Job board.

Tap Claim this job to get in line. A new job takes claims for at least two hours — a job for tomorrow until 2 PM, one further out until 8 PM. When the window closes, everyone gets a seat if there's room; if not, the seats are drawn, so how fast you tap doesn't matter. If nobody on the job drives, the last seat waits for a driver. Everyone else goes on standby and moves up as seats open. After the window, an open seat goes to the next claim. Before you claim, the card shows the posting's rates; once you claim, it shows your own pay.