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# SPDX-FileCopyrightText: V <v@unfathomable.blue>
# SPDX-FileCopyrightText: edef <edef@unfathomable.blue>
# SPDX-License-Identifier: OSL-3.0
{ lib, pkgs, modulesPath, ... }:
with lib;
let
host = fileContents /etc/hostname;
# commit = commitIdFromGitRepo ./.git;
in {
imports = [
"${modulesPath}/profiles/qemu-guest.nix"
(./hosts + "/${host}")
] ++ mapAttrsToList (module: _: ./modules + "/${module}") (builtins.readDir ./modules);
nixpkgs.overlays = [ (import ./pkgs/overlay.nix) ];
system.stateVersion = "20.09";
### Startup
boot.loader.grub.device = "/dev/sda";
boot.initrd = {
availableKernelModules = [ "ata_piix" "virtio_pci" "xhci_pci" "sd_mod" "sr_mod" ];
luks.devices.rpool = {
device = "/dev/sda3";
allowDiscards = true;
};
network.enable = true;
network.ssh = {
enable = true;
port = 798; # Random unassigned port in the range [1, 1024]
hostKeys = [ "/etc/initrd/ssh_host_ed25519_key" ];
};
};
### Filesystems
# Come on, why isn't this the default?
boot.tmpOnTmpfs = true;
# Required by ZFS, but redundant on a single-pathed system.
networking.hostId = "00000000";
fileSystems = {
"/boot" = {
device = "/dev/sda2";
fsType = "ext2";
};
"/" = {
device = "rpool/root";
fsType = "zfs";
# Extracted from the strace output of `zfs mount -a`
# NOTE: the pool is configured with `zfs set setuid=off rpool`
# TODO(V): come up with a less ugly solution
options = [ "defaults" "atime" "strictatime" "dev" "exec" "rw" "nosuid" "nomand" "zfsutil" ];
};
};
### Networking
networking.useNetworkd = true;
networking.hostName = host;
networking.domain = "unfathomable.blue";
# Misnomer, actually enables DHCP for all unmanaged interfaces.
# It's also incompatible with systemd-networkd.
networking.useDHCP = false;
networking.interfaces.ens3.useDHCP = true;
# This is exceedingly spammy, and not so useful for an Internet-facing machine.
networking.firewall.logRefusedConnections = false;
### Security + privacy
security.sudo.enable = false;
### System services
system.autoUpgrade.enable = true;
services.openssh = {
enable = true;
passwordAuthentication = false;
challengeResponseAuthentication = false;
# TODO(V): Route exclusively over WireGuard, if you dare
};
### Programs + user services
programs.fish.enable = true;
programs.mosh.enable = true;
programs.mtr.enable = true;
### Environment
time.timeZone = "UTC";
i18n = {
defaultLocale = "en_US.UTF-8";
supportedLocales = [ "en_US.UTF-8/UTF-8" ];
extraLocaleSettings.LC_COLLATE = "C";
};
# TODO(V): Switch to https://github.com/NixOS/nixpkgs/pull/101127 once it's been merged and made its way into stable.
users.defaultUserShell = pkgs.fish;
environment.variables.EDITOR = "kak";
environment.systemPackages = with pkgs; [
kakoune
tree
htop
ldns
];
### Users
users.mutableUsers = false;
# This is here so we can `git push` directly to /etc/nixos.
# It should be removed if we stop using that workflow.
users.users.root.packages = [ pkgs.git ];
}
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