nixos-config

My NixOS configuration files

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{
  config,
  lib,
  pkgs,
  ...
}:

{
  nix = {
    # BAD NIX STORE STOP BEING 100GB
    gc = {
      automatic = true;
      dates = "weekly";
      options = "--delete-older-than 7d";
    };
    optimise = {
      automatic = true;
      # Run the optimiser on a different day since running it simultaneously with the gc is buggy
      dates = [ "wednesday" ];
    };
    settings = {
      # Don't trash my $HOME please like come on it's not 2005 anymore
      use-xdg-base-directories = true;
      # Fancy stuff yay
      experimental-features = [
        # The new CLI is so much nicer
        "nix-command"
        # Still have no idea what a "flake" is
        "flakes"
        # Leanify Nix
        "pipe-operators"
      ];
    };
  };

  boot = {
    # I love systemd
    initrd.systemd.enable = true;
    # The default kernel is slightly ancient
    kernelPackages = pkgs.linuxPackages_latest;
    # Instant boot
    loader.timeout = 0;
    # This is what literally every other distro does
    tmp.useTmpfs = true;
  };

  # NixOS is a disk destroyer
  # I NEED ZSTD
  fileSystems."/".options = [ "compress=zstd" ];

  # Download more RAM
  zramSwap.enable = true;

  users.users.a = {
    # Am I really that normal?
    isNormalUser = true;
    extraGroups = [ "wheel" ];
    description = "Anthony Wang";
    # I can't bash you know
    shell = pkgs.fish;
    initialPassword = "change asap";
  };

  # Enable the boring stuff
  programs = {
    fish.enable = true;
    git.enable = true;
  };

  environment.systemPackages = with pkgs; [
    btop
    micro
  ];

  # It sync things I guess
  services.syncthing = {
    enable = true;
    user = "a";
    group = "users";
    openDefaultPorts = true;
    # The default when running Syncthing normally
    configDir = "/home/a/.local/state/syncthing";
  };

  # THE ONLY CORRECT BACKUP METHOD
  services.btrbk.instances.btrbk.settings = {
    timestamp_format = "short";
    snapshot_dir = "/.snapshots";
    snapshot_preserve = "3d 3w 3m *y";
    snapshot_preserve_min = "latest";
  };

  # Faster and what Arch and Fedora use by default
  services.dbus.implementation = "broker";

  # BLAZINGLY FAST MEMORY SAFE
  security.sudo-rs.enable = true;

  # This option defines the first version of NixOS you have installed on this particular machine,
  # and is used to maintain compatibility with application data (e.g. databases) created on older NixOS versions.
  #
  # Most users should NEVER change this value after the initial install, for any reason,
  # even if you've upgraded your system to a new NixOS release.
  #
  # This value does NOT affect the Nixpkgs version your packages and OS are pulled from,
  # so changing it will NOT upgrade your system - see https://nixos.org/manual/nixos/stable/#sec-upgrading for how
  # to actually do that.
  #
  # This value being lower than the current NixOS release does NOT mean your system is
  # out of date, out of support, or vulnerable.
  #
  # Do NOT change this value unless you have manually inspected all the changes it would make to your configuration,
  # and migrated your data accordingly.
  #
  # For more information, see `man configuration.nix` or https://nixos.org/manual/nixos/stable/options#opt-system.stateVersion .
  system.stateVersion = "24.11"; # Did you read the comment?
}