Programmable payments for groups
Kin Money
Consumer payments prototype exploring programmable money for families and social groups — payment requests, shared funds, allowances and conditional payments.
Proves: End-to-end payment flows, wallet signing, gasless transactions, product engineering and smart-contract integration
Next.js · Smart Contracts · EIP-3009 · ERC-2771 · Neo4j · Envio
01Problem & users
Indian families with someone abroad — a student or worker — need to get money home quickly, and the person receiving it needs rupees they can actually use.
02Product & workflow
The sender pays in dollars to a handle like @mum, as easily as sending a message; the recipient cashes out in rupees to their UPI ID. Also exploring payment requests, shared funds, allowances and conditional payments.
03My contribution
- Founder — product, design and engineering end to end.
- Solo developer, building with Claude as a coding assistant.
04Architecture
Documenting — in progress. Frontend, backend, data, external services and data flow.
05Hardest engineering problem
Documenting — in progress. One real bug, failure mode or constraint and its resolution.
06Trade-offs
Documenting — in progress. What was chosen, what was rejected, and why.
07Validation & results
Documenting — in progress. Tests, user feedback and measured behavior — with method.
08What remains
Documenting — in progress. Known limitations and the next improvement.