[allochthon]

I'm an experienced Ruby web developer, and I'm starting to learn Rust. You mentioned Java and Nodejs, but I still wanted to chime in on the topic of languages in web development more generally, and the applicability of Rust to web development.

After tackling the refactoring of a complex Rails app that has a rules processing engine implemented on top of ActiveRecord, the true cost of Ruby's lack of static typing has become apparent to me. It's clear now that you can get a web app up and running quickly in a framework like Rails (as one example of a convenient, low-friction framework). But once you need to turn it inside out and make significant changes to the implementation, you're walking on egg shells and relying on previous devs to have built out good test coverage. A web app written in Rust would be easier to refactor in important ways at this point in the life of the app. It is clear there was a cost to using Ruby, but also that it was deferred.