Same-machine use needs no setup — pick “This machine”.
Set up a free collaboration server
A shared server lets people on other devices join your documents
live. Both options below are free. Each is a handful of guided
steps: the only part that truly needs you is creating the cloud
account — everything after that is copy, paste, done.
Keep documents in sync across your devices through a shared folder — iCloud, Dropbox, or any synced drive.
You've been invited to a shared document. Save a local copy to keep it synced.