nixos-config/modules/default.nix

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{ config, lib, pkgs, ... }:
{
# Options that affect multiple modules
options.sbruder = {
full = lib.mkOption {
type = lib.types.bool;
description = ''
Whether to build the full system. If disabled, the system closure will
be smaller, but some features will not be available.
'';
default = true;
};
gui.enable = lib.mkEnableOption "gui";
games = {
enable = lib.mkEnableOption "games";
performanceIndex = lib.mkOption {
type = lib.types.int;
description = ''
Arbitrary number specifying how powerful the machine is. To be
replaced by taking into account single- and multi-core CPU and GPU
metrics separately should this system not map to my machines in
practice.
* 2: ~ 2014 ultrabook
* 8: ~ 2016 quad-core workstation with mid-range GPU
'';
default = 1;
};
};
};
# All modules are imported but non-essential modules are activated by
# configuration options
imports = [
../pkgs/modules.nix
./cups.nix
./docker.nix
./fonts.nix
./grub.nix
./gui.nix
./initrd-ssh.nix
./libvirt.nix
./locales.nix
./mailserver.nix
./media-proxy.nix
./mullvad
./network-manager.nix
./nginx-interactive-index
./nginx.nix
./nix.nix
./office.nix
./prometheus/node_exporter.nix
./pubkeys.nix
./pipewire.nix
./restic
./secrets.nix
./ssh.nix
./tools.nix
./udev.nix
./unfree.nix
./wireguard
];
config = lib.mkMerge [
{
# 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
tmux
vim
];
# Clean temporary files on boot
boot.cleanTmpDir = true;
# Set zsh as default shell
programs.zsh.enable = true;
users.defaultUserShell = pkgs.zsh;
environment.etc."zshrc.local".source = "${pkgs.grml-zsh-config}/etc/zsh/zshrc";
# command-not-found does not work without channels
programs.command-not-found.enable = false;
# Hard drive monitoring
services.smartd.enable = lib.mkDefault true;
# Network monitoring
services.vnstat.enable = true;
# Authentication/Encryption agents
programs.gnupg.agent.enable = true;
programs.ssh.startAgent = true;
# When this is set to true (default), routing everything through a
# wireguard tunnel does not work.
networking.firewall.checkReversePath = false;
# Open ports for quick tests
networking.firewall = {
allowedTCPPortRanges = lib.singleton { from = 9990; to = 9999; };
allowedUDPPortRanges = lib.singleton { from = 9990; to = 9999; };
};
# Globally set Lets Encrypt requirements
security.acme = {
acceptTerms = true;
email = "security@sbruder.de";
};
system.activationScripts.diff = ''
[ -L /run/current-system ] && ${pkgs.nixUnstable}/bin/nix \
--experimental-features 'nix-command' \
store \
diff-closures /run/current-system "$systemConfig"
'';
}
(lib.mkIf config.sbruder.full {
services.fwupd.enable = true;
})
(lib.mkIf (!config.sbruder.full) {
# Adapted from nixpkgs/nixos/modules/profiles/minimal.nix
i18n.supportedLocales = map
(locale: locale + "/UTF-8")
((lib.singleton config.i18n.defaultLocale)
++ (lib.attrValues config.i18n.extraLocaleSettings));
documentation.enable = lib.mkDefault false;
})
];
}