A zero-knowledge password and document vault that syncs across Macs signed in to different Apple IDs, Windows machines and the browser — through a Mac in your own house rather than somebody else's cloud.
Where it stands
In testing and used every day on real passwords, which is the only test that counts for something like this. A month of work went into the hardest part: giving someone else a copy of a login without handing over the vault. Sharing, passkeys and browser autofill all got sharper — a share you haven't accepted never reaches autofill, and an unshared item says so rather than failing quietly.
| Zero knowledge | Everything is encrypted before it leaves the device. The server stores ciphertext and never holds the key — including when the server is yours. |
| Your own server | Syncs through a Mac you own over Tailscale. No third-party cloud sits in the middle, and there is no company that can be breached on your behalf. |
| Across Apple IDs | iCloud Keychain stops at the boundary of one Apple ID. This doesn't — two Macs signed in as different people can share a vault. |
| Windows and web | Not Mac-only. The same vault opens on Windows and in a browser. |
| Give a copy | Hand one login or document to someone else without opening the vault to them. They get their own copy; take the share back and it stops being theirs. |
| Documents too | Passports, licences, recovery codes — the things that need the same protection as a password and never fit in a password field. |
| No subscription | Nothing to renew, and nothing that locks your own data behind a lapsed payment. |