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Juhyun Choi's avatar

Juhyun Choi

Solo dev building MeloDNA — an AI that turns your music taste into a personalized song. Shipping in public from South Korea


RecoverFlow

Smart payment retries + dunning emails for Stripe SaaS. Stop losing 9% of MRR to failed payments. $29/mo.

  1. RecoverFlow

    Smart payment retries + automated dunning emails for Stripe SaaS. Indie founders lose 9% of MRR to failed payments — RecoverFlow recovers it for $29/mo.

    Building in public$0/mo(yet pre-launching)

MeloDNA

MeloDNA turns your music taste into a personalized AI anthem. Enter 3-5 favorite artists, and our Translation Engine analyzes genre patterns, energy levels, and mood signatures to compose a 60-second vocal track unique to you. Share your Taste Card and highlight clip on Instagram Stories or TikTok. Free to try, $1.99 to unlock HQ downloads.

  1. MeloDNA

    AI analyzes your favorite artists and composes a unique anthem that sounds like your music taste. Free to try, $1.99 for HQ downloads.

    2026 — present$0/mo

Recent activity

commented on2026-03-13
Why I still haven't launched on Product Hunt at $1K MRR
commented on2026-03-13
a16z says "these startups don't exist yet - it's your time to build." I've been building one.
commented on2026-03-13
The workflow test for finding strong AI ideas
commented on2026-03-12
What happened after my AI contract tool post got 70+ comments
commented on2026-03-12
Honest question: we blog weekly, 0 technical errors, follow every SEO checklist still stuck at DA 12. What are we missing?
commented on2026-03-12
Why I still haven't launched on Product Hunt at $1K MRR
commented on2026-03-11
$300 MRR in 7 days. Here's exactly how I launched PostClaw.
commented on2026-03-10
What happened after my AI contract tool post got 70+ comments
commented on2026-03-10
I got tired of fake signups ruining my SaaS database, so I built a drop-in React component to stop them (Open Source)
commented on2026-03-10
I realized the loudest users aren’t the ones who matter
commented on2026-03-09
I built a way to gift real environmental impact in 30 seconds. Looking for feedback! 🌍
created a post2026-02-21
5 Days, 0 Signups: I'm Shutting Down My SaaS Before Writing a Single Line of Backend Code
commented on2026-02-20
I built a way to gift real environmental impact in 30 seconds. Looking for feedback! 🌍
commented on2026-02-20
Most founders don’t have a product problem. They have a timing problem.
commented on2026-02-20
Bootstrapping a $20k/mo AI portfolio after his VC-backed company failed
commented on2026-02-20
Hitting $10k+/mo by using an agency as both testing ground and distribution
commented on2026-02-20
You don't need more users. You need one who'd be upset if you disappeared.
commented on2026-02-20
I doubled my revenue by stopping marketing for 3 months
commented on2026-02-20
Your SaaS doesn't need a marketing strategy. It needs a distribution habit.
commented on2026-02-20
Reddit was supposed to be free growth. It cost me 4 months and a product instead.

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