Just post the youtube dot com link

like your own video?

Copy the link/url from YouTube and paste and #nostr note, remember to delete the "?etcetc.." from the end of the link so there will not be some tracking data for the ones who click 🤙

The alternative is download the video and repost it using nostr.build and then paste that link on the note so the video will be visible on any client without need to go on YT.