Systems We Shipped. Systems Still Running.

> problem

Buying data, airtime, and utility tokens in Nigeria meant unreliable vendors, silent failures, and no proof a payment ever landed.

> approach

A wallet-backed payments platform built and operated in-house: idempotent transaction records, multi-provider fallback for every service, and a receipt for every single request.

> problem

Most Nigerians will not install a 50MB bills app, remember another password, or wait on an OTP just to buy 1GB of data.

> approach

An AI-driven WhatsApp bot that sells data, airtime, cable, electricity tokens and exam PINs inside the chat window, on the same wallet and ledger as the main Vtyield platform.

> problem

Nigerian undergraduates were revising from scattered PDFs, group chats and past questions, with no way to tell whether they had actually covered the curriculum before an exam.

> approach

A structured study platform: faculty-aligned courses broken into modules, lessons sequenced with locked progression, assessments after every module, and honest progress tracking against CGPA goals.

> problem

Solar buyers in Nigeria do not know what to buy. Sizing is guesswork, prices are opaque, and most energy sites are brochures that force every question into a WhatsApp queue.

> approach

A full commerce and advisory platform: a 30+ SKU catalogue with filters, a solar sizing calculator, a structured resource and buyer's-guide library, admin-managed FAQs, order lookup, and an AI assistant that answers product and sizing questions before a human is ever needed.

> problem

Support drowned in repeat questions while the answers already existed across scattered documents.

> approach

A retrieval pipeline over product and policy docs, grounded answers with citations, and clean escalation to human agents.