[endymi0n]

So much this. Most about building a tech startup isn't about engineering at all: https://news.ycombinator.com/item?id=3134322

If you still depend on a job for paying the bills (which means that you don't currently have access to lots of capital), then selling your product BEFORE you have built it is the only option I would personally consider going forward. And if those prospects are just entries on a waiting list. Our product was proven in a cheap 250€ ad test and requested by agencies before we all quit our jobs.

Missing product market fit is the top 1,2 and 3 reason for failing to build a startup.