A 17-year-old side project was rebuilt as an AI coach for training academies and now makes about $3,000 MRR
Bold turns coaching video libraries into AI coaches that answer with timestamped citations.
Subject: Bold (Marcel Fahle and Rob Hope)B2B subscription for coaching programs
Case Overview & Background
Marcel Fahle, a German software engineer based in Spain, rebuilt his long-running side project Bold as an AI-native video intelligence platform. Bold makes about $3K MRR from three customers; his consulting practice Sprint Zero makes $10K to $15K a month and funds it.
How AI Is Used
Step-by-Step Process
Coaching businesses make video nobody can find.
Pivoted the old product around AI answers.
Consulting revenue pays for product work.
Customer Acquisition & Distribution
Limitations, Risks & Failure Modes
What may not apply to you, and what could go wrong:
- Self-reported and early: three customers
- Most income is consulting, not AI product
- Revenue share amount still unknown
Key Takeaways
- Consulting can fund an AI product
- Citations build trust in AI answers
- Old projects can be reborn with AI
Sources
Indie Hackers: Building a $20k/mo portfolio and finally going all-in on a 17-year-old product
Note: Interview by James Fleischmann.
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