3DCDesign
iOS · Android
Print-shop organizer for makers — printer profiles, jobs, materials, estimates, and reports, kept local rather than in a cloud service.
Software portfolio
Products, platforms, and the decisions behind them
All 19 software projects, from shipped mobile products to browser worlds, native watch games, open-source tools, and work still in development. Each has its own project record and current release status.
Featured Products
Apps, web experiences, games, and tools I've built. Explore all 19 products for screenshots, current release details, and official links.
Your Whey Fitness
iOS · Android
Offline-first workout tracker — sessions, history, stats, and local backup, rebuilt on MAUI and shipped to iOS and Android, with a web workspace for trainers and gyms: Teams, Locations, classes, and waivers.
Adventure Cache
iOS · Android
A map-first geocaching and exploration companion: create adventures, follow clues, log finds, collect rewards, and keep working offline. Shipped to iOS and Android.
Cache Creature
iOS · Android · Web
A local-first creature-card collection built from moments, signals, prompts, and scans, with a public web dashboard and a three-card practice arena.
Rubetris
Web · iOS · Android
Three gem-cutting puzzle games for web, iOS, and Android: fill lines from four walls in Debrix, rotate gem clusters in Rosette, and stack the well in Erikade.
Tattoo Finder
Web · iOS (private testing) · Android
A tattoo discovery and booking platform connecting adults with artists through portfolios, private conversations, offers, and appointments. Available on the web and Android; the iOS app remains in private testing.
Guidlands Watch
Wear OS · watchOS (in review)
A standalone fantasy adventure for your wrist: seeded expeditions, tactical battles, loot, and gear, playable offline. Available on Wear OS; the Apple Watch version is in review.
CachePal: Watch Pet
watchOS (in review) · Wear OS
A native virtual pet for your wrist: hatch a pixel Pal, care for it, explore 14 species, and play Cache Catch. Available on Wear OS; the Apple Watch version is in review.
Cache Pal
Web · PWA
An offline-first virtual-pet world of creature care, discovery, battles, breeding, and minigames, with a home to decorate and a world to explore. Plays in the browser and installs as an app.
City Jumper
Web
A rooftop arcade game for the browser: master eight City Rush districts, take on the shared Daily Rush, explore creator maps, and chase the next clean run. Free to play, with no ads.
Doodle Bluff
Web
A phone-first drawing and bluffing party game where players sketch prompts, invent decoy captions, vote, and reveal the funniest deceptions.
Guidlands
Web
A browser MMORPG built around lands that come and go: explore, fight, trade, and craft while keeping your wanderer’s progress across each new adventure. Playable on phone and desktop, with development continuing.
Wordsracer
Web
Two word games in one place: guess the five-letter word in Arena, solo or racing friends, or find the words hidden in a tray of letters in Word Garden.
Earl's Trains
Web
A family archive website for a lifelong O-gauge layout builder: more than sixty years of layouts, rail outings, photography, and films.
Model Scout
Windows 10/11
A local Windows workbench for finding, previewing, and organizing 3D models: cached galleries, multi-part collections, exact duplicate checks, print-cost estimates, and reviewed file transfers.
Keydial Commander
Linux
Turns the Huion Keydial Mini (K20) into a Stream-Deck-style macro pad on Linux — remap all 18 keys and the dial to shortcuts, chords, macros, app launches, and profile switches.
Cacheboard
Local web app
A private, local-first workbench for running AI coding agents across a solo software portfolio: which account has capacity, what to work on next, and whether a task can be delegated and reviewed safely.
Ruby Moon
Xteink X4
A Moon-themed learning companion for the Xteink X4 e-paper reader, with signed firmware, learning content, and updates confirmed by a grown-up on the device.
Pocket Words
Android
A calm, offline five-letter word game for Android: six guesses, unlimited replay, automatic save and restore, and clear feedback that uses symbols as well as color.
Engineering case studies
The constraints and tradeoffs, in full
These write-ups go beyond the product overview: situation, constraints, decision, tradeoff, outcome, and retrospective, including the production failures and what changed afterward.
Turning one product’s knowledge into answers for product, QA, and developers
Built a Claude Code plugin and skill set at WorkWave that answers product questions at three levels, from documents for product managers and testable detail for QA to working code for developers, all from one body of product knowledge.
- Claude Code
- Plugins
- Skills
Giving a vendor-unsupported keypad a native Linux workflow
Built a Linux driver and local React configuration app for the Huion Keydial Mini K20, remapping all 18 keys and its dial over Bluetooth or USB.
- Python
- Linux evdev/uinput
- React
- WebSocket
Modernizing a live cross-platform app without breaking its identity
Rebuilt Adventure Cache from Xamarin.Forms into a .NET 10 MAUI single project for iOS and Android while preserving its store identity and offline-first field workflows.
- .NET 10
- .NET MAUI
- SQLite
- iOS & Android
Growing a free workout app into a multi-tenant platform for trainers and gyms
Grew Your Whey Fitness from a free workout tracker with no ads into a platform for trainers and gyms, while personal records stay on the phone.
- .NET MAUI
- SQLite
- ASP.NET Core
- iOS & Android
Running four live mobile apps on one shared foundation
Built one shared .NET MAUI base for navigation, dependency injection, offline sync, storage, and theming under four live apps, cutting new-app setup from weeks to days.
- .NET MAUI
- .NET 10
- SQLite
- iOS & Android
Beyond software
Functional design and 3D printing
A design has to work beyond the screen. My Model Train Truss Combo is printed and in use on an O-scale railroad layout. The model library, previews, and original downloads live on the3dcoder.com.
Explore the published designs (external)