Cowri
Rotating savings (Ajo/Esusu), multi-party bill-splitting, and automated Paystack DVA reconciliation.
Informal rotating credit associations (Ajo/Esusu) and shared group expenses suffer from manual book-keeping errors, default risks, and reconciliation drift between bank transfers and platform ledgers.
Built a cryptographic double-entry ledger with automated Paystack Dedicated Virtual Account (DVA) reconciliation. Enforces atomic balance reservations across group cycles with zero double-crediting.
Compiled Rust backend built on GlideAPI and Tokio with PostgreSQL transactional isolation. Fronted by a React 19 single-page application with TanStack Router and Query.
Two-phase atomic debit/credit operations with idempotency keys guarantee zero ledger leakage across ROSCA cycles; automated Paystack webhook signature verification.
Rust and GlideAPI provide sub-millisecond execution and compile-time correctness guarantees for multi-party financial state machines.
Combines cultural rotating savings mechanics with institutional-grade ledger guarantees and zero-human-touch bank account creation.
Pan-African social liquidity and rotating group treasury platform.