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OperaCode
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11 / 11SharePay is a decentralized bill-splitting app that lets friends, roommates, or collaborators easily share expenses and settle payments using Ethereum or any supported chain. Whether it's splitting dinner, rent, or group subscriptions, SharePay ensures transparency, accountability, and on-chain trust — no middlemen, no missed payments.
Tipverse is a Web3-powered tipping platform that enables users to support creators instantly using Ethereum. Built with React, Tailwind CSS, Wagmi, and RainbowKit, it features seamless wallet integration and a smooth, user-friendly interface. Tipverse is designed to be fast, decentralized, and easily extendable for future token or network support.
A simple Solidity-based contract built with Foundry, for registering students and recording their attendance on-chain, featuring verifiable student records and deployed on COREDAO TestNet.
MultiChainBallot is a Solidity-based decentralized voting system deployed on Celo Sepolia, built with Hardhat Ignition and Foundry for modular deployment, scripting, and multi-network contract testing.
This repo is a simple greeting smart contract, using Foundry and Hardhat as frameworks to write and deploy on the CELO testnet
Modular treasury governance system featuring timelocked execution, proposal management, and security-focused smart contract design.
Solidity-based School Management System powered by a custom ERC20 token (OPERAPAY). Supports student fee payments, staff payroll, level-based pricing, and full on-chain payment tracking.
ERC721 - VisionNFT project built with Solidity, OpenZeppelin, Hardhat (TypeScript), and IPFS (Pinata), deployed across Ethereum and Lisk testnets.
This project transforms the original monolithic EvictionVault contract into a modular architecture, while addressing critical security vulnerabilities and validating core functionality through basic Foundry tests.
A deterministic multi-network ownership smart contract deployment system using Foundry and Hardhat. Enables reproducible deployments, cross-chain execution, and structured on-chain state coordination across EVM networks.
A Solidity-based Multi-Signature Budget Management Contract that allows a fixed group of managers. Built and Tested with HardHat
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