This update adds automatic saving of campaign ghosts and times to the Steam cloud alongside your preferences. It’s bidirectional, meaning you can hand off between devices and it’ll sync your best time across both of them.

This happens automatically when you record a new time, but if you already have times on a track that you want to sync to a new device, you need to load into that track once and your time will automatically be synced.

I could have done it for all ghosts from the main menu, but that would mean a permanently longer startup time for the game.