Conquering Steam Deck's Immutable Filesystem with Nix and Home Manager

The Steam Deck's immutable filesystem makes installing packages that persist across system upgrades tricky. This guide shows how to use Nix and Home Manager to elegantly solve this. Nix is a declarative package manager; simply list your desired packages in a configuration file, and it handles the installation. Home Manager simplifies using Nix. The guide details installing Nix and Home Manager on your Steam Deck, managing packages (installation, removal), and offers tips like creating desktop shortcuts and running garbage collection.