DOT-Files/Gentoo/gentooamd/home/user/.tldrc/tldr/pages/common/nh-os.md

nh os

Reconfigure or debug a NixOS machine. More information: https://github.com/nix-community/nh#usage.

• Build and switch to a specified NixOS flake configuration:

nh os switch {{path/to/flake}}

• Update all the flake inputs of the specified NixOS flake configuration, build it and make it the boot default:

nh os boot {{path/to/flake}} {{[-u|--update]}}

• Build and activate a specified NixOS flake configuration specialisation:

nh os test {{path/to/flake}} {{[-s|--specialisation]}} {{specialisation}}

• Build a specified NixOS flake configuration host and create a symlink of the result from the Nix store in the current directory:

nh os build-vm {{path/to/flake}} {{[-H|--hostname]}} {{host}}

• Load a specified NixOS flake configuration in Nix REPL (Nix evaluation environment):

nh os repl {{path/to/flake}}

• List all available generations from profile path:

nh os info

• Rollback to a specified generation:

nh os rollback {{[-t|-to]}} {{generation}}