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01Work

Thirty-one systems, in full.

Every project here has a case study — the constraint that shaped it, the architecture it produced, and the decisions I would defend in a review. Counts are read out of the repositories, and a link only appears if it resolves.
Commerce & marketplaceDeveloper toolingPayments & fintechAI & agentsCivic & infrastructureEducationSecurityProduct & interfaceLogistics & trackingCommunication & real-time

Case studies

01
Social commerce super-app2023 — present

Zudomart

A Go modular monolith for African social commerce — 79 modules across five domains, escrow and three-tier verification, with a Python service for ranking, recommendation and fraud detection.

79
Go modules
5
Bounded domains
13k+
Go source files
2
Runtimes (Go + Python)
  • Go 1.26
  • chi
  • ent + Atlas
  • PostgreSQL
  • Redis
  • Kafka
  • Elasticsearch
  • +6
02
TypeScript application framework2026Open source

Zudojs

A 39-package modular TypeScript framework — DI, lifecycle, config, HTTP, events, CQRS, queues, tenancy and observability, each usable on its own, with the dependency direction enforced by a build-time check.

39
Packages
198k
Lines of TypeScript
5
Enforced tiers
11
Frontend adapters
  • TypeScript
  • Node.js
  • pnpm workspaces
  • Zod
  • Vitest
  • changesets
  • ESM
03
Virtual football platform2026Open source

BetNG

A virtual football platform where every match is simulated once and seen identically on five clients: twelve TypeScript and Python services, integer-kobo money, and fourteen invariants each tied to a named test.

12
Backend services
5
Clients, one match model
187
Gateway routes
14
Invariants, each with a test
  • TypeScript
  • Node.js 24
  • Zudojs
  • Prisma 7
  • Python 3.14
  • FastAPI
  • PostgreSQL 17
  • +9
04
Claim and evidence verification2026Open source

ProofLens

Checks whether the documents you attach support the claim you are making. Rule checks run before the model, every cited passage is validated against the stored page, and the verdict points back to the exact sentence it rests on.

297
Backend tests passing
4
Verdicts, none called true
4
AI providers, one interface
22
API routes
  • Python
  • FastAPI
  • SQLAlchemy 2
  • Alembic
  • PostgreSQL 17
  • Pydantic
  • PyMuPDF
  • +8
05
Power-outage reporting platform2026Open source

PowerWatch

Community-reported electricity status for Nigerian neighbourhoods: an Expo mobile app, a Fastify API and a landing page. A neighbourhood's status follows the majority of distinct people who reported in the last 30 minutes.

74
API endpoints
21
Prisma models
26
Mobile screens
6
Geographic levels
  • TypeScript
  • Fastify 5
  • Prisma 7
  • MySQL
  • Expo
  • React Native
  • MapLibre
  • +7
06
Cooperative savings & payments infrastructure2026

Kolo

Digital infrastructure for Ajo and Esusu savings groups — a double-entry ledger, HMAC-verified Nomba webhooks, and 14 background queues behind 32 repositories.

32
Prisma repositories
18
Controllers
14
Background queues
3
Role dashboards
  • TypeScript
  • Fastify 5
  • Prisma
  • PostgreSQL 15
  • Redis 7
  • BullMQ
  • React 19
  • +4
07
Computer-based testing platform2026Private

Telente CBT

A multi-tenant exam platform — 47 relational models, timed exams, question banks, instant results — with a service-key-isolated Python AI service for question generation.

47
Prisma models
4
Question types
2
Services (TS + Python)
0
Direct client → AI calls
  • TypeScript
  • Fastify
  • Prisma
  • PostgreSQL 16
  • Redis 7
  • Python
  • FastAPI
  • +3

02Also on GitHub

The rest of the shelf.

Fifty-four public repositories — prototypes, client work, tools and things built to understand something. A selection worth opening.

github.com/oyinlola-tech