Scripts I wrote that I use all the time

It's weird how the circle of life progresses for a developer or whatever.

- When I was a fresh engineer I used a pretty vanilla shell environment

- When I got a year or two of experience, I wrote tons of scripts and bash aliases and had a 1k+ line .bashrc the same as OP

- Now, as a more tenured engineer (15 years of experience), I basically just want a vanilla shell with zero distractions, aliases or scripts and use native UNIX implementations. If it's more complicated than that, I'll code it in Python or Go.

I think it's more likely to say that this comes from a place of laziness than some enlightened peak. (I say this as someone who does the same, and is lazy).

When I watch the work of coworkers or friends who have gone these rabbit holes of customization I always learn some interesting new tools to use - lately I've added atuin, fzf, and a few others to my linux install

I went through a similar cycle. Going back to simplicity wasn't about laziness for me, it was because i started working across a bunch more systems and didn't want to do my whole custom setup on all of them, especially ephemeral stuff like containers allocated on a cluster for a single job. So rather than using my fancy setup sometimes and fumbling through the defaults at other times, i just got used to operating more efficiently with the defaults.