All presenters who present a poster online need to:
1) send their poster (in .pdf) for printing by organizing committee
2) pre-record a lightning presentation (2 min MAX), upload it on YouTube, and share the link below.
YouTube makes it very easy to upload and share videos (see below). However, privacy settings for videos must not be set to "private", otherwise the organizing committee will not be able to access your video. Choose the "unlisted" or "public" privacy settings in Youtube.