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{ config, lib, pkgs, ... }:
# airgapped machine, for setting up keys
# github.com/dhess/nixos-yubikey
# github.com/Mic92/dotfiles/blob/master/nixos/images/yubikey-image.nix
let
nixpkgs = builtins.fetchTarball (import ../nixpkgs.nix);
guide = pkgs.stdenv.mkDerivation {
name = "yubikey-guide.2021.1.31.html";
src = pkgs.fetchFromGitHub {
owner = "drduh";
repo = "YubiKey-Guide";
rev = "fe6434577bce964aefd33d5e085d6ac0008e17ce";
sha256 = "1f4sqj2nspv6939p3gj2ma4fnbz12l95kcr3bjzphjdgxkdx42hx";
};
buildInputs = [ pkgs.pandoc ];
installPhase = "pandoc --highlight-style pygments -s --toc README.md -o $out";
};
gpg-conf = pkgs.fetchurl {
url = "https://raw.githubusercontent.com/drduh/config/75ec3f35c6977722d4dba17732d526f704f256ff/gpg.conf";
sha256 = "sha256-LK29P4+ZAvy9ObNGDNBGP/8+MIUY3/Uo4eJtXhwMoE0=";
};
gpg-agent-conf = pkgs.writeText "gpg-agent.conf" ''
pinentry-program ${pkgs.pinentry-curses}/bin/pinentry-curses
'';
in {
isoImage.isoBaseName = "oxygen";
isoImage.edition = "o2";
isoImage.makeEfiBootable = true;
isoImage.makeUsbBootable = true;
users.users.root.initialHashedPassword = "";
documentation.enable = true;
documentation.nixos.enable = true;
# prevent accidentally writing to persistent storage
boot.kernelParams = [ "copytoram" ];
boot.cleanTmpDir = true;
boot.kernel.sysctl = { "kernel.unprivileged_bpf_disabled" = 1; };
boot.plymouth.enable = true;
boot.plymouth.logo = pkgs.fetchurl {
url = "https://www.themoviethemesong.com/wp-content/uploads/2014/04/The-Matrix-Theme-Song-5.jpg";
sha256 = "0smb717ji82pqqzn6rjg10mz4kjr2nfylm60a9q9divj918l2gqf";
};
boot.plymouth.theme = "breeze";
# disable networking
networking.hostName = "oxygen"; # but we still need a hostname
boot.initrd.network.enable = false;
networking.dhcpcd.enable = false;
networking.dhcpcd.allowInterfaces = [];
networking.firewall.enable = true;
networking.useDHCP = false;
networking.useNetworkd = false;
networking.wireless.enable = false;
systemd.network.enable = false;
time.timeZone = "America/New_York";
# ref: https://rzetterberg.github.io/yubikey-gpg-nixos.html
environment.systemPackages = with pkgs; [
bitcoin
ccrypt
cryptsetup
diceware # generate passphrases
ent # entropy
gnupg
(haskell.lib.justStaticExecutables haskellPackages.hopenpgp-tools)
midori
mkpasswd
paperkey # store pgp keys on paper
parted
pcsclite # smartcard middleware
pcsctools
pgpdump
pinentry-curses
pwgen
qrencode
w3m-nographics # for documentation/manual
yubikey-manager
yubikey-personalization
];
services.udev.packages = [ pkgs.yubikey-personalization ];
environment.shellInit = ''
export GPG_TTY="$(tty)"
gpg-connect-agent /bye
'';
environment.interactiveShellInit = ''
export GNUPGHOME=/run/user/$(id -u)/gnupghome
[ -d $GNUPGHOME ] || install -m 0700 -d $GNUPGHOME
cp ${gpg-conf} "$GNUPGHOME/gpg.conf"
cp ${gpg-agent-conf} "$GNUPGHOME/gpg-agent.conf"
echo "\$GNUPGHOME has been setup for you. Generated keys will be in $GNUPGHOME"
'';
nixpkgs.config.allowUnfree = false;
nixpkgs.config.allowBroken = false;
programs.bash.enableCompletion = true;
programs.command-not-found.enable = true;
programs.light.enable = true;
programs.gnupg.agent.enable = true;
programs.gnupg.agent.enableSSHSupport = true;
services.pcscd.enable = true;
services.printing.enable = true;
services.xserver.enable = true;
services.xserver.autorun = true;
services.xserver.layout = "us";
services.xserver.libinput.enable = true;
services.xserver.xkbOptions = "caps:ctrl_modifier";
services.xserver.displayManager.sddm.enable = true;
services.xserver.displayManager.autoLogin.enable = true;
services.xserver.displayManager.autoLogin.user = "root";
services.xserver.displayManager.defaultSession = "xfce";
services.xserver.displayManager.sessionCommands = ''
${pkgs.midori}/bin/midori ${guide} &
${pkgs.xfce.terminal}/bin/xfce4-terminal &
'';
services.xserver.desktopManager.xterm.enable = false;
services.xserver.desktopManager.xfce.enable = true;
# Use the systemd-boot EFI boot loader.
boot.loader.systemd-boot.enable = true;
boot.loader.efi.canTouchEfiVariables = true;
powerManagement.enable = false;
nix.nixPath = [
"nixpkgs=${nixpkgs}"
"nixos-config=/etc/nixos/configuration.nix"
"/nix/var/nix/profiles/per-user/root/channels"
];
nix.useSandbox = true;
nix.buildMachines = [ ];
system.extraSystemBuilderCmds = "ln -sv ${pkgs.path} $out/nixpkgs";
environment.etc.host-nix-channel.source = pkgs.path;
# This value determines the NixOS release with which your system is to be
# compatible, in order to avoid breaking some software such as database
# servers. You should change this only after NixOS release notes say you
# should.
system.stateVersion = "19.03"; # Did you read the comment?
system.autoUpgrade.enable = false;
}
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