The checkout QR now carries the payable amount so a scanning Goblin
wallet auto-fills it:
nostr:<nprofile>?amount=<decimal GRIN>&memo=<percent-encoded>
The amount param is added only for an exact-amount invoice; open-amount
invoices stay a bare nostr:<nprofile>. The memo is percent-encoded. The
URI never includes the invoice token or any key - only the already-public
recipient nprofile, relay hints, amount, and the memo shown on the page.
The human-readable nprofile/npub page strings are unchanged.
Strip the internal milestone scaffolding (Status: milestone N, the (M4)/(M5)/
(M5b)/(M6) feature tags, and the milestone-11 roadmap line) from the public
README. The feature docs, config, API, and webhook contract are unchanged --
only the internal planning labels are removed.
A self-hostable Grin payment server for shops, creators, and sites: show a
code, Grin lands in your wallet, with a verifiable Grin payment proof on
receive. Workspace crates (gp-core / gp-nostr / gp-server / gp-wallet /
gp-goblin-sender), a WooCommerce connector, a hosted /pay/<token> checkout,
and NIP-44 v3 gift-wrapped payment DMs carried over the Nym mixnet. All
secrets are read from the environment; none are committed.
2ro