Henry Byrne / New York City
18. Solo founder.
Founder and athlete from New York City. I build AI-native apps from scratch.
I'm building Play2Play: the app where athletes post their highlights and watch other athletes' highlights. It started as a problem I hit myself.
Don't take my word for it.
Building in public: I ship and share the work as it happens, not after it is polished. Here is who has already taken it seriously.
product shipped and live
co-founders or employees
person building all of it
Pitched to venture partners
Pitched Play2Play to partners at established venture firms and to experienced startup CEOs, and got pulled into their technical conversations.
VibeCon by Replit
Attended Replit's creative-AI conference and connected with founders and builders working on the same problems.
Apple Developer Program
Enrolled as a registered Apple developer. Built Play2Play in Xcode and installed it on a physical iPhone.
YC and Z Fellows applicant
Applied to Y Combinator and Z Fellows, competitive programs that back young technical founders.
Boston University
Incoming freshman.
Second Team All-American
High School Track and Field.
What I'm building
Flagship
Play2Play
A short-form vertical video app where athletes post their own highlights and watch other athletes' highlights.
Think a TikTok-style feed built specifically for athletic highlights.
Athletes put in the work, clip the best moments, and then those clips die in a camera roll or a group chat. There is no feed built for them. I am an athlete, I hit this myself, so I built the place where you post your highlights and watch everyone else's.
- Vertical highlight feed
- Player and team stats
- Sport and school rankings in a dedicated Rankings tab
- Follow athletes, teams, and sports you care about
- AI Coach
The pattern, not the product
I spot a broken process and ship a tool to fix it. Solo, with AI-assisted development. Play2Play is what that looks like, shipped before I turned 18.
I'm Henry, a founder and athlete in New York City. I compete in track, football, and rugby.
Play2Play came from being an athlete with a camera roll full of clips and nowhere built for them. Highlights sit in one place, stats in another, and no feed puts athletes in front of each other. So I built the thing that does.
I build in public. I go to conferences, cold email people I admire, and ship code almost every day.
I develop solo with AI tools as leverage. One person can move like a small team.
How I work
Idea to shipped
I turn a fuzzy idea into a product people can use.
Full-stack, AI-assisted
Supabase, Vercel, native iOS, web.
Go-to-market, solo
Pitching, outreach, and distribution. I do the whole loop.
Athlete's discipline
Training habits carry straight into shipping habits.
Bet on me early.
Founders, investors, advisors, coaches, and anyone who needs a product built: my inbox is open.
henrybyrne122@gmail.com