Sharing from here is the common case — you are looking at the thing you want to
send. Uses the native share sheet where there is one, otherwise copies, and the
link carries a filename so it ends in .mp4 for clients that read the URL rather
than the headers.
A finished video was a dead end from this page: you could watch it or download
it, and the only way back into the shots, cutaways and cut was to know the
script URL. Edit goes to the detail screen, which is now where re-filming and
the cut live.
