Cachet Drive
Keeps the folders you work in identical across your Macs, with an encrypted off-site copy.
About
Cachet Drive keeps the folders you work in identical across your Macs, directly over your own network. Point it at any folder where it already lives and the folder stays a plain local folder, so every path in every script keeps working and your applications talk straight to it at full speed.
Pair a second Mac with a QR code or 56 pasted characters, then work on either one. Changes cross the network block by block, and in our measurement on the same network a new file reached the second Mac in 18 seconds. Finder badges show each file's state, and the menu bar reads at a glance: up to date, syncing, paused, needs you, or engine down.
On a schedule you set, an encrypted copy goes off-site into a Cloudflare R2 or Amazon S3 bucket you own, with your keys, and file names are encrypted too. The copy flows one way, from your Macs into the bucket, and anything it replaces is kept in a dated folder. For folders that grow a line at a time, the high-churn engine sent 5.1 MB instead of 260.8 MB for the same day's changes.
Plain folders at full speed
Your folder stays exactly where it is as an ordinary folder on your disk. Measured on a MacBook Air 15-inch (M5), the 1-minute load average was 11 with Cachet Drive against 87 with two cloud drive clients.
Pair a Mac with a code
A QR code appears on screen, or 56 characters you can paste. The other Mac reads it and the two Macs introduce themselves directly, over your own network.
Finder badges and a readable menu bar
Icons in a synced folder carry their own state, and right-click offers share this folder, copy this Mac's code, pause, scan, or show earlier versions. The menu bar has five states.
Folder presets that know what to leave out
Build directories, dependency folders, and caches are left out by a preset rather than by you remembering. Presets are a plain file you can edit.
Conflicts get names
When two Macs edit the same file, both versions are kept and the second is named so you can tell them apart. Resolve from the Finder menu, and the version you did not keep moves aside with a timestamp.
An off-site copy with two engines
Choose per folder: the standard engine copies whole files, and the high-churn engine sends only the parts that changed, cut small enough that a one-line append drags almost nothing along.