2nd place, DeFi & Payments · Sui Overflow 2026.
71Labs

Selected work

The products are the proof.

Talise and Maren began as difficult product questions. We carried both through research, product strategy, interface design, and engineering into software people can inspect and use.

How we write the work

Two products. Two hard questions.

Talise and Maren are not case-study decorations. They are the products we ship, and the evidence we leave behind.

Talise asked whether stablecoins could become useful to people who do not want wallet addresses, gas, or seed phrases. The answer is a dollar account on Sui: a name instead of a hash, sponsored fees, cheque links, optional private send, yield on idle USDsui, and a Nigeria cash-out rail. It took 2nd place in DeFi & Payments at Sui Overflow 2026.

Maren asked whether Bitcoin could become spendable without a sale. The answer is an amount-first MUSD borrow on Mezo, payments by @handle, and receipts that only say done when the chain does. The beta is testnet and pre-audit, and we keep that status visible.

The write-ups below are the longer versions: the product questions, the constraints we would not soften, and what is actually live.

Talise product interface

Case 01 · Talise

Make onchain money feel like messaging.

01

The product question

Could stablecoins become useful to people who do not want to understand wallet addresses, gas, seed phrases, or blockchain mechanics?

02

What we built

A dollar account on Sui with human handles, gasless transfers, cheque links, private sends, yield on idle balances, and a Nigeria bank cash-out rail.

03

What changed

The blockchain moved behind the interaction. Sending money became an amount and a name, while receipts and custody stayed available when they mattered.

2nd place

Sui Overflow 2026 · DeFi & Payments

$15,000

Prize

1,416

On-chain transactions

~$9.5k

Ledger volume

Case 02 · Maren

Let Bitcoin become spendable without selling it.

Maren turns a Bitcoin-backed borrowing position into a money app: borrow MUSD, pay a person by handle, and keep every action inspectable.

Borrowing MUSD against Bitcoin in Maren
Sending MUSD to a handle in Maren
01

The product question

Could someone use the value of their Bitcoin without selling the asset or turning a borrowing flow into a trading terminal?

02

What we built

An amount-first MUSD borrowing flow, payments by @handle, address resolution before signing, self-custody, and honest on-chain receipts on Mezo.

03

Current state

The beta exposes the real interaction model and product surfaces while keeping its status explicit. It is product evidence, not a claim of finished scale.

Beta

Product status

Mezo

Bitcoin layer 2

MUSD

Bitcoin-backed dollars

Self-custody

Key model

Writing

The write-ups.

All notes

Build with 71Labs

Your product should leave behind evidence too.

Start with the outcome you need. We will recommend the smallest useful engagement and show you what success should make visible.