I too used to obsess over customizing my OS. Now I just install Debian, a handful of programs I use daily and that's it. I can recreate my setup on another machine in 20 minutes.
They talk about the shell as an IDE. My entire desktop is a 14 year experiment in tuning productivity. My ~/bin/ folder has around 100 scripts and maybe 20 are little scripts i wrote in conjunction with i3. Pretty cool how it stacks up over time
The only cool thing about it is that it’s declarative: nix-darwin everything and a fully working and customized machine is up in 10 minutes with one command