2026-04-15 12:51:14 +02:00
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# AMM UI
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A QML UI application for the Automated Market Maker (AMM) program.
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See the [Logos QML UI App Tutorial](https://github.com/logos-co/logos-tutorial/blob/master/tutorial-qml-ui-app.md) for more information.
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2026-06-24 14:50:17 +02:00
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## Wallet / chain integration
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This app is a `ui_qml` module with a hand-written C++ backend
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(`src/AmmUiBackend.*`, plugin in `src/AmmUiPlugin.*`) that depends on the core
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**`logos_execution_zone`** wallet module. The backend calls the core module's
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wallet FFI through `m_logos->logos_execution_zone.*` and exposes an async QtRO
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surface (`src/AmmUiBackend.rep`) plus an account list model to the QML view.
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**Onboarding is non-invasive.** The app opens straight to the Trade screen; the
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navbar shows **Connect** (opens a password-only modal) or **Connected** + the
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account selector. There is no path picking — the wallet uses LEZ's canonical
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home, `~/.lee/wallet/` (override with `LEE_WALLET_HOME_DIR`, the same var LEZ
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honors), and its config (`wallet_config.json`) self-initializes.
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Account/keystore sharing follows the runtime:
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- **Standalone** (`nix run .`): own core-module instance, but the canonical
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`~/.lee/wallet` keystore is shared with the LEZ wallet UI and any other LEZ
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app on the machine. A previously-created wallet auto-opens on launch.
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- **Inside Basecamp**: the core wallet module is a single shared instance, so on
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startup the backend **adopts** the already-open wallet (see
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`openOrAdoptWallet()`), surfacing **shared** accounts across apps.
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> Follow-up: the wallet FFI requires explicit `config_path`/`storage_path` even
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> though the wallet crate already defines defaults (`~/.lee/wallet`,
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> `from_path_or_initialize_default`). A `wallet_ffi_create_new_default()` /
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> `_open_default()` upstream would let the app drop its path handling entirely.
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2026-04-15 12:51:14 +02:00
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## Setup
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This project requires Nix with experimental features enabled. If you haven't already, enable them permanently:
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```bash
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mkdir -p ~/.config/nix && echo "experimental-features = nix-command flakes" >> ~/.config/nix/nix.conf
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```
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## Running the UI
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Start the UI with:
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```bash
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nix run .
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```
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This builds and runs the application in development mode.
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## Updating Dependencies
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To update the pinned versions of dependencies in `flake.lock`:
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```bash
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nix flake update
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```
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