My Nix{OS} configuration files

• nix configuration for my laptops, desktops and more
• nix flake-powered
• guaranteed to be reproducible

This config is not based on any previous available Flake-based Nix{OS} config, instead I choose to develop my own from the available examples and documentation. Some of the repositories that helped me to build this config:

• https://github.com/bqv/nixrc
• https://github.com/colemickens/nixcfg
• https://github.com/hlissner/dotfiles
• https://github.com/Mic92/dotfiles
• https://github.com/nrdxp/nixflk

Also, some extra resources and documentation about Flakes:

• Flakes in NixOS Wiki
• Nix Flakes blog posts from @eldostra
• Nix documentation

Remember: Flakes is experimental, so you shouldn't try this approach until you have some experience in Nix.

This repository also includes my home-manager configuration. It is used to configure home in NixOS systems (using home-manager as a NixOS module) but it should also work in standalone mode.

After following the instructions in manual to prepare the system and partition the disk, run the following process to install:

$ sudo git clone https://github.com/thiagokokada/nix-configs/ /mnt/etc/nixos
$ sudo chown -R 1000:100 /mnt/etc/nixos # optional if you want to edit your config without root
$ nix flake new --template '.#new-host' # if this is a new hardware
$ sudo nixos-install --flake /mnt/etc/nixos#hostname

After installing it succesfully and rebooting, you can uncomment everything and trigger a rebuild.

You can also do remote installations by using --target-host flag in nixos-rebuild (from any machine that already has NixOS installed):

$ nixos-rebuild switch --flake '.#hostname' --target-host root@hostname --use-substitutes

Or if you don't have root access via SSH (keep in kind that the user needs to have sudo permissions instead):

$ nixos-rebuild switch --flake '.#hostname' --target-host user@hostname --use-substitutes --use-remote-sudo

Another option for a few hosts is to use nixos-anywhere. This need to be a host with disko configured. In this case, you can just run:

$ nix run github:numtide/nixos-anywhere -- --flake '.#hostname' root@hostname

Start by installing Nix:

$ sh <(curl -L https://nixos.org/nix/install) --daemon

To build the Home Manager standalone and activate its configuration, run:

$ nix run '.#darwinActivations/<hostname>'

Start by installing Nix:

$ sh <(curl -L https://nixos.org/nix/install) --daemon

To build the Home Manager standalone and activate its configuration, run:

$ nix run '.#homeActivations/<hostname>'

You can build a VM to test NixOS configurations with safety running the command below:

$ nix run '.#nixosVMs/<hostname>'

You can explore all outputs from this configuration by using:

$ nix flake show