Try to find product/ market fit as quickly as possible. My personal rule of thumb is to find 10 paying customers before you can declare product/market fit. The

Try to find product/ market fit as quickly as possible. My personal rule of thumb is to find 10 paying customers before you can declare product/market fit. The stack really doesn't matter and should be least of your concerns at this stage. I used to work for company whose stack was .NET. They got acquired a year back for 1.6 B dollars.