> +
> + (sha256
> + (base32 "0nx0m1bhm4f4v033ngi2m9zq3vppimsmn8kmwqbvyqr4n6gkjmgq"))))
> + (build-system gnu-build-system)

Looks like you can simply use the copy-build-system here, no?

Good call, I've updated the the package to do so. One thing I changed as well is the location for bash-preexec.sh. I saw arch (https://gitlab.archlinux.org/archlinux/packaging/packages/bash-preexec/-/blob/main/PKGBUILD?ref_type=heads#L30) and nix package it under share/ instance of bin/.

Another thing I did was filtering the test files from the package. As they require the bats package to run.

> + (description
> + "preexec and precmd hook functions for Bash 3.1+ in the style of
> Zsh.")

The description should be more descriptive. You can describe the two
functions like they do in the README. Use @command{bash/zsh}. Prefix
with "This package provides".

Updated accordingly. Let me know if there are any other improvements

"I object to doing things that computers can do." — Olin Shivers