This is macadamia, a native iOS client for cashu. cashu is a Chaumian eCash system designed for near perfect privacy.
macadamia support standard cashu operations such as:
- Minting of tokens
- Sending and
- Receiving
- Melting tokens (using them to pay a Lightning Network invoice)
- Restoring your wallet balance using a 12 word mnemonic seed phrase backup
Additionally, macadamia supports sending and receiving/redeeming tokens sent over the Nostr protocol!
You can test it using Testflight
Come join the discussion in the Telegram channel
This project is in the very early beta stages and propably contains bugs that can lead to a loss of funds. Please only experiment with amounts of sats you are ready to lose!
Complete
| Task | State |
|---|---|
Completion and Release of Cashu-swift as a standalone library for cashu API v1 written in Swift; Support for all mandatory NUTs as well as NUT-07, NUT-09 and NUT-13 initially |
|
| Test coverage on critical library functions (e.g. cryptography) | |
| Documentation and annotation on all public library functions | |
| Migration to Apple Developer Account for and transfer of Testflight App | |
| Wallet release with full Wallet-Library separation | |
| Wallet Database migration to SwiftData | |
| Mint Swap Feature | |
| Mint Info UI | |
| Deployment of reliable, high-availabilty demo mint. | |
| Rewrite of websocket related logic for nostr relay communication | |
| Website update | |
| App Store Release of first stable version with following features: Mint, Melt, Send, Receive, Restore from Seedphrase, Simple mint management, Mint Swap, sending and receiving via Nostr |
| Detail | State |
|---|---|
| V4 Token support | |
| Auto-Swap feature to let users automatically make a mint swap from the unknown mint to a trusted one via Lightning | |
| Animated QR-Codes | In Beta |
| Advanced mint selection: Allow users to set a default mint and enable automatic mint selection based on current balance, availability | |
| Multi-mint token sending: Enable the selective creation of a token containing proofs for multiple mints | |
Implementation of spending conditions in library (NUT-10) |
|
Support for P2PK spending condition (NUT-11) |
|
| Support for DLEQ Proofs for receiver-offline payments | |
| Wallet support for receiving offline payments | |
| Enable device biometric security for wallet protection, e.g. FaceID | |
| Encrypted iCloud backup for wallet database | |
| iMessage App Prototype to allow for sending and receiving of payments |
| Task | State |
|---|---|
| Multipart Cashu payments: Lets the wallet instruct multiple mints to collectively pay the sum of a single Lightning invoice | |
| Mint Watch: Notify users of any issues with their trusted mints such as disproportionally large balances or reliability problems | |
| Mint Balancing: Provide the option to have the wallet balance funds across trusted, reliable mints | |
| AirNut: Simple and reliable sharing of tokens using Bluetooth Low Energy as an alternative to the very restricted APIs for NFC on Apple devices; Relying on library support for NUT-11 | |
| watchOS Demo | |
| NFC payments on iPhone feasibility testing |
Really polished UI that hides all unnecessary complexity from casual users, but still provides advanced features to power users