Dotfiles

My NixOS configuration

• Neovim, kitty and zsh
• Sway (mako, waybar, swaylock, rofi)
• Firefox + preinstalled extension with NUR
• Application Profiles for Development workstation, Server and Client (Grafana, Prometheus, Promtail and Loki)

NixOS Installation

1. Download and create NixOS bootable ISO using flashdrive and dd
2. Boot to NixOS
3. Connect Wifi using wpa

export NETWORK_NAME='<SSID>'
export PASSWORD='<REDACTED>'
wpa_passphrase '$NETWORK_NAME' '$PASSWORD' | sudo tee /etc/wpa_supplicant.conf

# Restart wpa
sudo systemctl restart wpa_supplicant.service

4. Partition Disk (Example)

lsblk # check avaliable disk
sudo cfdisk /dev/nvme0n1 # preferred disk

Partition disk to following (Thinkpad T14s)

300MiB EFI System
16GiB Linux Swap
Remaining Linux File System

Format disk

sudo mkfs.fat -F32 /dev/xxx1 # EFI
sudo mkswap /dev/xxx2 # Swap
sudo mkfs.ext4 /dev/xxx3 # Remaining

# Example
sudo mkfs.fat /dev/nvme0n1p1
sudo mkswap /dev/nvme0n1p2
sudo mkfs.ext4 /dev/nvme0n1p3

Mount formatted partition to certain directory

sudo mount /dev/xxx3 /mnt
sudo swapon /dev/xxx2
sudo mkdir -p /mnt/boot
sudo mount /dev/xxx1 /mnt/boot

5. Generate default config

sudo nixos-generate-config --root /mnt # generate default config

6. Modify default config to install minimum working solution (select and modify to your need)

# Add following command to configuration.nix
{
  boot.loader = {
    systemd-boot.enable = false;
    efi = {
      canTouchEfiVariables = true;
    };
    grub = {
      devices = ["nodev"];
      enable = true;
      efiSupport = true;
      version = 2;
    };
  };
  services.openssh.enable = true;
  services.openssh.permitRootLogin = "yes";
  networking.hostName = "canyon"; # Define your hostname.
  networking.networkmanager.enable = true;
  environment.systemPackages = with pkgs; [
    vim # Do not forget to add an editor to edit configuration.nix! The Nano editor is also installed by default.
    wget
    git
    jq
  ];
  users.extraUsers.thanatchaya = {
    isNormalUser = true;
    createHome = true;
    uid = 1000;
    extraGroups = [ "wheel" "networkmanager" ];
  };
  nix = {
    package = pkgs.nixUnstable;
    extraOptions = ''
      experimental-features = nix-command flakes
    '';
  };
}

Then run following command and reboot

nixos-install

Dotfile Installation

connect to WIFI and create password on provisioning machine

nmtui # connect to WIFI

passwd thanatchaya

rsync from avaliable machine or git clone depending on situation

rsync -ah --delete --progress ~/.dotfiles thanatchaya@<destination>:/home/thanatchaya
# git clone https://github.com/thanatchakromsang/dotfiles.git ~/.dotfiles

ssh thanatchaya@<destination>

For initial installation we have to copy hardware-configuration.nix from provisioning machine to dotfiles and have to create new configuration by copying what's avaliable and modify to your liking

mkdir ~/.dotfiles/nixos/machines/canyon/
cp /etc/nixos/hardware-configuration.nix ~/.dotfiles/nixos/machines/canyon/

Then rebuild

sudo nixos-rebuild switch --flake '.'

Import GPG/SSH keys

Upgrade

Update flake.lock and nix install

# cd ~/.dotfiles/nixos

# nix flake update

$ nixos-rebuild switch --flake .