raspberry pi configuration.nix
{ config, pkgs, lib, ... }:
{
# This configuration worked on 09-03-2021 nixos-unstable @ commit 102eb68ceec
# The image used https://hydra.nixos.org/build/134720986
boot = {
kernelPackages = pkgs.linuxPackages_rpi4;
tmpOnTmpfs = true;
initrd.availableKernelModules = [ "usbhid" "usb_storage" ];
# ttyAMA0 is the serial console broken out to the GPIO
kernelParams = [
"8250.nr_uarts=1"
"console=ttyAMA0,115200"
"console=tty1"
# Some gui programs need this
"cma=128M"
];
};
boot.loader.raspberryPi = {
enable = true;
version = 4;
};
boot.loader.grub.enable = false;
boot.loader.generic-extlinux-compatible.enable = true;
# Required for the Wireless firmware
hardware.enableRedistributableFirmware = true;
networking = {
hostName = "nixos-raspi-4"; # Define your hostname.
networkmanager = {
enable = true;
};
};
environment.systemPackages = with pkgs; [
neovim
];
users = {
defaultUserShell = pkgs.zsh;
mutableUsers = false;
users.root = {
password = "apassword";
};
users.anormaluser = {
isNormalUser = true;
password = "apassword";
extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
};
};
environment.variables = {
EDITOR = "nvim";
};
programs.zsh = {
enable = true;
syntaxHighlighting.enable = true;
interactiveShellInit = ''
source ${pkgs.grml-zsh-config}/etc/zsh/zshrc
'';
promptInit = ""; # otherwise it'll override the grml prompt
};
nix = {
autoOptimiseStore = true;
gc = {
automatic = true;
dates = "weekly";
options = "--delete-older-than 30d";
};
# Free up to 1GiB whenever there is less than 100MiB left.
extraOptions = ''
min-free = ${toString (100 * 1024 * 1024)}
max-free = ${toString (1024 * 1024 * 1024)}
'';
};
# Assuming this is installed on top of the disk image.
fileSystems = {
"/" = {
device = "/dev/disk/by-label/NIXOS_SD";
fsType = "ext4";
options = [ "noatime" ];
};
};
nixpkgs.config = {
allowUnfree = true;
};
powerManagement.cpuFreqGovernor = "ondemand";
system.stateVersion = "20.09";
#swapDevices = [ { device = "/swapfile"; size = 3072; } ];
}