Share boards with a link:
Click the "..." button on the board preview and select Share a link. If you are already within the board, click on Share in the top panel
From the Share screen, you will see multiple toggles, to ensure that your guests have the right amount of permissions.
To allow non-members to upload their own images and videos, make sure "View assets" and "Upload to the board" are switched to on.
Copy and share the link to give access to a contributor. Anyone with this link will now be able to add their own content to the board. They will not have access to any other boards in your workspace unless you create share links for those boards as well.
Create board guests
Navigate to a board and click the share button in the top right
Choose the "Invite people" option
Enter a valid email and choose permission levels
Video Tutorial: https://www.loom.com/share/196dc192523a485685e8b19351c4c29a