How I built an app that makes $2,000 in one month (from scratch)

```json { "tldr": "A 20-year-old CS student built a Nordic-winter-themed affirmation app from scratch and reached $2,000+ monthly profit in 60 days by combining product-market fit research, rapid iteration, and paid ads with TikTok and Apple credits.", "shortSummary": "Student developer builds affirmation app targeting Nordic winter depression, launches in 60 days, hits $2K/month revenue through TikTok ads, Apple credits, and constant onboarding optimization.", "sentiment": "positive", "