Climbing a frictionless mountain sounds really difficult. ;0)

There's a contradiction there I grant, but by "frictionless" I mean I didn't fight with the environment at all.

I'd contrast that to the Java course where you learn the strange dialect of "single file Java" where you might write a single main() method or write only static methods. If you need to you can write as many classes in a single file, but only one can be public, unless they are inner methods. You probably don't need public methods.

It's a strange enough world and distant from ordinary Java coding, yet kinda fun and helpful for mastering whiteboard interviews.

Off topic to OP. I already use Python. I would love to learn Go or Rust this way. Do you know if Hackerrank or any other sites like it have similar for Go/Rust?

I know the docs of the language and the primary books are excellent, but I am lacking in the motivation department. If it was hacker rank style stuff with mini challenges, I think I might pull myself together better.

what's the python course? link? I can only find challenges in python..