Tour

Prevail Desktop is the native app — a private, local-first life-OS for macOS and Windows. It bundles the engine, so there’s nothing to wire up: download, launch, and you’re in. Built with Tauri 2, React 19, and Tailwind 4.

The home screen — domains on the left, your models along the input bar, and the council one tab away.

The layout

Area	What it is
Domain sidebar	Every life-domain in your vault, pinned ones up top. + new domain adds one.
Header tabs	Chat · Council · Benchmark — the three working surfaces.
Top-right	Insights, Usage, Preferences, and Back up.
Input bar	Your prompt, a framework/lens picker, and the model selector (single model or Council).
Status bar	Connection state and a demo-mode banner with a one-click “set up your own vault.”

What it does

Chat, domains & council Domain-grounded chat with any model, and the council with a chair-synthesized verdict.

Models & providers Installed CLIs (Claude, Codex, Antigravity, Ollama) or 200+ models via OpenRouter.

Memory & self-learning Every chat becomes a durable intent and per-domain memory that's read back next time.

Demo mode & starter packs Explore a pre-loaded household, then import a domain set for your situation.

The benchmark viewer Run and read scored benchmarks to see which model serves your decisions best.

Settings & integrations Models, memory, safety, gateway, MCP, providers, remote — everything in one place.

Same vault, same engine

The desktop app and the CLI read the same vault format and run the same engine. Use the app on your laptop and the CLI on a server against the same synced vault — they’re two surfaces over one set of files.

Local-first by default

Your vault, your chats, and the durable intent ledger stay on your machine. Nothing leaves unless you turn on an integration (a cloud model, the Telegram bridge, the WebUI). Secrets live in the system Keychain, not in the vault. Telemetry is off unless you explicitly opt in.

→ Privacy & local-first · Security & threat model

How it’s built

• Frontend: Vite + React 19 + Tailwind 4. Talks to the backend only through a single bridge (bridge.ts) — Tauri IPC on desktop, HTTP/SSE in the browser (so the same UI can be served to your phone).
• Backend (Rust): Tauri 2 — the engine seam, the distillation daemon (self-learning), the Telegram and WebUI bridges, and ingestion/MCP.
• Bundled engine: the prevail CLI ships as a Tauri externalBin sidecar, so the install is fully self-contained — no separate download, no daemon, no Docker.

→ Engine architecture

Get it

Download for macOS or Windows — signed, notarized, and self-updating. Then take the quickstart.