room with my video
users just enter to room without voice and video
I want to have a Speech and they can watch me over jitsi
how can i configure my jitsi server for this event?

Perhaps the best option is to configure your environment to start audio and video muted by default (startAudioMuted:0 in config.js), only share the meeting URL with people that you would like to be able to participate in the meeting, and use jibri to live stream to youtube.