Creating Apps Without Code
There is also a lot to learn from their business model of running paid ads to drive people to a 2-hour free training to upsell the premium course. A good sales funnel is a critical for most businesses.
Another link worth looking at is Zeroqode.com. There are many no code clones of popular sites like Udemy, Eventbrite, Kickstarter, Amazon, etc. that you can purchase and quickly implement. Most are less than $200.
Development is no longer a serious barrier to entry and it will only get easier over time. The ability to grow an audience and tell compelling stories is becoming more important than coding skills for many startups.