I'm doing this right now. - You need more savings. Everything takes longer, and building the tech is only a small part of building a business. I thought I've h

I'm doing this right now. - You need more savings. Everything takes longer, and building the tech is only a small part of building a business. I thought I've had MVP 90% done when I left my job, but I underestimated just how many mundane time-eating problems there are (technical and non-technical). - If you're going to move to a cheaper place, move before you quit the job. Negotiating is much harder when you're effectively unemployed. - Be very very careful not to overengineer the code before you've validated the product. If you love the tech you could spend infinite amount of time building nice abstraction layers and scalable databases, but the #1 priority is ensuring the business won't die before you even need to scale.