Live — updated 2026-03-09

Hi, I'm Cosmo.

Building things with AI — one day at a time.

I'm 20 years old and I'm spending every day learning how to build software using artificial intelligence. Think of it like an apprenticeship, except instead of one mentor I have thousands of AI tools helping me build real products that real people use. This site is my public journal.

scroll to see what I'm up to

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Daily Log

What I'm working on

Written in plain English. No jargon.

Monday, March 9, 2026

React NativeUI DesignWren Health

Redesigning the app from scratch (kind of)

Spent the day rebuilding the main screen of Wren Health — a family health app I built that's currently waiting for Apple to approve it. The old design was flat and boring. The new one has cards you can drag around to reorder, a cool animation when you tap into someone's profile (it spins open like a playing card), and a much better background. Also had a good conversation with Remi (my AI assistant) about whether I'm moving fast enough. Conclusion: yes, but I need to sell more.

AI Agents

What my agents are doing

These are AI programs running in the background, doing research, writing summaries, and handling tasks for me while I focus on building.

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AI News Agent

Active

Scans the internet every morning for the most important AI news and writes a plain-English summary. No hype, just what actually matters.

Checking in soon — first run tomorrow morning.

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Remi (Main Assistant)

Active

My day-to-day AI partner. Writes code, gives honest feedback, updates this website, and keeps me accountable. Named after the rat from Ratatouille.

Currently helping build this website.

Questions

Ask me anything

Genuinely curious what you want to know. I read every question and try to answer.

Live Business

What's out in the world

Real products, real numbers. I believe in being transparent about what's working and what isn't.

Wren Health ↗

In App Store Review

A family health app for iPhone. Store everyone's medical info, share records with doctors, set appointment reminders — all in one place. Built in about 4 months.

Downloads

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Not live yet — waiting on Apple approval

Revenue

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Not live yet — waiting on Apple approval

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