# Current Development State

**Last updated**: 2026-03-14 (v1.2.0)

## Architecture

Archipelago is a pure, standalone Bitcoin Node OS. All StartOS dependencies were removed in v1.0. The stack:

- **OS**: Debian 12 (Bookworm) — x86_64 and ARM64
- **Backend**: Rust binary (`archipelago`) on port 5678
- **Frontend**: Vue 3 + TypeScript + Vite 7 + Tailwind CSS
- **Containers**: Podman (root-level via `sudo podman`)
- **Web Server**: Nginx reverse proxy (port 80/443 → backend 5678)
- **Tor**: System Tor daemon with hidden services
- **Systemd**: `archipelago.service` with watchdog (60s)

## Active Nodes

| Node | IP | Hardware | RAM | Disk | Containers |
|------|-----|----------|-----|------|------------|
| Arch 1 | 192.168.1.228 | Intel i3-8100T | 16GB | 1.8TB NVMe | 32 |
| Arch 2 | 192.168.1.198 | — | 8GB | 457GB | 34 |

Both nodes are federated over Tor with bidirectional DWN sync.

## Backend Modules

```
core/archipelago/src/
├── api/                    — HTTP server, RPC handler (100+ endpoints)
│   ├── handler.rs          — HTTP routing (/rpc, /health, /dwn, /ws)
│   └── rpc/                — RPC endpoints (auth, identity, federation, etc.)
├── backup/                 — Full backup + identity backup (ChaCha20-Poly1305)
├── container/              — Container management (Podman, health checks)
├── identity.rs             — Ed25519 node identity, did:key, DID Documents
├── identity_manager.rs     — Multi-identity (Personal/Business/Anonymous)
├── credentials.rs          — W3C Verifiable Credentials
├── federation.rs           — Multi-node federation over Tor
├── network/                — DWN store, DWN sync, DNS, routing
├── nostr_discovery.rs      — Nostr presence (kind 30078)
├── nostr_handshake.rs      — NIP-44 encrypted peer communication
├── health_monitor.rs       — Container health monitoring + auto-restart
├── crash_recovery.rs       — Start stopped containers on boot
├── monitoring/             — System metrics collection
├── session.rs              — Session management + rate limiting
├── update.rs               — Update checking + scheduling
└── wallet/                 — LND integration, ecash, profits tracking
```

## Key Features (Working)

- **30+ containerized apps**: Bitcoin Knots, LND, Mempool, BTCPay, Nextcloud, Immich, Jellyfin, Home Assistant, etc.
- **Multi-node federation**: Invite-based joining, trust levels, state sync over Tor
- **DWN sync**: Bidirectional message replication between federated nodes
- **W3C identity**: did:key, DID Documents, Verifiable Credentials
- **NIP-07 signing**: iframe apps can sign Nostr events with consent
- **File sharing**: Content catalog with access controls (free/peers-only/paid)
- **Encrypted backups**: Create, verify, restore with Argon2 + ChaCha20-Poly1305
- **Health monitoring**: Auto-restart crashed containers with exponential backoff
- **Tiered startup**: Databases → Core → Applications ordering on boot
- **Web UI**: Glass morphism design, real-time WebSocket updates

## Planned (Not Yet Implemented)

- **did:dht**: DHT-based discoverable identities (architecture documented)
- **DWN protocol schemas**: 4 Archipelago protocols defined, registration implemented
- **Multi-user support**: Admin/viewer/app-user roles
- **Cluster mode**: Multi-node HA with consensus
- **Mobile companion**: Read-only PWA for remote monitoring

## Test Coverage

Cross-node test suite (`scripts/test-cross-node.sh`) covers:
- US-01: System health (6 checks × 2 nodes)
- US-02: Container lifecycle (3 checks × 2 nodes)
- US-03: Federation join (4 checks × 2 nodes)
- US-04: Federation sync (4 checks × 2 nodes)
- US-05: Tor hidden services (2 checks bidirectional)
- US-07: File sharing (5 checks bidirectional)
- US-08: DWN sync (5 checks × 10 iterations)
- US-09: NIP-07 signing (1 check × 2 nodes)
- US-10: Backup/restore (4 checks × 10 iterations × 2 nodes)
- US-15: Boot recovery (3 checks × 3 reboots per node)