Hi, I'm Joel Roman -- "JR" 👋🇵🇷

📍 Miami ↔ Puerto Rico | 🤖 Robot Builder | 🇵🇷 Ex-Google Developer Group Puerto Rico Co-Founder

Vibe-coding Robots and AI-powered developer tools at c speed. After 14+ years shipping native Android, Robots are finally here.

🍭 dayoneapps.com (closed source) – Simple and private apps designed to help you focus on what matters. No subscriptions, no tracking.

Current Projects

• 🔐 SignQuest (code-signing-game) – Mini Web-Game that teaches students on various code signing topics (used in academia)
• ☢️ commits-nuke – Instantly collapse your entire Git history into a single, fresh initial commit.
• ⌨️ commandline-ktx – A Kotlin library for building standardized *nix-style CLI tools with zero boilerplate.
• 🗜️ Tiny Compressor KTX – A modern, Coroutine-powered image compression library for Android.
• 📱 android-puertorico-mvvm - Production-ready Android template with strict separation of concerns, Hilt DI, and Jetpack Compose.
• 🐦 flutter-puertorico-mvvm - High-performance Flutter implementation focused on testability, state management, and scalable logic.
• 🧘 FocusZen App - Distraction-free Pomodoro timer with a daily habit tracker—no subscriptions, no accounts, and no data tracking.
• 💰 BudgetZen App - The simplest way to track your spending. Focus on your daily budget, not complicated charts.

Legacy Work

• 🔐 LoKi – Hassle-free passcode lock implementation for Android activities.
• 🟠 ATH Movil - Android SDK for ATH Movil payments, Puerto Rico only.
• 🇵🇷Puerto Rico Goverment Data API -- Dummy Goverment Data API Data for teachers to build apps.

GitHub Activity

What I'm Doing (mostly)

• Building for the future - Learning and building tools & systems to make Robotics better for everyone
• Rapid prototyping - Full apps in days, not months
• Teaching/Sharing -- Knowleadge sharing at campuses in Miami & Puerto Rico

Latest Blog Posts

• The Return of Ownership: Why the Subscription Era is Finally (Maybe) Fading
• Stop Writing Boilerplate: A Modern, Type-Safe Argument Parser for Kotlin
• Tiny but Mighty: Ship Reliable Downloads on Android with TinyDownloader (Kotlin + Coroutines

Connect

Recognition, Patents & Community Work

• Awarded Patent for the first AI Self-service merchandise request system](https://patents.google.com/patent/US11188964B2/en)
• Northrop Grumman's VP Technology Sector Award holder Built Tech to manage and solve a Zika epidemic in Puerto Rico
• Given talks at some of Puerto Rico's top universities (UPR Ponce, Universidad Ana G. Mendez, etc.) as well as local tech communities via GDG, Microsoft's PRPAss, and others.

Engineering (and overall) Philosophy

"Fail Fast" - I fail fast and build tools to solve my own and my teams problems, then share them with the world. Currently exploring how AI + World Models + Robotics changes everything about Robotics development.