Founder Playbook
Idea validation
“before writing a single line of code I needed 10 events with an actual date with an actual commitment that they would like to try using out the product Having a commitment to actually use at an event where you have your friends your family your loved ones there we thought that was already a big enough commitment that it was almost proxy to a payment”
Set a commitment metric — refuse to code until prospects pre-commit usage
Pick one specific number that proves real intent — not signups, not interest, but committed usage. For Once it was 10 confirmed event hosts with dates on the calendar who would put their wedding or birthday party on an unbuilt app. That commitment is functionally a pre-payment of trust. Set the number, give yourself a deadline, and refuse to start coding until both are met.
B
Brian Shin
OnceBuilt Once (disposable-camera-style event photo app) with his girlfriend co-founder — bootstrapped to $20-22K MRR in 83 days post-launch with ~10-12K weekly active users and 700+ events booked by month 3.
Starter Story
I Built a $20K/Month App in 83 Days· 9:00