Credits

Sail with the wind (Unsplash) by Natasha Miller, CC0 1.0 (public domain dedication). Taken in Maui, Hawaii.

A catamaran lying at anchor in a turquoise bay with its sails furled. Furl is about the moment a position is gathered in and stowed, and this is that moment photographed. The crop keeps the water, which is soft enough to sit behind type and saturated enough that the page is not near-white on near-white.

Wikimedia Commons · the original

The file served by this site is a crop of the bay, softened and re-encoded by tools/make-ground.mjs; the original is never served. The crop, the blur and the tone were chosen by measurement against the reference page, and the numbers are in CLAUDE.md.

Fraunces (Undercase Type, SIL Open Font License) for the display type, Figtree (Erik Kennedy, SIL OFL) for everything else, and DM Mono (Colophon Foundry for Google Fonts, SIL OFL) for addresses and calldata.

Furl deploys nothing. Every transaction it builds is a call to contracts that were already live on Robinhood Chain:

Every one of these was read back on chain and asked to prove what it is before it was written into js/config.js — node tools/verify-addresses.mjs. An address that is only ever copied from a document is an address nobody has checked.

Morpho for a lending primitive whose flash loan is free and whose accounting is legible enough to reimplement exactly; Uniswap for publishing the router source this chain actually runs; Blockscout for an explorer that answers questions the public node will not.