The SmartContract is at https://github.com/luciotato/usdnear-stable
A Basic functional UI is at https://github.com/luciotato/usdnear-stable-vanilla-webapp
A better, nicer UI is being built at https://github.com/lau-bin/usdnear-stable-ui [WIP]
With this nodejs-cli project, you can use the command line to interact with the smart contract on the NEAR blockchain, and to act as a Liquidator for low-collateral loans for a 10% fee