This is absurd. I've worked on very successful SaaS (B2B, not B2C) that dominate their industry, it was started by a bunch of students writing shit in PHP, then

This is absurd. I've worked on very successful SaaS (B2B, not B2C) that dominate their industry, it was started by a bunch of students writing shit in PHP, then got rewritten in Java at some point. That's it. Along the lines it picked more tools and techniques of course, but you don't have to do all that in the first three months.