TauriTavern

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TauriTavern ports SillyTavern into a native desktop app with Tauri v2 + Rust backend while keeping the upstream frontend experience. The frontend is now synced to SillyTavern 1.16.0 and integrated through a modular Tauri injection layer.

Highlights

• Native desktop runtime on Windows, macOS, Linux (Tauri v2)
• Rust backend with clean architecture layering
• Frontend compatibility with SillyTavern 1.16.0
• Chat Completion providers: OpenAI, Claude, Gemini(MakerSuite), and Custom OpenAI-compatible endpoint
• Modular request injection pipeline (src/tauri/main/*), organized as a maintainable Host Kernel layering (context/kernel/services/adapters/routes)
• Stable platform ABI: window.__TAURITAVERN__ + request tracing header: x-tauritavern-trace-id
• Engineering guardrails: strict type checks (tsc -p tsconfig.host.json) + dependency/line-budget rules (routes must not reference window)
• Unified frontend bootstrap pipeline without runtime loader indirection

Architecture

Backend (src-tauri)

• presentation: Tauri commands and API boundary
• application: use cases/services and DTO orchestration
• domain: core models, contracts, errors
• infrastructure: file persistence, repositories, logging

Frontend (src)

• Upstream SillyTavern frontend code (HTML/CSS/JS)
• Tauri bridge and interception layer for replacing HTTP endpoints with local Tauri command calls

Frontend startup flow:

1. src/init.js loads lib.js -> tauri-main.js -> script.js
2. src/lib.js statically imports src/dist/lib.core.bundle.js and re-exports a stable ESM library surface (heavy/optional libs are loaded on demand via getHljs()/getReadability() from src/dist/lib.optional.bundle.js)
3. src/tauri-main.js delegates to bootstrapTauriMain()
4. src/tauri/main/bootstrap.js creates context/router/interceptors, installs the window.__TAURITAVERN__ platform ABI, and injects a trace header for host-handled routes

Frontend Integration Layout

src/
├── tauri-bridge.js              # low-level Tauri bridge (invoke/listen/convertFileSrc)
├── tauri-main.js                # thin bootstrap entry
├── init.js                      # startup orchestrator
├── lib.js                       # library facade (ESM exports)
├── dist/lib.core.bundle.js      # Rspack-built core vendor bundle (startup-critical)
├── dist/lib.optional.bundle.js  # Rspack-built optional vendor bundle (on-demand)
└── tauri/main/
    ├── bootstrap.js             # composition root
    ├── context.js               # compatibility shim (re-export `context/index`)
    ├── context/                 # host kernel facade + types (stable contract)
    ├── kernel/                  # pure logic (policies/tracing/hash/...)
    ├── services/                # stateful capabilities (assets/thumbnails/characters/android…)
    ├── adapters/                # adapters touching window/DOM/upstream ST
    ├── http-utils.js            # request/response parsing helpers
    ├── interceptors.js          # fetch/jQuery ajax patching
    ├── router.js                # lightweight route registry
    └── routes/
        ├── system-routes.js
        ├── settings-routes.js
        ├── extensions-routes.js
        ├── resource-routes.js
        ├── character-routes.js
        ├── chat-routes.js
        └── ai-routes.js

Development

Prerequisites:

• Rust stable
• Node.js 22.12+
• pnpm
• Tauri CLI

Setup:

git clone https://github.com/Darkatse/tauritavern.git
cd tauritavern
pnpm install

Common commands:

pnpm run check             # guardrails + host-kernel type checks (recommended)
pnpm run web:build         # build frontend bundles (Rspack)
pnpm run dev           # desktop dev mode (alias of tauri:dev)
pnpm run tauri:dev     # desktop dev mode
pnpm run tauri:build   # build desktop installers
pnpm run android:dev   # Android dev mode
pnpm run ios:dev       # iOS dev mode

Portable build notes:

• pnpm run tauri:build:portable outputs to release/ by default
• You can force portable runtime mode via TAURITAVERN_RUNTIME_MODE=portable or portable.flag
• On Windows, portable users must ensure WebView2 runtime is available

FasTools (Debug Utility)

fastools is an useful toolkit that facilitates debugging during development and desktop deployment.

Build:

pnpm run fastools:build

Run:

• pnpm run fastools:run

If you prefer cargo directly, run from repository root:

cargo build --release --manifest-path fastools/Cargo.toml
cargo run --manifest-path fastools/Cargo.toml

Documentation

• docs/FrontendGuide.md: frontend architecture and extension guide
• docs/FrontendHostContract.md: public host-kernel contract (keep stable during refactors)
• docs/BackendStructure.md: backend architecture details
• docs/TechStack.md: stack and integration choices
• docs/ImplementationPlan.md: roadmap and milestones

License

AGPL-3.0 (same license family as SillyTavern).

Acknowledgements

• SillyTavern
• Tauri
• Cocktail
• Tavern-Helper
• LittleWhiteBox
• MikTik