Nix Concepts #

This chapter is for teaching Nix and explaining the moving parts behind this repository. Operational pages should link here instead of re-explaining flakes, modules, or Home Manager each time they mention them.

Topic	Use it for
Language basics	Reading Nix expressions and small snippets.
Flakes	Understanding inputs, outputs, and the lock file.
Modules	Understanding how NixOS and Home Manager compose settings.
NixOS and Home Manager	How system and user config fit together in this repo.

The rest of the book should stay practical: what owns a service, how to rebuild it, what to check when it breaks, and which decisions matter.