Solana smart contracts together create a lending system that allows borrowing USD-pegged stablecoin uses as collateral SPL interest-bearing tokens. The system is based on a vault contract, that stores SPL tokens from individual wallets or from smart contracts. It is possible to deposit, withdraw or transfer funds using a vault. Also, it gives a couple of additional features: - generating yield from flash loans and strategies(special small smart contract, that could be written for individual SPL, and assigned to this token in the vault for all depositors). - give special permission for the external whitelisted contract to use depositors` funds from vault storage. The lending contract uses a vault contract to store user collaterals and stablecoins, allows intelligent borrowing and repaying of position, tracks the amount of the available loans, and gives a possibility to liquidate insolvent positions.

Smart Contracts for NFT art platform based on Terra chain. NFT project written on Terra blockchain. Team has been responsible for: - NFT contract - based on cw-721 specification for non-fungible tokens with royalty plan. - NFT marketplace - decentralized platform where people can buy/sell NFTs with or without royalty plan using native or fungible tokens. - NFT English auction - an open-outcry ascending dynamic auction which meets the standards also with or without royalty plan using native or fungible tokens. - Candy machine for NFTs - with the possibility to create several different whitelists. - Royalty-info smart contract - additional smart contract which intended for existing external NFT collections to be able to define their royalty plans and for that plan to be taken into account on marketplace/auction contracts.

Non-custodial multi-currency light wallet, Lightning Network-ready, that features its own Dex. Wallet allows users to send, receive, hold, and exchange funds over Lightning and Connext networks without needing to download full blockchains. This way it allows to perform instant, practically fee-less, and infinitely scalable cross-chain swaps.