Layream

Prompt editor, AI testing studio, and bot creation tool.

프롬프트 편집기, AI 테스팅 스튜디오, 봇 제작 도구.

Overview / 개요

• Android app: Tauri 2.0 + Rust backend + Svelte 5 frontend + GeckoView 128 ESR
• Core: Shared Rust crate (layream-core) — prompt parsing, CBS evaluation, AI API, cryptography

Features / 기능

Prompt & Character / 프롬프트 & 캐릭터

• Load/edit prompt presets (RisuAI .risup / .json compatible)
• Prompt assembly — CBS evaluation + regex + type-based template (plain/jailbreak/cot/description/persona/lorebook/authornote/postEverything/chat/memory)
• Character card viewer/editor (.charx / .jpeg / .png / .json), lazy loading, asset gallery, alternate greetings
• .risum module parser + multi-module loading (lorebook/regex/toggle merge)
• CBS template editor with syntax highlighting, block diagnostics
• Regex editor with live testing
• Library — presets, characters, modules

Persona / 페르소나

• Persona list — create, edit, delete, select per session
• Import from character card
• Injected into prompt via assemblePrompt

Workspace / 워크스페이스

• Multiple workspaces — create, switch, delete, each with own session
• Workspace selector in app header
• Per-workspace session/HyPA persistence

Chat & AI / 채팅 & AI

• Chat with streaming (SSE) via Vertex AI, GCA, Mistral AI
• Message editing, response swipe, regeneration, pin
• Retry with exponential backoff + cancel
• Conversation forking (branch/merge per message)
• Trigger scripts (11 event types)
• Autopilot — automated testing with persona, char-to-char mode, structured output
• HyPA v3 memory — summarize, cosine search, RAG injection, pin/invalidation
• Structured output (Vertex/GCA responseSchema + Mistral json_schema)

GeckoView (Firefox Engine)

• Embedded GeckoView 128 ESR — uses Firefox rendering engine instead of Android System WebView
• Local HTTP asset server for frontend serving
• IPC via WebExtension native messaging (cloneInto/exportFunction bridge)
• OAuth via GeckoView — not subject to embedded WebView restrictions

OAuth & Connectivity / OAuth & 연결

• Vertex AI OAuth — PKCE, deep link redirect, no client_secret
• GCA OAuth — client_secret, loopback TCP redirect
• Browser picker + Chrome Custom Tabs
• Session/preset/character persistence with app-close flush

Supported API Providers / 지원 API

Provider	Auth	Streaming	Embedding	Dynamic Model List
Vertex AI (Gemini)	OAuth (PKCE)	SSE	gemini-embedding-001/2	/v1/publishers/google/models
GCA	OAuth (secret)	SSE	-	Fixed list
Mistral AI	API Key	SSE	-	/v1/models (capabilities filter)
Voyage AI	API Key	-	voyage-3	-

Tech Stack / 기술 스택

• Rust (~10,000 LOC) — core library + Tauri backend
• Tauri 2.0 — Android app
• GeckoView 128 ESR — embedded Firefox engine
• Svelte 5 — frontend
• reqwest + rustls — HTTP client

Project Structure / 프로젝트 구조

layream-core/       Shared Rust library (18 modules, 200 tests)
  src/
    cbs/              CBS parser (LALRPOP math grammar) + highlighter
    preset.rs         Preset parsing (RPack → gzip → msgpack → AES-GCM)
    charx.rs          Character parsing + lazy loading
    vertex_auth.rs    Vertex OAuth + PKCE
    vertex_api.rs     Vertex AI API (stream, embed, list_models)
    gca.rs            GCA API (separate OAuth, loopback)
    mistral.rs        Mistral API (chat, list_models, capabilities filter)
    retry.rs          Retry + cancel token (exponential backoff)
    hypa.rs           HyPA v3 memory engine

layream-app/        Tauri 2.0 app
  src-tauri/src/
    commands_auth.rs    OAuth (Vertex, GCA)
    commands_chat.rs    Chat + embedding + model list + logs
    commands_library.rs Library CRUD
    commands_workspace.rs Workspace CRUD
    commands_settings.rs Settings/session/persona
    commands_cbs.rs     CBS evaluate/highlight
    commands_platform.rs Android (browser, permission, notification)
    commands_hypa.rs    HyPA (summarize, search, pin, invalidate)
    persistence.rs      Data persistence
  src/views/          ChatView, PresetView, CharacterView, PersonaView,
                      SettingsView, AutopilotView, HypaView, LibraryView,
                      ModuleEditView, TestView
  src/lib/            13 modules (assemblePrompt, messageStore, triggerEngine, etc.)
  src/components/     FileImport, CBSEditor, HypaModal, WorkspaceSelector, ResizableTextarea
  src-tauri/src/      7 command modules (auth, chat, library, workspace,
                      settings, cbs, platform) + commands_hypa.rs, persistence.rs
  gen/android/        GeckoView integration, AssetServer, IPC extension

Build / 빌드

# Core tests / 코어 테스트
cargo test -p layream-core

# Frontend dev / 프론트엔드 개발
cd layream-app && npm install && npm run dev

# Android APK (GeckoView included)
source scripts/env.sh
cd layream-app
npm run tauri android build -- --apk --target aarch64

Status / 상태

v0.4.0-alpha — Download APK / APK 다운로드

200 tests (122 unit + 56 behavior + 12 interop + 10 quality gate). APK ~184MB (GeckoView 포함).

License / 라이선스

See LICENSE.