Your captures on every Mac
Frayo has no account and no cloud. To get your Library onto your other Macs, point it at a folder your sync app already shares.
You take a screenshot on the laptop. An hour later you are at the desk Mac and cannot find it. So you email it to yourself, or you drag it into a chat.
Most tools fix this with their own cloud and an account. That means another login, another server that holds your screenshots, and another bill. Frayo does it a simpler way.
Use the sync you already have
Open Settings → Library. Turn on Sync Library with iCloud Drive. Or choose Library location → Choose Folder… and pick a folder in Google Drive, Dropbox or OneDrive.
Frayo puts your Library in a folder named "Frayo Library" there. Your sync app does the rest. Set the same folder on your other Macs, and the captures show up in the Library on each.
Frayo itself does not talk to a network for this. It writes files into a folder. The sync app moves them.
Two Macs, no clashes
Every capture lives in its own folder. When two Macs add captures at the same time, they never write to the same file, so there is nothing to merge and nothing to overwrite.
When a capture arrives from another Mac, the Library window updates. In iCloud Drive, an older capture may not be on this Mac yet. Frayo shows a cloud in place of the preview, and downloads the file when you open it.
Moving is careful
The first move copies your existing captures. Frayo checks each copy against the original. It removes the originals only when every capture has arrived, and you can cancel at any point. If something fails, both copies stay.
If the shared folder is not there at launch, because a drive is not mounted, Frayo uses the default Library for that session and keeps your setting. It does not make a new empty folder in the wrong place.
One Mac cannot empty another
Captures expire from the Library after 30 days by default. On a shared Library, that rule is switched off. Otherwise a short setting on one Mac could send another Mac's captures to the Trash. Delete what you want gone, by hand.
Moving the Library back out of a shared folder asks you first. You can copy it and leave the synced copies, or move it and remove them from your other Macs.
What this means for privacy
The files in the folder are your captures, and the text index next to each one. Whoever runs your sync service can see them, as they can see anything else in that folder. That is your choice, and it is off until you make it. Leave the Library on your Mac, and nothing syncs.
One licence, three Macs
One Frayo licence works on up to 3 of your Macs. You can move it between them from the License window. The number of Macs is a placeholder for now.