The start time will be marked as the time the text was sent to you. The delay before you start will be similar for everyone.
When you've completed the puzzle there will be another button on the member page. At that time you will upload the pictures you took earlier, and a picture of the completed puzzle.
The rules for competition will be similar, but the entire solving period will be captured via video.
No more than 3 people should work on a puzzle at the same time. If one individual leaves the table, another can step in. No help can be provided by someone that is not part of the current three team members at the table.
You can take as many breaks as you need. Sleep if necessary. However, the total time the puzzle is on the table unassembled counts as solution time. The timer is not turned on and off as you work on the puzzle.