"la mathématique est l’art de donner le même nom à des choses différentes"

Improved Cast ABI encoding developer ergonomics by enforcing strict argument length validation, preventing silent mis-encodings and providing clear error feedback for cast abi-encode and cast calldata.

• Rust
• Cast
• Testing

Contributed UI maintenance and broader platform hardening, from implementing a complete notification system for users and administrators — resilient, concurrent, and scalable — to session-derived authorization, Markdown sanitization, and centralized role-based access control.

• TypeScript
• Next.js
• UI
• Security
• Supabase

Frontend for Burundi, BX Smart Labs' decentralized savings-circle platform. Implemented the group onboarding flow, the member-details integration, and the app drawer that ties the savings features together.

• TypeScript
• Web UI

Backend and Solidity smart contracts for Burundi's decentralized savings circles. Led the contracts architecture refactor and implemented the core savings flows — contributions and social loans.

• TypeScript
• Solidity
• Smart Contracts

The Graph subgraph powering Burundi's analytics. Indexed solidarity-group state, weekly transactions, loans, and global stats from the Burundi smart contracts into a queryable GraphQL schema, alongside a Next.js dashboard.

• TypeScript
• The Graph
• GraphQL
• Indexing