Shipping live apps, frontend systems, and release-ready product surfaces.
Interface architecture, product framing, QA automation, deployment, and release polish — the app, the infra, and the story as one integrated system.
Guided Wellness Platform — Discontinued
Former project. Browser-first PWA with account sync, structured health workflows, coaching, nutrition, and scanner surfaces. Development discontinued — skills carried forward.
Market Intelligence Tooling
Market tooling with faster information flow, stronger context, and real execution-adjacent depth. Board, wallet, Dex, room, company surfaces with quote preview, swap build, auth, bookmarks, and social tools.
Desktop System Utility
WPF desktop application built on .NET 10 with custom kernel driver integration. Polished command-center interface with real-time hardware monitoring, admin-level system operations, and a full dark theme with red accent design language.
SaaS Invoice Generator
Freemium invoice generator built with Next.js 16 and Supabase. Create, manage, and export professional invoices as PDF. Stripe subscription billing, Google OAuth, live preview, and dashboard analytics.
Digital Business Card Platform
Digital business cards with NFC tap and QR sharing. Real-time analytics, contact capture, instant updates, custom domains, and Apple/Google Wallet support. Free, Pro ($5/mo), and Teams ($8/user/mo) tiers.
SimDex + SPUF + SwiftBill + TapCard
HTML / CSS / JS / React / Next.js / C# / .NET
Cloudflare Pages + Render
Playwright + Visual QA
WDK / WDM / C Driver
MVVM / PWA / API-first
Available for product, frontend, and release-system work where the interface has to carry real weight.
krueger.dev@outlook.comKrueger is a public dev alias.
GitHub and LinkedIn currently private — happy to share build context and architecture notes.