Pretectal
Inside WhatsTheDx 01 / A daily product loop
WhatsTheDx
A daily diagnosis challenge that turns a clinical question into an interactive product for professionals and students.
1,100+sign-ups across a global community
Case studies
Expertise you can explore.
I build products around problems I see in the work around me. WhatsTheDx, OptoConnections, and OptoLearn are three examples: a daily challenge, a focused study resource, and a tool for training a team. Here are the decisions behind them and the lessons you can use in your own build.
Product case studies
Useful ideas. Working products.
A daily challenge, a paid study resource, and a training tool for a practice team. Each project shows how a specific need can become a product people can use.
Inside WhatsTheDx 
Inside OptoConnections 02 / A focused paid product
OptoConnections
A focused set of optometry games and study resources that paying students use in their daily routines.
Paid, recurring usea resource in students' daily study routines
Inside OptoLearn 03 / A tool for the team
OptoLearn
A new-hire training platform that organizes instruction, practice, and assessment around optometric workplace tasks.
Learn → practiceeducation organized around workplace tasks
Traction reported by Pretectal's founder, October 2, 2026. The WhatsTheDx figure counts sign-ups; OptoConnections usage is qualitative. Each case study explains the evidence behind it.
The common thread is a useful problem.
My goal is to create efficient products that help the people and teams around me. That starts with understanding a task, choosing a manageable first version, and making the full experience work. AI is part of how I approach building; the product still needs clear decisions, thoughtful review, and feedback from real people.
Each case study pairs the implemented product with the evidence available today and a suggested exercise for your own AI-assisted prototype. Follow the getting-started guide to write a useful brief, choose tools for the task, and check what you build.
How my building workflow has evolved
I started building MVPs with Lovable, Cursor, and Windsurf. Today, I use Claude Code and ChatGPT Astra with skills. That is the shared evolution of my work across these projects; each case study focuses on the product decisions and evidence you can inspect.
Understand the tools and the app stack →