[wycats]

I split my time between Ruby, JavaScript (mostly with TypeScript) and Rust, with occasional Java and devops work. Of those, JavaScript (with TypeScript) is my predominant language at the moment, but the mix changes pretty often.

Skylight's stack is Rust and Ruby for the agent, Rails for the backend, Java for our data processing pipeline (essentially a custom data store) and Ember for virtually the entire front end. The graphs in Skylight are Ember components written in d3.

I still think that Rails is a great choice for most web apps, since (to this day) it provides an extremely productive baseline for building account management and working with third-party integrations, which turn out to be a surprising percentage of the total code (and an even higher percentage of backend code changes) in even an ambitious project like Skylight.

I also think it's reasonable to use something like Java or Rust for any heavy data-crunching your app might do, but I think people over-estimate which aspects of their application are truly performance and efficiency critical.

[igravious]

Interesting. I see, thanks. From your list Ember stands out, was not expecting that. Rails and Ember integration looks painful? Maybe using Rails 5 and API mode is the way to go.