[rorrr]

Most of the concepts you've learned still apply. For web, you will still use HTML, CSS, JS on the front end.

You will have to learn the language and the particular quirks of the framework you choose.

Also keep in mind that Ruby and Python are inherently slow (~20x slower than C#). It's rarely a problem, unless your app does a lot of calculations. Most web apps I've dealt with were DB or I/O bottlenecked.

Start with creating your own project from scratch. And not some "hello world" bullshit, but an actual useful app.