nixos-config

Safely update flake.lock in this nixos-config repo with build-first validation, mise run activation, and selective rollback of broken inputs. Use when the user asks to update or refresh flake.lock, upgrade flake inputs, update Nix or Homebrew pins, diagnose breakage after a lockfile refresh, or avoid a yolo nix flake update that leaves the host unbuildable.

Add or update Homebrew brews, casks, and taps declaratively in this nixos-config repo's nix-darwin host configs. Use when the user asks to install a Homebrew formula or cask, add a tap, make a package host-specific or shared/base, or asks where Homebrew packages are declared in `systems/HOSTNAME/darwin-configuration.nix` and `systems/base/darwin-configuration.nix`. Do not use for Nix package or Home Manager module installs unless the requested change is explicitly a Homebrew declaration.