NixOS Configuration

This repository contains the NixOS configuration for my systems (flake-based).

Fresh installation (from the NixOS live ISO)

Heads-up: The Disko step will destroy all data on the target disk. Double-check the selected host/target before running it.

1) Connect to Wi-Fi (if needed)

Start wpa_supplicant:

sudo systemctl start wpa_supplicant

Open the interactive client:

wpa_cli

Add and enable your network:

add_network
set_network 0 ssid "<SSID>"
set_network 0 psk "<PSK>"
enable_network 0
quit

You can confirm connectivity with:

ping nixos.org

2) Partition, format, and mount with Disko

Run Disko to destroy, format, and mount according to the flake profile for your host:

sudo nix --extra-experimental-features 'nix-command flakes' run github:nix-community/disko#disko -- \
  --mode destroy,format,mount \
  --flake github:drlucaa/niconfig#<HOST>

Replace <HOST> with the desired host entry from this repo (e.g. laptop, desktop, …). After this step your target filesystem(s) should be mounted under /mnt.

3) Create and activate swap (live environment)

If your layout includes a swap file subvolume at /.swapvol/swapfile, create and enable it now so the install has swap available:

sudo mkswap /mnt/.swapvol/swapfile
sudo swapon /mnt/.swapvol/swapfile

(Optional) verify:

swapon --show

Note: Your flake may already configure the swap file for the installed system. The commands above just activate it in the live installer; on first boot, NixOS will manage it per your configuration.

4) Install NixOS using this flake

sudo nixos-install --flake github:drlucaa/niconfig#<HOST>

When it completes:

sudo reboot

5) First boot

• Log in as root, then set a password for the new user:

  passwd <USERNAME>

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Tips & troubleshooting

• If wpa_cli can’t associate, check SSID/PSK quoting and try:

  select_network 0
  reassociate
  status

• If Disko fails, make sure the <HOST> entry exists in the flake and that the target disk identifier matches what your host module expects (e.g., /dev/nvme0n1 vs /dev/sda).