They're already installable without root. Just put them in ~/.local/bin. Most Rust binaries are portable and only dynamically link libc.
I mean, I get it — I used to locally install vim on machines that only had vi, to make my muscle memory be functional when editing files. But it’s not the same as a core tool just being available by default so you don’t have to ever concern yourself with any alternatives.
https://github.com/sharkdp/fd/releases/download/v8.4.0/fd-mu...