remove evm + add xrp

README.md

@@ -1,16 +1,16 @@
 # Koins
 
-Multi-chain desktop wallet for **Ethereum**, **BSC**, **Polygon**, and **Monero**. Built with [Bun](https://bun.sh) + [Electrobun](https://electrobun.dev) + Svelte.
+Desktop wallet for **Monero** and **XRP**. Built with [Bun](https://bun.sh) + [Electrobun](https://electrobun.dev) + Svelte.
 
 ## Features
 
-- **Multi-coin mode**: ETH, BSC, Polygon wallet with seed phrase vault stored in system keychain
 - **Monero mode**: Self-contained Monero wallet — auto-downloads `monero-wallet-rpc` binary on first launch, no manual binary install
+- **XRP mode**: XRP Ledger wallet — generate or import XRP seeds, send payments with optional destination tags
 - **Touch ID unlock**: Biometric auth via Swift helper, no node-gyp or FFI dylib
 - **Password fallback**: PBKDF2-salted password stored in keychain, used when biometric is unavailable
 - **QR codes**: Address QR with chain logo overlay
-- **Transaction history**: Cached in local SQLite via Drizzle ORM
-- **Settings**: Reset app clears all DB tables and keychain entries
+- **Transaction history**: Live XRP ledger transactions and Monero wallet transactions
+- **Settings**: Reset app clears all keychain entries
 
 ## Prerequisites
 
@@ -35,41 +35,38 @@ apps/desktop/
 │   │   │   ├── monero/         # Monero RPC management
 │   │   │   │   ├── binary.ts   # Download/extract monero-wallet-rpc
 │   │   │   │   └── wallet.ts   # Child process + RPC client
-│   │   │   ├── alchemy/        # Alchemy API calls
-│   │   │   ├── viem/           # viem chain calls
-│   │   │   ├── tokens/         # Token metadata (DB-first cache)
-│   │   │   ├── transactions/   # Tx history + details (DB-first cache)
-│   │   │   ├── db/             # Drizzle ORM + SQLite schema
+│   │   │   ├── xrp/            # XRP Ledger client (xrpl)
 │   │   │   └── biometric.ts    # Biometric auth (Swift subprocess)
+│   │   ├── rpc/
+│   │   │   ├── monero/         # Monero RPC handlers
+│   │   │   └── xrp/            # XRP RPC handlers
 │   │   └── native/
 │   │       └── biometric-helper.swift  # Touch ID prompt binary
 │   ├── lib/
 │   │   ├── states/
-│   │   │   └── wallet.svelte.ts        # Wallet state (singleton)
-│   │   ├── components/
-│   │   │   └── EvmDashboard.svelte     # Shared EVM dashboard
+│   │   │   ├── monero-wallet.svelte.ts # Monero wallet state (singleton)
+│   │   │   └── xrp-wallet.svelte.ts    # XRP wallet state (singleton)
 │   │   └── electrobun.ts               # RPC type definitions
 │   └── routes/
 │       ├── index.svelte       # Login/welcome page
-│       ├── multicoin/         # ETH / BSC / Polygon routes
-│       ├── monero/            # Monero dashboard
-│       ├── settings.svelte    # App settings
-│       └── tx/                # Transaction details
+│       ├── monero/            # Monero routes
+│       ├── xrp/               # XRP routes
+│       └── settings.svelte    # App settings
 └── package.json
 ```
 
 ## Key Decisions
 
 - **Monero via RPC, not WASM**: `monero-ts`'s WASM wallet (`MoneroWalletFull`) doesn't work in Bun because the C++ HTTP client fails at runtime. Instead, `monero-wallet-rpc` runs as a child process.
-- **SQLite cache**: All chain data (tx history, receipts, token metadata) cached in SQLite via Drizzle, not localStorage.
+- **XRP via xrpl**: Uses the official `xrpl` library over the public `wss://s1.ripple.com` WebSocket server. XRP seeds are stored in the system keychain.
+- **Keychain storage**: Wallet seeds and metadata are stored in the macOS keychain via `Bun.secrets`, not a local database.
 - **Biometric auth**: Uses a Swift binary spawned via `Bun.spawnSync()` (not `dlopen` — Bun crashes on ObjC runtime; not `node-mac-auth` — fragile node-gyp chain).
-- **Separate account types**: EVM and Monero are separate account types with their own seed formats and auth flows.
+- **Separate account types**: Monero and XRP are separate account types with their own seed formats and auth flows.
 
 ## Dependencies
 
-- [Viem](https://viem.sh) — EVM chain RPC calls + wallet operations
+- [xrpl](https://github.com/XRPLF/xrpl.js) — XRP Ledger client
 - [monero-ts](https://github.com/woodser/monero-ts) — Monero RPC client
-- [Drizzle ORM](https://orm.drizzle.team) — SQLite schema + queries
 - [Svelte 5](https://svelte.dev) — UI framework
 - [Electrobun](https://electrobun.dev) — Desktop app shell
 - [sv-router](https://github.com/TZGyn/sv-router) — File-based routing
@@ -80,5 +77,4 @@ apps/desktop/
 
 ```bash
 bun run dev       # Start development server
-bun run db:push   # Push Drizzle schema to SQLite
 ```