| Component | Technology | Notes |
|---|
| Language | Rust | Memory safety, cross-platform |
| Crypto | ed25519-dalek, x25519-dalek, chacha20poly1305, argon2 | RustCrypto audited crates |
| Storage | SQLite | Encrypted with XChaCha20-Poly1305 |
| Serialization | serde + JSON | Protocol messages |
| FFI | UniFFI | Swift/Kotlin bindings |
| Component | Technology |
|---|
| UI Framework | SwiftUI |
| Language | Swift |
| Bindings | UniFFI (SPM package) |
| Min iOS | 15.0 |
| Component | Technology |
|---|
| UI Framework | Jetpack Compose |
| Language | Kotlin |
| Bindings | UniFFI (Gradle dependency) |
| Min SDK | 26 (Android 8.0) |
| Platform | Framework | Language | Bindings |
|---|
| macOS | SwiftUI | Swift | UniFFI (SPM) |
| Linux (GTK) | GTK4 + libadwaita | Rust | Direct (same process) |
| Linux (Qt) | Qt 6 | C++ | C ABI (vauchi-cabi) |
| Windows | WinUI 3 | C# (.NET 8) | C ABI (vauchi-cabi) |
| Component | Technology | Notes |
|---|
| Framework | SolidJS | TypeScript, WASM bridge |
| Core | vauchi-core (WASM) | wasm32-unknown-unknown target |
| Crypto | Pure RustCrypto (WASM) | No WebCrypto bridge needed (SP-30) |
| Component | Technology |
|---|
| CLI | Rust (clap) |
| TUI | Rust (ratatui) |
| Component | Technology | Notes |
|---|
| Language | Rust | Standalone binary |
| WebSocket | tokio-tungstenite | Async runtime |
| TLS | rustls | Certificate handling |
| Storage | In-memory + disk | Encrypted blobs only |
| Tool | Purpose |
|---|
| Just | Task runner |
| Cargo | Rust package manager |
| npm/pnpm | JavaScript dependencies |
| Docker | Containerization |
| GitLab CI | Continuous integration |
| Operation | Target |
|---|
| Contact exchange | < 3 seconds |
| Update propagation | < 30 seconds (when online) |
| Local operations | < 100ms |
| App startup | < 2 seconds |
| Limit | Value |
|---|
| Max contact card size | 64KB (encrypted) |
| Max contacts per user | 10,000 |
| Max fields per card | 100 |
| Max linked devices | 10 |
vauchi-core (standalone, no workspace deps)
↑ (git dependency)
cli/, tui/, e2e/, macos/, windows/, linux-gtk/, linux-qt/, web-demo/
vauchi-platform (UniFFI bindings, in core/ workspace)
↑ (via generated binding repos)
android/ ← vauchi-platform-kotlin (Gradle)
ios/ ← vauchi-platform-swift (SPM)
vauchi-cabi (C ABI exports, in core/ workspace)
↑ (cbindgen)
linux-qt/, windows/
relay/ (standalone, uses vauchi-protocol for shared types only)
Downstream repos use git dependencies with branch-based pinning (branch = "main").
Local development uses .cargo/config.toml path overrides.
Vauchi Docs