Web "Open in Goblin" pay buttons fired generic nostr: URIs, which the
OS routed to whatever social client claims nostr:. Register a dedicated
goblin: scheme and route it (plus nostr: pay URIs) to the prefilled
send-review screen, the same destination as scanning a checkout QR.
Parser (payuri): accept goblin: alongside nostr: (same payload, either
scheme); add is_pay_uri() to tell a payment link from a slatepack.
Runtime: an argv/intent/socket payload that is a pay URI is stashed and
opened by the Goblin surface via SendFlow::from_deeplink, which shares
the exact apply_scan path the camera uses. Desktop cold + warm start
(argv + single-instance socket) and Android cold + warm (intent-filter)
covered.
Registration: Linux .desktop x-scheme-handler/goblin, Android goblin
intent-filter, macOS CFBundleURLTypes, Windows WiX HKCR URL protocol.
Floonet scoped Nym exit on the money-path relay (dial a relay operator's
co-located exit over a MixnetStream, TLS end to end, no public DNS; anchor +
fallback, never pin-only), NIP-44 v3 gift wraps (G4), mix-DNS, localization,
GUI polish. Verified end to end: two wallets complete a real gift-wrapped Grin
payment over relay.goblin.st, finalized + posted on mainnet.
2ro