Independent experiment2026
AP3 · Financial astrology
Astro
Double-check the astrology before a directional bet.
- Role
- Design & implementation
- Medium
- Responsive web app
- Prototype
- BuiltRead-only working prototype
DeFi product work by Connor Lee
Role periodAug 2022 – May 2023
Marginfimrgnlend
Making risk visible before the next move.
- Role
- Sole product designer
- Medium
- Web app
- Outcome
- ShippedCore lending & risk UX
mrgnlend, project 2 of 8
Case study Lending & borrowing · Aug 2022 – May 2023
mrgnlend
I led mrgnlend from user research through the shipped lending, borrowing, and risk experience, working with engineering on account states and transaction controls.
Shipped product
Problem
Borrowing against volatile assets required users to understand how each action would change their position and liquidation risk.
Approach
Keep the health factor visible across lending, borrowing, and portfolio flows so users can assess risk before acting.
Outcome & attribution
mrgnlend launched with the core lending, borrowing, and risk experience I designed. My role ended in May 2023, before the points program and later market expansion.
Selected artifacts
Product & process.
Product states, decisions, and the system behind them.
01
The shipped lending system
The product film shows supplying, borrowing, account health, and positions in one responsive surface.
02
One account, one risk picture
Balances, liquidity, and Health Factor stay visible together so users can assess their position before acting.
03
Supply and borrow without changing mental models
Shared market rows let users switch between lending and borrowing while account context stays stable.
04
Risk changed with the input
The LTV control previews risk as an amount changes, before the user confirms.
05
Research before interface
Research with experienced and newer DeFi users established how to prioritize yield, position monitoring, account health, and recovery.
06
The full design process
The original deck documents research, risk modeling, flows, and interface iterations through launch.
07
From model to production language
Wireframe iterations resolved the account summary, market rows, and action layer.
08
A useful product before and after deposit
The empty state teaches the first action; funded accounts retain the same hierarchy.
09
The asset row as a product primitive
Five rounds refined market rows before the pattern expanded across assets.
10
Positioning the product
Launch pages clarify the product promise within the application's visual identity.
11
Explore the Figma
Explore the working prototype, flows, and risk interactions.