▌
Full-stack engineer building
software across the stack — from architecture
and data models to interfaces, infrastructure,
and production AI systems.
Full-stack content & social platform · v1.0.0
STACK
NestJS · Prisma · React Native · Expo
DEPLOYMENT
Monorepo · CI/CD
SURFACES
Web · Mobile · Admin · API
STATUS
v1.0.0 Released
Vellum is a full-stack publishing and social-content platform with a web reader, mobile app, backend API, and admin console. It handles article composition, short-form video highlights, comments, likes, bookmarks, search, notifications, and moderation — all in one monorepo so the surfaces evolve together.
Business identity & productivity SaaS · v1.0.0
STACK
Next.js · TypeScript · AI
DEPLOYMENT
Vercel
MODULES
Cards · Invoices · Identity
STATUS
v1.0.0 Released
Mvalex Business Suite is an integrated SaaS platform that lets businesses create, manage, and export professional business assets — business cards, invoices, and identity documents — from a single application, with AI-assisted content generation and print-ready exports.
Monorepo content platform · Live
STACK
Next.js · MongoDB · Vercel
DEPLOYMENT
Vercel (www.mcdarsene.com)
MODULES
Console · Landing · Shared DB
STATUS
Live
A monorepo content platform with a Next.js admin console, landing page, and shared database package. Console edits trigger toast notifications, persist to MongoDB Atlas, and publish live to the landing page via a shared content API. Uses Vercel connection pooling for serverless cold-start durability.
PROTOTYPE · FLUTTER · DART · WEATHER API
A Flutter prototype combining live weather data with a world clock. Pulls current conditions and forecasts from a public weather API and displays the time across multiple timezones. Built as an experiment in blending two data sources into one cohesive mobile experience.
A web client starter template with authentication, routing, state management, and API integration pre-configured. Designed to be the foundation for new web applications, reducing setup time from days to minutes. Includes a clean folder structure, environment configuration, and base UI components.
PROTOTYPE · FLUTTER · DART · HEALTH
A COVID-19 awareness and information app prototype. Provides up-to-date statistics, safety guidelines, and vaccine information in an easy-to-navigate mobile interface. Built during the pandemic as a way to make reliable health information accessible.
PROTOTYPE · PYTHON · DATA · AVIATION
A Python prototype that analyzes and visualizes flight route data. It parses airline route datasets, maps origin-destination pairs, and generates insights on route networks, frequency, and connectivity between airports.
The Lab is where I prototype ideas that don't fit a product scope yet — design experiments, upcoming features, templates, and things that broke in interesting ways. Three of the patterns in production started as a lab experiment. Shipping something usable in a weekend is the best engineering education I know.
How I structured a full-stack publishing platform across web, mobile, backend, and admin in a single monorepo — and the type-sharing trick that made it all work.
export interface Article {
id: string;
title: string;
excerpt: string;
body: string;
authorId: string;
category: string;
publishedAt: Date;
readingTime: number;
}How I structured a full-stack publishing platform across web, mobile, backend, and admin in a single monorepo — and the type-sharing trick that made it all work.
export interface Article {
id: string;
title: string;
excerpt: string;
body: string;
authorId: string;
category: string;
publishedAt: Date;
readingTime: number;
}How I integrated LLM-powered copy generation into a business card and invoice SaaS — and the prompt engineering that made output usable without editing.
const prompt = `
You are a business copywriter.
Output ONLY valid JSON: {"tagline": string, "description": string}
Business: {{name}}
Industry: {{industry}}
`;How I integrated LLM-powered copy generation into a business card and invoice SaaS — and the prompt engineering that made output usable without editing.
const prompt = `
You are a business copywriter.
Output ONLY valid JSON: {"tagline": string, "description": string}
Business: {{name}}
Industry: {{industry}}
`;How I migrated the MCDARSENE Platform from static data to MongoDB Atlas on Vercel — and the attachDatabasePool trick that prevents connection leaks on cold starts.
import { attachDatabasePool } from "@vercel/functions";
const client = new MongoClient(uri, { maxIdleTimeMS: 5000 });
attachDatabasePool(client); // cleanup on suspension// GLOBAL · ENGINEERING SINCE 2018 · STILL BUILDING
I'm McDarsene M. Mwale — a full-stack engineer who builds software across the stack, from architecture and data models to interfaces, infrastructure, and production systems. My work spans web and mobile applications, backend platforms, cloud infrastructure, and AI systems.
I care about the details that make software hold up in the real world: clear interfaces, thoughtful user experiences, reproducible builds, observability, security, and sensible infrastructure costs. I'm drawn to the difficult, often invisible parts of engineering because they are usually what separates a working demo from a dependable product.