Maybe I'll write something in the future
It was not too hard if you are already familiar with Nix. The features supported (and the custom Linux kernel) can be found in surface-linux. For NixOS I used the nix-hardware flake to simplify things.
The worst part was the compilation of the Linux kernel, that took hours on the surface. Eventually, I used the remote nix build feature to compile on a more capable computer.
I use both Julia and Rust, I did shot a few times in the foot with Julia (for instance, getting memory leaks on the GPU). Now, I use Julia (the REPL) when I want to quickly script some code and use Pluto.jl to plot data and teach programming.
I usually use it more to help me write documentation and add comments on some functions. It helps explaining what a function does.
To write code I usually just use it to write simple functions or a template code for me to start from somewhere. I avoid using it with external Libraries as in my experience, it likes to "invent" functions and methods that are not implemented.
He gave an interview where he said he took off the the gloves during that penalty to play mind games on the opponent.