Five minutes or less, in English. Loom, YouTube, Vimeo, or Google Drive (unlisted is fine), and the link must point at the video itself, not a folder. Make sure it is viewable by anyone. We want two things in it: your face on camera introducing yourself, and a screen recording walking through the best growth motion you have run, the numbers it produced, and the hardest problem you solved getting there. Casual is fine, content matters far more than polish.
Numbers beat adjectives: show the dashboard, the inbox, the rankings.