Tuesday, December 2, 2025

Lessons on AI from My Experience with Vibecoding a Real SaaS Product

Building Multi-Tenant SaaS in 15 Days: Lessons from the Trenches

After 15 days of intense coding, I dug deep into the challenges of building a production-ready, multi-tenant SaaS with AI as my co-pilot. The experience was far from seamless; here’s what I learned:

  • The Reality of RLS and OAuth: Concepts like Row-Level Security (RLS) and OAuth tokens posed unexpected hurdles. It turned out that presuming everything would work smoothly led to significant oversights.

  • Invisible Failures: The most daunting issues were silent. From environment variable inconsistencies to session context errors, the real world of production didn’t align with theoretical expectations.

  • AI’s Limitations: AI generated code quickly, but failed to ensure system-wide coherence. For every efficient line of code, there was a hidden snag waiting to surface.

Despite these challenges, this 15-day journey underscored the essential role of meticulous documentation and rigorous governance in engineering.

Curious about the intricacies of building SaaS with AI? If this resonates with you, let’s discuss and share insights! #AI #SaaS #TechChallenges #Innovation

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