Capricio — Fast Offline Decision Helper

Capricio is a fast, offline-first desktop decision helper built with Tauri, Angular & Rust. Make instant choices (coin flip, random number, lottery draw, wheel) or structured decisions (weighted pros/cons, multi-criteria matrix). Lightweight, private, local-only with history.

Features

Instant decisions (< 3 clicks):

• Coin flip — customizable labels, <1s animation
• Random number — min/max range, no-repeat option
• List draw — pick 1 or N winners, with or without replacement
• Fortune wheel (V2) — visual draw with weighted segments

Thoughtful decisions:

• Weighted pros & cons — 3-level weights (V1), 1-10 scale (V2)
• Multi-criteria decision matrix (V2) — compare up to 8 options

Transverse:

• History — local chronological log, search & filters (V2)
• Light / dark theme with system detection
• Full keyboard navigation (Enter to redraw, Esc for home)
• 100% offline, no account, no telemetry, no ads

Tech Stack

• Frontend: Angular 22 + TypeScript (strict), Signals, minimal CSS design system
• Desktop shell: Tauri 2.x (typed invoke() IPC, least-privilege permissions)
• Core logic: Rust (rand, unit-tested scoring & draw modules)
• Storage: Local SQLite (rusqlite, versioned migrations, JSON payloads)

Architecture: Angular → Tauri IPC → Rust → SQLite. All sensitive logic lives in Rust; Angular handles presentation only.

Getting Started

Prerequisites: Node.js LTS, Rust stable, Tauri CLI prerequisites for your OS.

npm install
npm run start      # Angular dev server (http://localhost:1420)
npm run tauri dev  # Full desktop app in dev
npm run build      # Frontend production build
npm run tauri build # Native installers (.exe NSIS + .msix Store, .dmg/.app, .deb, .rpm)

Cold start < 1.5s, idle memory < 150MB, installer < 15MB (excl. native WebView).

Roadmap

• V1 MVP: coin, random number, list draw, simplified pros/cons, light history
• V2: wheel, decision matrix, fine-grained weights, favorites/templates, advanced history
• V3: export (PNG/PDF/text), decision timer, personal stats
• V4+: same-device multiplayer, accessibility (screen readers), optional E2E-encrypted sync

See docs/CDC – Application d'aide à la décision.md for the full spec (French).

Privacy by Design

Local-only storage. No cloud sync, no account, no tracking in V1. Future sync will be strictly opt-in and end-to-end encrypted.

Platforms

Windows (NSIS direct + MSIX Store) · macOS (DMG, Intel + Apple Silicon) · Linux (DEB for Debian/Ubuntu, RPM for Fedora)

Contributing

Lints: clippy / rustfmt (Rust), ESLint / Prettier (Angular). Rust logic must stay unit-tested (100% coverage on scoring & random). Keep UI sober per design principles in docs/.

License

GPL-3.0 — see LICENSE.