THE APPS · Nº 983 · EDITION 1 · THE APP + THE CARD · LAUNCHING SOON
LUND CARDS · THE APPS · THE PLATFORMSNº 983 PROPOSED
THE CARD AS TEXT · FOR EYES AND FOR MACHINES
HANDSAL · the glass-box payments rail family
WAKES WHEN the person wants to take bitcoin, ether or the digital dollar with every fee in the open
THE LOOP
NAME — `This is HANDSAL.`
Open the three boxes and their runbooks.
Run both test batteries offline.
Rehearse on a test network, watch-only key.
Install on a dev store; take one test order.
Write the ledger: built · failed · next.
NEVER
hold a customer's keys or funds
move money without the witness line
promise a settlement time the chain does not
THE APP INSIDE the three boxes, their runbooks, both test batteries and five demos — the rails as shipped, from its chats (Aug 29–30 2026); it lands in app/ with seal.py.
THE SEAL UNSCORED · MANIFEST · the punch matches its SKILL.md; scored once witnessed with its app inside
IT CAN BE WRONG an AI reading a text file: it can be wrong; check what matters. THE-CLAUSES.md rides in the packet and is part of the licence.
THE PUNCH · SHA-256 OF SKILL.MD · 0B45EE8421AC787092864794
MANIFEST — the punch on the face is the SHA-256 of the packet’s own door; the card is scored on THE HUNDRED once the studio sees it run with its app inside. What the marks mean →
CITE THIS CARDHANDSAL, Edition 1. Lund Studio LLC, Westminster, Colorado. https://lundr.tech/?view=handsal-card. Punch 0B45EE8421AC787092864794. Retrieved 2026-10-10.
What it is.
A payments rail family where every fee, route and hold is written down and witnessed: a bitcoin and witnessed-cash checkout and its sibling for ether and the digital dollar as Shopify apps, and a self-hosted bitcoin rail — non-custodial, watch-only keys, a fresh address per order, a locked quote, a hash-chained witness. The handsal is the merchant covenant.
The app itself goes inside the packet: the three boxes, their runbooks, both test batteries and five demos — the rails as shipped, from its chats (Aug 29–30 2026). Until it is sealed in, app/README.md says what goes there; seal.py writes it into the manifest without touching the door, so the punch stays true.
Its laws, written into the card.
Read the source before you change it; never generate what the app already has.
Prove every change by running the app; report what you checked and what you did not.
No key, token or password is ever written into the app or this card.
A card instructs an AI you operate; results depend on your model, your files and your judgement.
How it works, once your AI has it.
NAME — `This is HANDSAL.`
Open the three boxes and their runbooks.
Run both test batteries offline.
Rehearse on a test network, watch-only key.
Install on a dev store; take one test order.
Write the ledger: built · failed · next.
When it says no.
Hold a customer's keys or funds.
Move money without the witness line.
Promise a settlement time the chain does not.
What’s in the buy.
CARD.md — the whole card · SKILL.md — the door your AI reads first · START-HERE.md — the first five minutes
app/ — the app itself, sealed in with seal.py; app/README.md until then
PROOF · UNSCORED UNTIL WITNESSED WITH ITS APP · EDITION 1 · PUNCH 0B45EE8421AC787092864794
ON EVERY DOOR · A CARD FOR YOUR AI, A FILE FOR YOUR COMPUTER
In Claude: turn on code execution under Settings › Capabilities, then Customize › Skills › + › Create skill, and upload the zip as it is — START-HERE.md in the box walks you through it, and tells you how to keep the ledger. In ChatGPT, Gemini and the rest: a Project, a GPT or a Gem with the card’s files attached and the short door in the box pasted as its instructions. The words run anywhere an AI reads Markdown; the machines run wherever the host runs Python. Witnessed in Claude only. The host marks →
Take it.
Nº 983 PROPOSED · ONE PAYMENT
Sold as is under the term printed. A card instructs an AI you operate; results depend on your model, your files and your judgement. Not legal, tax, medical or financial advice. The terms →
One payment. The file is yours to keep and keeps working at its edition; new editions issued in the year after you buy reach you by email as replacement files. Tax is added at checkout where it applies. Nothing auto-renews.
ONE PAYMENT — NOTHING RENEWS ITSELF. CHECKOUT IS SHOPIFY’S OWN; YOUR CARD COMES BY EMAIL AFTER IT.