Digital financial tools in East Africa rarely support real-time multi-currency operations or seamless peer-to-peer transfers in a single interface. Users juggle multiple apps for KES, USD, and crypto without unified balance visibility.

Built a high-fidelity mobile banking prototype with Next.js 16 and React 19 featuring real-time balance conversions, multi-currency support, M-Pesa simulation, and FaceID authentication.

A working prototype deployed on Vercel demonstrating real-time currency conversion, P2P transfer flows, and a responsive mobile-first interface.

Contemporary art websites often rely on heavy frameworks or template-based designs that lack interactivity, performance optimization, and unique features. Visitors expect fast load times, responsive galleries, and engaging ways to explore artwork.

Built a zero-dependency static site with semantic HTML, clean CSS variables, and vanilla JavaScript. Integrated C image processing functions compiled to WebAssembly for real-time client-side image filters (grayscale, sepia, invert) inside a lightbox viewer. Converted all images to WebP, added lazy loading, Intersection Observer animations, JSON-LD structured data, and responsive breakpoints from 320px to 4K.

A fully responsive art gallery website with interactive WASM-powered image filters, SEO schema markup, sub-second load times, and a clean codebase. Deployed on GitHub Pages at fidelcedric.github.io/artvision.

Medical supply procurement in Kenya is fragmented — clinics and individuals struggle to find, compare, and pay for supplies online. No e-commerce platform in the space integrates M-Pesa mobile money for seamless checkout.

Built a full-stack e-commerce platform with React 19 frontend and Flask REST backend. Implemented M-Pesa STK Push integration for mobile payments, JWT-based user authentication, product CRUD with image upload, an AI chatbot for product discovery, and a dark mode toggle persisted across sessions via React Context.

A functional medical supplies marketplace with real M-Pesa payment flows, user accounts, and AI-assisted browsing. Deployed on GitHub Pages with Flask backend on PythonAnywhere.

Setting up a consistent, reproducible development environment across machines is time-consuming. I needed a declarative, version-controlled system for my Arch Linux rice that could be cloned and deployed on any fresh install.

Created a bare git repository tracking 233+ configuration files across Hyprland WM, Waybar, Kitty terminal, Rofi launcher, Neovim (LazyVim), Starship prompt, Tmux, Zsh, GTK/QT theming, and Catppuccin Mocha color scheme. Built a custom `ricesync` CLI script for track/commit/push/pull workflows.

A fully reproducible Arch Linux rice that can be deployed on any Arch machine in minutes with consistent Catppuccin Mocha theming across 15+ applications.

Small and medium businesses in Nairobi lack affordable, professional web presence. Most resort to generic templates or expensive agencies. There was a need for a zero-dependency, high-quality landing page that runs instantly without a build step.

Designed and built a single-page HTML site using Tailwind CSS via CDN and vanilla JavaScript. Implemented scroll-triggered Intersection Observer animations, a responsive mobile hamburger menu, a 6-card services grid, image gallery with hover overlays, and a contact section with Google Maps embed. Zero build tools, zero frameworks — just semantic HTML, utility CSS, and native JS.

A fully responsive, production-ready business landing page that loads instantly, works on any device, and can be deployed by opening a single file in a browser.

Most Next.js boilerplates ship insecure by default — no rate limiting, weak auth, no RBAC — and trust free-tier infrastructure blindly, risking the classic 'death spiral' of surprise overage bills. Small devs and studios needed a defensible, revenue-ready starter they could license and deploy in a day.

Built a hyper-constrained Next.js starter with Upstash-backed hard rate limiting, edge RBAC, and PBKDF2 auth. Wired a full commercial flow: Paddle sandbox checkout (Environment.set + Initialize v2), a webhook that mints a license key on transaction.completed, a /success page that gates the private repo download behind that key, and a GitHub Actions deploy to Vercel.

A sold-online product: buyers pay via Paddle card checkout, receive a lifetime license key, and download the full starter tarball through a license-gated API. Verified end-to-end with a real sandbox payment.

Setting up a Zustand store by hand is repetitive boilerplate: defining types, actions, and state slices from scratch. There was no quick, free way to generate a typed Zustand store directly from an existing JSON shape.

Built a client-side Vite + React tool that parses pasted JSON, infers its shape, and generates a fully typed Zustand store with actions — no backend, instant, works offline. Deployed to Vercel and wired as a top-of-funnel tool.

A free live tool at json-to-zustand.vercel.app that turns JSON into a working Zustand store in one click, funneling dev traffic toward the DevSecOps Starter product.

Trading agents that react only to price moves miss compounding decisions. They needed planning — look-ahead search over possible market states — plus realistic accounting of transaction costs instead of idealized fills.

Built a multi-agent trading system where agents coordinate via a shared state, using MCTS look-ahead search to evaluate candidate actions and realistic transaction cost models to penalize overtrading.

An autonomous trading framework that plans several moves ahead and accounts for real frictions, available as an open-source research repo.

Craft businesses like furniture restoration studios need a site that feels artisanal, not templated — conveying craftsmanship while staying fast and lightweight.

Built a focused studio site for atélier.com — where craftsmanship meets contemporary design — covering furniture restoration, interior curation, and bespoke furniture making.

A clean brand-appropriate web presence for the studio, deployed via GitHub Pages.