2ro 65d8d0f7bd Goblin: language-aware news panel
Show the newest news article whose language matches the wallet's active
locale, falling back to the newest English article when none exists.

Language detection per article, in priority order:
1. An event language tag: NIP-32-style ["l","<code>","ISO-639-1"] or the
   bare ["l","<code>"] / ["lang","<code>"] (code is the tag's 2nd element),
   extracted in handle_news and persisted on NewsItem.lang.
2. A trailing "[xx]" marker on the title (case-insensitive, xx = ISO 639-1
   two letters), e.g. "2026-07-05 Welcome to Goblin [de]".
3. No marker anywhere = English.

Selection happens at the data layer (news_latest): the store stays
language-agnostic (still newest-per-d-tag, cap 8, edit-in-place). Among all
cached articles, filter by detected language, take the newest by created_at;
the "[xx]" marker is stripped from the displayed title. The app locale is
folded to its ISO 639-1 primary for matching (zh-CN -> zh).

The GOBLIN_FAKE_NEWS debug hook now injects an English + German sample so the
panel selection can be screenshotted per locale.

Unit tests: tag detection (both shapes), title-suffix detect + strip,
no-marker-means-English, zh-CN folding, locale match + English fallback,
newest-within-language-slice.
2026-07-05 00:34:47 -04:00
2026-05-03 10:05:03 +03:00
2026-07-05 00:34:47 -04:00
2024-04-14 14:04:34 +03:00

Goblin

Goblin

Goblin is a private, pay-by-username wallet for GRIN ツ - confidential digital cash on Mimblewimble, with no amounts or addresses on the chain.

Instead of passing slatepack files back and forth, you pay a username (or an npub) and the payment is delivered for you as an end-to-end encrypted message over nostr, routed through Tor. Relays only ever see ciphertext - never the amount, the sender, or the recipient. Tor hides your IP from the relay; the relay and encryption hide the rest - content, sender, timing.

Goblin is a fork of the Grim egui GRIN wallet: it keeps Grim's full GRIN node/wallet engine and layers a Nostr-native, mobile-first payments experience on top.

What it does

  • Send to people - pay a username or npub; the GRIN slatepack travels as a NIP-17 gift-wrapped DM (kind 1059) over Tor and is applied automatically by the recipient's wallet. No files to swap, no need to both be online at once.
  • Manual slatepacks too - when you need to pay or get paid without a handle, Settings → Wallet → Slatepacks exposes the classic by-hand flow: create a slatepack to send, or paste one to receive, finalize, or pay.
  • In-app identity - a nostr payment key that is deliberately not part of your seed, so you can rotate it any time to stay unlinkable without touching your funds. An optional human-readable name comes from the goblin.st identity service.
  • Private by construction - GRIN's address-less, confidential chain; your payments and identity (nostr relays, NIP-05 lookups, price) are routed through Tor, so who-pays-whom never touches the clear net. The GRIN node connection - block sync and broadcasting your transaction - is direct: public chain data, the same for everyone, and not tied to your identity. Keys, names and history stay on your device.
  • Configurable amount pairing - show balances against a world currency, Bitcoin, or sats (rates fetched over Tor), or turn the preview off.
  • News on Home - the latest post from the official Goblin news key (a kind 30023 long-form article) appears on the Home screen; it stays hidden when there is nothing to show, and only ever shows the newest article.
  • Cross-platform - Linux, macOS, Windows, Android, built in pure Rust on egui.

How a payment travels

   you ──slatepack──▶ NIP-17 gift wrap (kind 1059, NIP-44 encrypted)
                          │
                         Tor
                          │
            ┌─────────────┴─────────────┐
        your relays              recipient's DM relays (kind 10050)
            └─────────────┬─────────────┘
                          ▼
   recipient ◀──unwrap, verify seal author, apply slatepack

The wrap is NIP-44-encrypted, and delivery uses the recipient's DM relay list (kind 10050). Tor hides your IP from the relay; the relay and the encryption above hide the rest - content, sender, timing.

Both parties only need one relay in common. The default set is the Goblin relay plus large public relays (relay.damus.io, nos.lol), and the set is editable in Settings → Relays.

Build

Desktop (Linux / macOS / Windows)

Goblin links Tor in-process via arti - the wallet is a single self-contained binary, no sidecar, nothing separate to install:

git submodule update --init --recursive
cargo build --release
./target/release/goblin

Goblin's identity and payment traffic (nostr relays, NIP-05 lookups and price fetches) rides Tor: every relay, the money-path relay included, is reached over a Tor exit to its ordinary clearnet host. The GRIN node connection (block sync and transaction broadcast) is not routed through Tor: it connects directly, as it carries only public chain data that isn't linked to your wallet.

Android

Install the Android SDK / NDK, then from the repo root:

./scripts/android.sh build|release v7|v8|x86

v7/v8/x86 is the device CPU architecture for build; for release pass a version in major.minor.patch form.

Identity service (goblin-nip05d)

The optional name service lives in goblin-nip05d/ (axum + SQLite) and is deployed at goblin.st. It implements NIP-05 resolution, NIP-98-authenticated registration and release (names are never transferred - on a key rotation you release the old name and re-register, or import your existing identity). The wallet is fully usable - and fully anonymous - without it. Avatars aren't stored or served - clients render them from the pubkey (an npub gradient with the username's first letter, else the Grin mark).

License

Apache License v2.0.

Credits

🤖 Built with AI pair-programming assistance (Claude)

The underlying cross-platform GRIN wallet engine is the upstream Grim project.

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