StablePay: Enabling a Multi-Stablecoin Payment Experience

Currently, the StablePay ecosystem only processes payments for Djed Osiris. As the Djed protocol expands to include new variants like Djed Shu, Tefnut (ETH-backed), and Isis (ERC-20-backed), the payment infrastructure must evolve. The goal of this project is to refactor the StablePay widget, merchant dashboard, and demo sites to seamlessly support any Djed variant without hardcoded assumptions. Additionally, this project will introduce support for the Gluon protocol, which entails deriving the essential mathematical formulas required for pre-calculating neutrons and protons. To achieve this, I will develop protocol adapters that interact with abstracted Djed interfaces, allowing different stablecoins to be plugged in via configuration. I will upgrade the merchant dashboard to enable multi-stablecoin management, allowing merchants to set preferred price feeds and monitor per-stablecoin revenue. Additionally, I will build deployment tooling to auto-generate config bundles from on-chain metadata and improve the end-user UX to handle coin selection, oracle status, and fallback logic gracefully. Ultimately, this project will transform StablePay into a highly scalable, agnostic payment gateway. Deliverables will be secured with comprehensive integration testing (using Foundry/Hardhat) and frontend end-to-end testing, alongside detailed documentation for merchants to easily onboard new networks and protocol versions.