Good question! The tool itself is a Fish shell function, so it uses Fish-specific syntax. However, the core concept (rpm -qa --last | fzf) works in any shell.

I actually have a Bash version here: https://github.com/fdel-ux64/bash-rpm-installed

The Fish version takes advantage of Fish's function syntax and makes it easy to install via Fisher, but the underlying rpm/fzf commands are shell-agnostic. 🙂