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docs: document macOS 26 (Tahoe) key export via export-findmy #260

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6 changes: 6 additions & 0 deletions .gitignore
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Expand Up @@ -165,3 +165,9 @@ airtag.plist
DO_NOT_COMMIT*
.direnv/
accessories/

# Local FindMy artifacts — never commit (device keys, saved sessions,
# downloaded anisette libraries)
devices/
account.json
ani_libs.bin
24 changes: 24 additions & 0 deletions README.md
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Expand Up @@ -60,6 +60,30 @@ For usage examples, see the [examples](examples) directory.
We are also building out a CLI. Try `python -m findmy` to see the current state of it.
Documentation can be found [here](http://docs.mikealmel.ooo/FindMy.py/).

## 🍎 Getting accessory keys on macOS 26 (Tahoe)

On macOS 26, the built-in `python -m findmy decrypt` can no longer read your
accessory keys: the `BeaconStoreKey` is locked behind an Apple-only keychain
entitlement, so the local decrypt path is blocked (see
[issue #177](https://github.com/malmeloo/FindMy.py/issues/177)).

Instead, export your keys from **iCloud Keychain** with
[`export-findmy`](https://github.com/stek29/export-findmy), which writes
FindMy.py-compatible JSON directly — no second Mac and no disabling SIP:

1. Build it (`cargo build --release`; needs `protoc` and `openssl`). macOS 26
support — native system anisette plus a Mac device profile — currently lives
in [this PR](https://github.com/stek29/export-findmy/pull/1); until it is
merged, build from that branch.
2. Copy `device-profile.template.toml` to `.local/device-profile.toml` and fill
the `[software]` section with your Mac's real identity
(`sysctl -n hw.model`, `sw_vers`).
3. Run `export-findmy --apple-id you@example.com --device-profile
.local/device-profile.toml`, sign in, and pick your Mac's escrow bottle
(its passcode is your Mac login password).
4. Copy the exported AirTag `.json` into `devices/` and query it, e.g.
`python3 examples/airtag.py devices/your_airtag.json`.

## 🤝 Contributing

Want to contribute code? That's great! For new features, please open an
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