It's no different other than it's a layer of indirection which allows bash to change in a way that would not be possible if scripts directly referenced /bin/bash or /usr/bin/bash. The only thing you can't change is the /usr/bin/env binary itself but that's not something that changes very much if at all. On my nix box, bash is at /run/current-system/sw/bin/bash and "current-system" is a symlink to a particular build in /nix/store. So /usr/bin/env is creating a layer of indirection so if I rebuild the system, the previous version can be kept around and I can roll back instantly at the boot menu and it will roll everything back to a consistent package set. Now as I say, you could achieve this in other ways eg fs snapshots etc. But to say that the change doesn't give you anything is just very obviously wrong.

And you don't need to worry- it's perfectly obvious how deep your Nix expertise is.

You've just used a personal attack to shout down someone who disagrees in good faith over a distinction you simultaneously describe in your own words as "something you could achieve other ways" (yeah, more than a little bit) referencing an artifact that "is a symlink", "on my nix box".

The only thing I attacked are named instances of regrettable community malfunctions stripped of anything personal to an individual that hurt both current users of Nix and people who might experiment with systems they can reason about, saw an interaction like this, and did something less painful with their day. Because my evident and sincere concern for the future of Nix is framed as stark disagreement over a few particularly sacred cows.

At least on `comp.lang.lisp` you got your middle finger alongside a worthwhile education:

"There are some things in life that you do not do if you want to be a moral being and feel proud of what you have accomplished."

- Erik Naggum