What I Learned Shipping a Spiritual App to 100+ Users and ₹15K Revenue in 3 Months

A solo developer shares lessons from shipping Anahad, a spiritual app built with Flutter and NestJS, which reached 100+ MAUs and ₹15K revenue in 3 months through organic WhatsApp community growth with zero marketing budget. Key takeaways include the critical importance of setting up observability from day one after experiencing undetected backend crashes, recognizing that distribution is harder than engineering, and designing for non-tech-savvy users such as elderly community members.