Daniel Wanja · Nouvelles Solutions, Inc
Four decades of turning complex ideas into software that actually ships. I help organisations of all sizes build scalable, robust products — cloud-native web apps in React, TypeScript and Ruby on Rails, and native macOS tools in Swift.
40+ years building software. Google Cloud and Convex.dev architect and developer. 200+ articles written.
Daniel Wanja · Enterprise Architect & Lead DeveloperReact, TypeScript, Next.js and Tailwind, organised as Nx monorepos that teams can actually maintain.
Swift and SwiftUI for macOS and iPad — from prototype to notarised, shipped app.
Ruby on Rails, Convex.dev and serverless — and cloud architecture on Google Cloud, from data model to deployment.
Each of these apps is an experiment — a deliberate exercise to find the limits of a different AI coding tool (Codex, Claude, Cursor, Bolt) and write up what I learned.
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Create and refine Mermaid diagrams with on-device Apple Intelligence, then edit them on a native Mac canvas. A walkthrough of prompts, large pasted specifications, context handling, and the Swift implementation behind MermaidViewer, updated for 1.10 with CLI and AppleScript support.
