nixos/common.nix
2024-01-11 18:34:57 +01:00

506 lines
12 KiB
Nix

{ config, pkgs, ... }:
let
impermanence = builtins.fetchTarball "https://github.com/nix-community/impermanence/archive/master.tar.gz";
home-manager = builtins.fetchTarball "https://github.com/nix-community/home-manager/archive/master.tar.gz";
in
{
#
# stuff shared between home machines
#
# get impermanence & home manager working
imports = [
# manage persistent files
"${impermanence}/nixos.nix"
# home manager for per user config
"${home-manager}/nixos"
];
# This value determines the NixOS release from which the default
# settings for stateful data, like file locations and database versions
# on your system were taken. It's perfectly fine and recommended to leave
# this value at the release version of the first install of this system.
# Before changing this value read the documentation for this option
# (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
system.stateVersion = "23.05"; # Did you read the comment?
# use the latest kernel with bcachefs
boot.kernelPackages = pkgs.linuxPackages_latest;
boot.supportedFilesystems = [ "bcachefs" ];
# Use the systemd-boot EFI boot loader.
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
# use a high resolution
boot.loader.systemd-boot.consoleMode = "max";
# we want to be able to do a memtest
boot.loader.systemd-boot.memtest86.enable = true;
# setup the console stuff early
console.earlySetup = true;
# swap to RAM
zramSwap.enable = true;
# keep some stuff persistent
environment.persistence."/nix/persistent" = {
directories = [
# systemd timers
{ directory = "/var/lib/systemd/timers"; user = "root"; group = "root"; mode = "u=rwx,g=rx,o=rx"; }
# clamav database
{ directory = "/var/lib/clamav"; user = "clamav"; group = "clamav"; mode = "u=rwx,g=rx,o=rx"; }
];
};
# enable fast dbus
services.dbus.implementation = "broker";
# allow all firmware
hardware.enableAllFirmware = true;
# ensure firewall is up, allow ssh and http in
networking.firewall.enable = true;
networking.firewall.allowedTCPPorts = [ 22 ];
networking.firewall.logRefusedConnections = false;
# OpenSSH daemon config
services.openssh = {
# enable with public key only auth
enable = true;
settings.PasswordAuthentication = true;
settings.KbdInteractiveAuthentication = true;
settings.PermitRootLogin = "yes";
# only ed25519 keys, make them persistent
hostKeys = [{
path = "/nix/persistent/ssh_host_ed25519_key";
type = "ed25519";
}];
# only safe ciphers & Co.
settings.Ciphers = [ "aes256-gcm@openssh.com" ];
settings.KexAlgorithms = [ "sntrup761x25519-sha512@openssh.com" ];
settings.Macs = [ "hmac-sha2-512-etm@openssh.com" ];
};
# guard the ssh service
services.sshguard.enable = true;
# Set your time zone.
time.timeZone = "Europe/Berlin";
# default locale is English US
i18n.defaultLocale = "en_US.UTF-8";
# use German stuff for sorting/date/....
i18n.extraLocaleSettings = {
LC_ADDRESS = "de_DE.UTF-8";
LC_IDENTIFICATION = "de_DE.UTF-8";
LC_MEASUREMENT = "de_DE.UTF-8";
LC_MONETARY = "de_DE.UTF-8";
LC_NAME = "de_DE.UTF-8";
LC_NUMERIC = "de_DE.UTF-8";
LC_PAPER = "de_DE.UTF-8";
LC_TELEPHONE = "de_DE.UTF-8";
LC_TIME = "de_DE.UTF-8";
};
# allow to have all locales
i18n.supportedLocales = [ "all" ];
# ensure we see the journal on TTY12
services.journald.console = "/dev/tty12";
# keep power consumption and heat in check
powerManagement.enable = true;
powerManagement.cpuFreqGovernor = "powersave";
services.thermald.enable = true;
# allow firmware updates
services.fwupd.enable = true;
# EurKey layout everywhere
services.xserver.layout = "eu";
console.useXkbConfig = true;
# enable the KDE Plasma Desktop Environment
services.xserver.desktopManager.plasma5.enable = true;
# greetd console display manager
services.greetd = {
enable = true;
settings = {
default_session = {
command = "${pkgs.greetd.tuigreet}/bin/tuigreet --time --cmd '${pkgs.plasma-workspace}/libexec/plasma-dbus-run-session-if-needed ${pkgs.plasma-workspace}/bin/startplasma-wayland'";
};
};
};
# enable sound with PipeWire
services.pipewire = {
enable = true;
alsa.enable = true;
jack.enable = true;
pulse.enable = true;
};
# allow realtime
security.rtkit.enable = true;
# package manager config
nix = {
# auto optimize the store
settings.auto-optimise-store = true;
# cleanup the store from time to time
gc = {
automatic = true;
dates = "daily";
options = "--delete-older-than 7d";
};
# avoid that nix hogs all CPUs
settings = {
max-jobs = 1;
cores = 4;
};
# https://github.com/nix-community/nix-direnv
extraOptions = ''
keep-outputs = true
keep-derivations = true
'';
};
# avoid suspend ever to be triggered
systemd.targets.sleep.enable = false;
systemd.targets.suspend.enable = false;
systemd.targets.hibernate.enable = false;
systemd.targets.hybrid-sleep.enable = false;
# let home manager install stuff to /etc/profiles
home-manager.useUserPackages = true;
# use global pkgs
home-manager.useGlobalPkgs = true;
# Allow unfree packages
nixpkgs.config.allowUnfree = true;
# List packages installed in system profile. To search, run:
# $ nix search wget
environment.systemPackages = with pkgs; [
ark
aspellDicts.de
aspellDicts.en
borgbackup
btop
calibre
chromium
clamav
clinfo
config.boot.kernelPackages.perf
efibootmgr
emacs
falkon
fdupes
ffmpeg
file
filelight
gimp
gitFull
glxinfo
go
gptfdisk
heaptrack
hotspot
hugo
hunspellDicts.de_DE
hunspellDicts.en_US
inetutils
kate
kcachegrind
kcalc
keychain
kmail
kompare
konsole
konversation
krita
libjxl
libreoffice
libva-utils
lsof
mc
neochat
nixos-install-tools
nmap
nvme-cli
okteta
okular
p7zip
parted
pciutils
pulseaudio
qmk
ssh-audit
tcl
texlive.combined.scheme-small
tigervnc
tk
tokodon
unrar
unzip
usbutils
valgrind
vlc
vscodium
vulkan-tools
wayland-utils
zsh
zsh-powerlevel10k
];
# run browsers in a sandbox
programs.firejail = {
enable = true;
wrappedBinaries = {
chromium = {
executable = "${pkgs.lib.getBin pkgs.chromium}/bin/chromium";
profile = "${pkgs.firejail}/etc/firejail/chromium.profile";
};
falkon = {
executable = "${pkgs.lib.getBin pkgs.falkon}/bin/falkon";
profile = "${pkgs.firejail}/etc/firejail/falkon.profile";
};
firefox = {
executable = "${pkgs.lib.getBin pkgs.firefox}/bin/firefox";
profile = "${pkgs.firejail}/etc/firejail/firefox.profile";
};
};
};
# chromium needs programs.firefox.enable here and systemPackages entry to have icon and work
programs.chromium.enable = true;
# firefox needs programs.firefox.enable here but no systemPackages entry to have icon and work
programs.firefox.enable = true;
# Flatpak to sandbox Steam, Bottles and Co.
#
# flatpak remote-add --if-not-exists --user flathub https://dl.flathub.org/repo/flathub.flatpakrepo
# flatpak install --user flathub org.signal.Signal
# flatpak install --user flathub com.usebottles.bottles
# flatpak install --user flathub com.valvesoftware.Steam
# flatpak update --user
#
services.flatpak.enable = true;
# allow keyboard configure tools to work
hardware.keyboard.qmk.enable = true;
# add ~/bin to PATH
environment.homeBinInPath = true;
# more fonts for all users
fonts = {
# more fonts
packages = with pkgs; [
# includes nice developer fonts and used by powerlevel10k: https://www.nerdfonts.com/
nerdfonts
# unicode capable fonts
babelstone-han
dejavu_fonts
ipafont
kochi-substitute
noto-fonts
noto-fonts-cjk
noto-fonts-cjk-sans
noto-fonts-cjk-serif
noto-fonts-extra
noto-fonts-emoji
];
# tune fontconfig
fontconfig = {
# better default fonts
defaultFonts = {
monospace = ["IosevkaTerm Nerd Font Mono"];
sansSerif = ["Noto Sans"];
serif = ["Noto Serif"];
};
};
};
# OpenGL
hardware.opengl.enable = true;
hardware.opengl.driSupport = true;
# virus scanner, we only want the updater running
services.clamav.updater.enable = true;
# try to ensure we can use our network LaserJet
services.printing.enable = true;
services.printing.drivers = [ pkgs.hplip ];
# let's get SSD status
services.smartd.enable = true;
# dconf is needed for gtk, see https://nixos.wiki/wiki/KDE
programs.dconf.enable = true;
# ensure cron and Co. can send mails
# programs.msmtp = {
# enable = true;
# setSendmail = true;
# accounts = {
# default = {
# auth = true;
# tls = true;
# from = "christoph@cullmann.io";
# host = "moon.babylon2k.com";
# port = "587";
# user = builtins.readFile "/data/nixos/mailuser.secret";
# passwordeval = "cat /data/nixos/mailpassword.secret";
# };
# };
# defaults = {
# aliases = "/etc/aliases";
# };
# };
environment.etc = {
"aliases" = {
text = ''
root: christoph@cullmann.io
'';
mode = "0644";
};
};
# use ZSH per default with a proper config
users.defaultUserShell = pkgs.zsh;
programs.zsh = {
# zsh wanted
enable = true;
# some env vars I want in all of my shells
shellInit = ''
export MOZ_ENABLE_WAYLAND=1
export POWERLEVEL9K_DISABLE_CONFIGURATION_WIZARD=true
export XDG_DATA_DIRS=$XDG_DATA_DIRS:/usr/share:/var/lib/flatpak/exports/share:$HOME/.local/share/flatpak/exports/share
'';
# great prompt
promptInit = ''
source ${pkgs.zsh-powerlevel10k}/share/zsh-powerlevel10k/powerlevel10k.zsh-theme
if [ -f ~/.p10k.zsh ]; then
source ~/.p10k.zsh;
fi
'';
# aliases
shellAliases = {
ll = "ls -l";
# system build/update/cleanup
update = "sudo nixos-rebuild switch";
upgrade = "sudo nixos-rebuild switch --upgrade";
gc = "sudo nix-collect-garbage --delete-older-than 7d";
verify = "sudo nix --extra-experimental-features nix-command store verify --all";
optimize = "sudo nix --extra-experimental-features nix-command store optimise";
# ssh around in the local network
kuro = "ssh kuro.fritz.box";
kuroroot = "ssh root@kuro.fritz.box";
mini = "ssh mini.fritz.box";
miniroot = "ssh root@mini.fritz.box";
neko = "ssh neko.fritz.box";
nekoroot = "ssh root@neko.fritz.box";
};
};
# enable VirtualBox
virtualisation.virtualbox.host.enable = true;
# configure sudo
security.sudo.execWheelOnly = true;
security.sudo.extraConfig = ''
Defaults lecture = never
'';
###
### per user configuration below
###
# all users and passwords are defined here
users.mutableUsers = false;
#
# administrator
#
users.users.root = {
# init password
hashedPassword = builtins.readFile "/mnt/data/nixos/password.secret";
# use same keys as my main user
# openssh.authorizedKeys.keys = pkgs.lib.splitString "\n" (builtins.readFile "/home/cullmann/.ssh/authorized_keys");
};
home-manager.users.root = {
# initial version
home.stateVersion = "22.11";
# generate the shell config
programs.zsh.enable = true;
};
#
# my main user
#
users.users.cullmann = {
# hard code UID for stability over machines
uid = 1000;
# normal user
isNormalUser = true;
# it's me :P
description = "Christoph Cullmann";
# allow VirtualBox and sudo for my main user
extraGroups = [ "vboxusers" "wheel" ];
# init password
hashedPassword = builtins.readFile "/mnt/data/nixos/password.secret";
};
home-manager.users.cullmann = {
# initial version
home.stateVersion = "22.11";
# generate the shell config
programs.zsh.enable = true;
# enable keychain
programs.keychain = {
enable = true;
keys = [ "id_ed25519" ];
};
# https://github.com/nix-community/nix-direnv
programs.direnv.enable = true;
programs.direnv.nix-direnv.enable = true;
};
}