The constellation of work

Abdullah Zakariyya

Engineer — Web3 · Security · Commerce

A body of work as a star map. Each star is a project; four constellations, one per discipline. Hover, focus, or open one to read its story.

Web3(7)

Web3
NFTMixer (Go)
A C#/.NET 6 Blazor generative-NFT builder rewritten as a Go 1.26 API + Next.js 16 frontend — parity reached, and the predecessor’s security holes closed.
Go 1.26chiMongoDB (v2 driver)+6
Web3
Settleo
Non-custodial P2P/OTC crypto-settlement platform — a ~24-repo polyrepo of hexagonal TypeScript services around a single-writer TigerBeetle ledger.
TypeScriptNode.js 22gRPC+7
Web3
GKOI Contracts
The Foundry/Solidity contracts behind GKOI — a SeaDrop ERC721A collection with a swappable Creator-Token transfer validator, a CREATE2 factory, and a Conduit router.
SolidityFoundryHardhat+5
Web3
GKOI Platform
The backend for a Web3/NFT platform — the mint-critical auth and Merkle-whitelist trust boundaries carved into small, separately-auditable Express services.
Node.jsTypeScriptExpress 5+7
Web3
Settleo Escrow
The non-custodial trade escrow of Settleo: an immutable Solidity contract that releases funds only on 2-of-3 on-chain approval voting — or a permissionless time-locked auto-refund.
Solidity 0.8.28FoundryOpenZeppelin v5+5
Web3
GKOI Apps
The GKOI frontends — a Next.js 16 admin dashboard, the public mint site, and an NFT gallery — that turn chain operations into an interface a human can drive.
Next.js 16React 19TypeScript+4
Web3
NFTMixer (.NET)
The original generative-NFT builder — C#/.NET 6, Blazor Server, PostgreSQL/EF Core — a mature product whose security foundations motivated the Go rewrite.
C#.NET 6Blazor Server+3

Security
Sentova
Cross-device active-protection endpoint agent — a Go protection service plus a privileged Windows service that enforces only server-signed, verified directives.
Go 1.26go.work workspaceWails+5
Security
Sentova MTD
An anti-spyware / Mobile Threat Defense microservice that matches uploaded iOS/Android forensic artifacts against a STIX 2.1 IOC feed — as an index seek, not a pattern parse.
Go 1.26MongoDBRedis+4

Commerce
Chekka
A Nigerian professional car-inspection platform — a Next.js 16 monolith built on the Managerenta conventions, with a locked-report integrity model and a live inspection feed.
Next.js 16TypeScriptMongoose 9+5
Commerce
Golden Bite
A premium treats/catering business in Abuja delivered as three surfaces in one Next.js 16 app — storefront, ops dashboard, and staff app — and the origin of the "per-operation" arch.
Next.js 16TypeScriptMongoose 9+5
Commerce
Managerenta
A multi-tenant property/rental management SaaS — and the Next.js Model→Service→Route reference architecture (with a real IAM engine) the other commerce apps clone.
Next.js 16TypeScriptMongoose 9+5
Commerce
Adverta
A Nigerian advertising/marketplace platform — one shared Hono API behind a Next.js web app and an Expo mobile app, with a billing-aware campaign model and AWS-style per-request IAM.
TurborepoHono 4Next.js 16+7
Commerce
Mogadget
A single-owner Lagos gadget catalog with no cart — browse, then hand off to a prefilled WhatsApp/Instagram chat, with fire-before-navigate click analytics.
Next.js 16TypeScriptMongoDB / Mongoose 9+5
Commerce
Prechop
A Nigerian campus food pre-order marketplace: dated listings with cutoff times, Paystack split prepay, and atomic Redis slot reservations. Shipped on Next.js + Mongo (a Fastify/Prisma twin exists).
Next.js 16TypeScriptMongoDB / Mongoose 9+6

Tools / Labs
Aisolver
A collaborative task/project platform with built-in AI agents that act on your data — a pnpm monorepo whose ~320-line architecture lint fails the build on any boundary or cycle violation.
React 19Vite 5TypeScript+6
Tools / Labs
Fivestick
A single-page marketing site for an AI-automation consultancy — static content, no backend, one interactive island, full SEO via static Next metadata (a standard server build, not a static export).
Next.js 16TypeScriptTailwind v4 (CSS-first)+2
Tools / Labs
Labs
A small cluster of learning/sandbox repos — a C++23 template exercising the spaceship operator, a TypeScript DSA set, and a Terraform local-provider sandbox.
C++23TypeScriptTerraform+1