[longrod]

The technical aspect of a startup hardly even matters as long as you get the job done. The first thing to understand before you start a startup is that it doesn't matter how much you love programming. It doesn't matter how beautiful your code is or how much time you spent writing it.

What matters is marketing. You can use Rust or JavaScript or whatever language you want but if you want to be successful, you will spend more time thinking about how to market. Customers don't care what language a product is written in (unless it's a developer facing product). Customers care about getting the job done.

I know the argument here is that Rust offers long term stability but if you are a startup, you will be changing the product so rapidly and adding more and more features, the sheer level of growth will make your product unstable.

I am not against someone using Rust for their new startup IF they are already comfortable in it and know the ins and outs of Rust. Rust is way more complex than JS. The learning curve is considerably steeper. And that matters because if you use a great language and write it poorly, no matter what guarantees it offers, you won't get a better product than if you wrote it in a language you understood well.

So if you are a startup, don't think about the language. Think about what will sell, how you will sell etc. If you can't sell it, it doesn't matter if you wrote it in a particular fancy language. The technical aspects of a product are rarely a sales increasing factor.