nt — Nostr Terminal (C99)

A fast, no-nonsense terminal client for Nostr, written in C99.

This is a from-scratch port of the original Node.js nt (NostrTerminal_5), built on top of nostr_core_lib for protocol, crypto, and NIP support.

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Philosophy

Fast in, fast out. nt is designed to feel like a CLI utility, not a chat app.

There is no persistent relay pool. Every action follows the same pattern:

1. Connect to the relays needed for the operation
2. Do the thing (publish an event, fetch a profile, query notes…)
3. Disconnect

This keeps the program lightweight, predictable, and easy to reason about:

• No background threads babysitting sockets
• No reconnection storms
• No hidden state between commands
• Memory and FDs return to zero between operations
• Trivial to script, embed in pipelines, or run on constrained hardware

When you want streaming behavior (e.g. a live feed), you explicitly enter that mode and explicitly leave it — at which point the sockets close.

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Goals

• Fast startup, fast shutdown. Sub-second from launch to first prompt.
• Tiny footprint. Single static binary, minimal dependencies.
• Predictable. One screen, one job. Connect → act → disconnect.
• Hackable. C99, well-organized source, easy to fork.
• Self-contained. Local SQLite cache; no daemon, no server.

Non-Goals

• Maintaining long-lived relay connections in the background
• Acting as a relay yourself (the original Node version had a stub WSS — dropped here)
• Being a full-featured GUI client
• Push notifications

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Features (planned)

See planning.md for the full breakdown by priority.

Core (P0)

• Login via seed phrase, nsec, npub, or NIP-46 bunker
• Profile view/edit (KIND 0)
• Relay management (KIND 10002)
• Quick tweet (KIND 1)
• Follows list (KIND 3)

Reading & Writing (P1)

• Live feeds (follows, mentions, notifications, firehose) — explicit subscribe mode
• Long-form posts (KIND 30023 / 30024) with vipe editor integration
• Encrypted DMs (NIP-17 sealed, NIP-04 legacy)
• Notifications digest

Extras (P2)

• Encrypted todo list
• Daily diary
• Cashu eCash wallet (NIP-60 / NIP-61)
• AI prompts (Venice.ai / local Ollama)

Experimental (P3)

• Circus mode (AI persona swarm)
• Blossom media server management
• Bulk database maintenance

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Architecture

┌─────────────────────────────────────────────┐
│             nt (this project)                │
│  ┌──────────┐ ┌─────────┐ ┌──────────────┐  │
│  │   TUI    │ │ Menus   │ │  SQLite Cache│  │
│  │ (ncurses)│ │ (C99)   │ │  (~/.nostr)  │  │
│  └──────────┘ └─────────┘ └──────────────┘  │
│         │           │            │           │
│         └───────────┼────────────┘           │
│                     ▼                        │
│        ┌────────────────────────┐            │
│        │ Connect → Act → Close  │            │
│        └────────────────────────┘            │
│                     │                        │
└─────────────────────┼────────────────────────┘
                      ▼
          ┌─────────────────────────┐
          │     nostr_core_lib      │
          │  (NIPs, crypto, pool,   │
          │   websocket, cashu,     │
          │   blossom, http)        │
          └─────────────────────────┘
                      │
                      ▼
              ┌──────────────┐
              │  Nostr Relays│
              │  (transient) │
              └──────────────┘

Local SQLite at ~/.nostr/nostr.db is the only persistent state between invocations. It caches:

• Events (regular / replaceable / addressable / ephemeral)
• Relay metadata (NIP-11 info, RTT, kind-1 acceptance tests)
• People (cached pubkeys, names)
• Publish history (relay_posts)
• Local key/value state

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Dependencies

Build:

• C99 compiler (gcc / clang)
• CMake ≥ 3.10

Libraries (system):

• ncurses — terminal UI
• sqlite3 — local cache
• libcurl — HTTP (NIP-11, AI APIs, nostr.watch)
• openssl — TLS for WebSockets

Libraries (vendored in resources/nostr_core_lib):

• nostr_core_lib — Nostr protocol, NIPs, crypto, relay pool, websocket
• cJSON — JSON parsing

External tools (optional, runtime):

• vipe (from moreutils) — for editor-based note composition
• brave-browser — for the optional web UI launcher

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Building

git clone <this-repo>
cd nostr_terminal
mkdir -p build && cd build
cmake ..
make
./nt

(Build instructions are tentative — to be finalized once the implementation lands.)

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Project Layout

nostr_terminal/
├── README.md             ← you are here
├── planning.md           ← detailed feature/menu breakdown
├── CMakeLists.txt        ← top-level build
├── src/                  ← nt source code (C99)
├── include/              ← nt public headers
├── tests/                ← unit & integration tests
└── resources/
    ├── nostr_core_lib/   ← vendored protocol library
    └── NostrTerminal_5/  ← reference Node.js implementation

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Status

🚧 Early planning / scaffolding. See planning.md for the implementation roadmap and per-menu status.

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License

TBD