Built 5 web apps as a marketer with zero dev background.
The experience broke my mental model of SaaS.
If I can replace tools I was paying for with my own weekend builds, what actually stops everyone from doing the same?
My answer: two things survive.
→ Network effects (you can clone the UI, not the user base)
→ Deep expertise (years of domain context baked into product decisions)
Everything else is becoming a weekend project.
