nixos-config/modules/base.nix

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{ config, lib, pkgs, ... }:
{
# Essential system tools
environment.systemPackages = with pkgs; [
git
git-crypt # used to store secrets in configuration
git-lfs # not so essential, but required to clone config
htop
(neovim.override { vimAlias = true; })
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tmux
];
# Clean temporary files on boot
boot.cleanTmpDir = true;
# Disable firewall
networking.firewall.enable = lib.mkDefault false;
# Set zsh as default shell
programs.zsh.enable = true;
users.defaultUserShell = pkgs.zsh;
# Sane swapping
boot.kernel.sysctl."vm.swapiness" = 10;
# Store logs persistently
services.journald.extraConfig = "Storage = persistent";
# Hard drive monitoring
services.smartd.enable = true;
# Network monitoring
services.vnstat.enable = true;
# Authentication/Encryption agents
programs.gnupg.agent.enable = true;
programs.ssh.startAgent = true;
# NixOS version
system.stateVersion = "20.03";
nixpkgs.config = {
# Explicitly allow unfree packages (rule of thumb: assets ok, code not ok)
allowUnfreePredicate = (
pkg: builtins.elem (lib.getName pkg) [
"corefonts"
"vista-fonts"
]
);
# Add unstable channel
packageOverrides = pkgs: {
unstable = import (builtins.fetchTarball "https://channels.nixos.org/nixos-unstable/nixexprs.tar.xz") {
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config = config.nixpkgs.config;
};
};
};
}