Here's your summary from Great founders actually build. (https://www.youtube.com/watch?v=4jVyyL_AX7c) on the Y Combinator channel:

**TLDR:** Great founders are able to build prototypes themselves, red flags for start-up founders include outsourcing development and not prioritizing building the product.

1. Key red flag for start-up founders is not being able to build the product themselves.

2. Outsourcing development or using no-code solutions are seen as red flags.

3. Great startups are built by founders who can build prototypes themselves.

#yc #ycombinator #startups #siliconvalley #tech