add core configuration

modules/common/common.nix

@@ -0,0 +1,47 @@
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}: let
+  cfg = config.lily.common;
+in {
+  options.lily.common.enable = lib.mkEnableOption "activate common";
+  config = lib.mkIf cfg.enable {
+    programs.gnupg.agent = {
+      enable = true;
+      enableSSHSupport = true;
+    };
+    services.openssh.enable = true;
+    programs.zsh.enable = true;
+    environment.systemPackages = with pkgs; [
+      git
+      neovim
+      toybox
+      util-linux
+      tmux
+      ghostty
+
+      # encryption and filesystem
+      cryptsetup
+      age
+
+      # network tools
+      wget
+      curl
+      # FS-tools
+      unzip
+      gnutar
+      xz
+      bzip2
+      p7zip
+
+      netcat-gnu
+      dnsutils
+      fd
+      file
+      tree
+    ];
+    environment.shells = with pkgs; [zsh];
+  };
+}

modules/common/default.nix

@@ -0,0 +1,17 @@
+{lib, ...}: let
+  # recursively construct attr-set of a directory
+  getDir = dir:
+    lib.mapAttrs (file: type:
+      if type == "directory"
+      then getDir "${dir}/${file}"
+      else type) (
+      builtins.readDir dir
+    );
+  files = dir: lib.collect lib.isString (lib.mapAttrsRecursive (path: type: lib.concatStringsSep "/" path) (getDir dir));
+  validFiles = dir:
+    map (file: ./. + "/${file}") (
+      lib.filter (file: lib.hasSuffix ".nix" file && file != "default.nix") (files dir)
+    );
+in {
+  imports = validFiles ./.;
+}

modules/common/desktop.nix

@@ -0,0 +1,82 @@
+{
+  pkgs,
+  lib,
+  config,
+  flake-self,
+  ...
+}: let
+  cfg = config.lily.desktop;
+in {
+  options.lily.desktop = {
+    enable = lib.mkEnableOption "activate desktop";
+    plasma.enable = lib.mkEnableOption "activate plasma desktop environment";
+    hyprland.enable = lib.mkEnableOption "activate hyprland desktop";
+  };
+
+  config = lib.mkIf cfg.enable {
+    lily = {
+      plasma.enable = cfg.plasma.enable;
+      hyprland.enable = cfg.hyprland.enable;
+    };
+    programs = {
+      dconf.enable = true;
+      kdeconnect.enable = true;
+    };
+    environment.systemPackages = with pkgs; [
+      vulkan-tools
+      jq
+      libqalculate
+      envsubst
+      glib
+      headsetcontrol
+    ];
+    networking = {
+      networkmanager.enable = true;
+    };
+
+    fonts = {
+      enableDefaultPackages = true;
+      packages = with pkgs; [
+        jetbrains-mono
+        noto-fonts-color-emoji
+        garamond-libre
+        helvetica-neue-lt-std
+        # nerd-fonts.jetbrains-mono
+      ];
+      fontDir.enable = true;
+      fontconfig = {
+        defaultFonts = {
+          monospace = ["JetBrainsMono Bold"];
+          serif = ["Garamond Libre"];
+          sansSerif = ["Helvetica Neue LT Std"];
+          emoji = ["Noto Color Emoji"];
+        };
+      };
+    };
+
+    security.rtkit.enable = true;
+    services.pipewire = {
+      enable = true;
+      alsa = {
+        enable = true;
+        support32Bit = true;
+      };
+      audio.enable = true;
+      wireplumber.enable = true;
+      pulse.enable = true;
+      jack.enable = true;
+    };
+
+    # services.printing.enable = true;
+    # services.flatpak.enable = true;
+    services.avahi = {
+      enable = true;
+      nssmdns4 = true;
+      openFirewall = true;
+    };
+    services.udev.packages = [pkgs.headsetcontrol];
+    # environment.sessionVariables = {
+    #   MOZ_DISABLE_RDD_SANDBOX = "1";
+    # };
+  };
+}

modules/common/locale.nix

@@ -0,0 +1,18 @@
+{...}: {
+  # Select internationalisation properties.
+  i18n = {
+    defaultLocale = "en_US.UTF-8";
+    extraLocaleSettings = {
+      LC_ADDRESS = "en_US.UTF-8";
+      LC_IDENTIFICATION = "en_US.UTF-8";
+      LC_MEASUREMENT = "en_US.UTF-8";
+      LC_MONETARY = "en_US.UTF-8";
+      LC_NAME = "en_US.UTF-8";
+      LC_NUMERIC = "en_US.UTF-8";
+      LC_PAPER = "en_US.UTF-8";
+      LC_TELEPHONE = "en_US.UTF-8";
+      LC_TIME = "en_US.UTF-8";
+    };
+  };
+  time.timeZone = "America/Detroit";
+}

modules/common/nixcommon.nix

@@ -0,0 +1,49 @@
+{
+  inputs,
+  outputs,
+  config,
+  pkgs,
+  ...
+}: {
+  nixpkgs.config.allowUnfree = true;
+
+  home-manager = {
+    extraSpecialArgs = {inherit inputs outputs;};
+    useGlobalPkgs = true;
+    useUserPackages = true;
+  };
+
+  nix = {
+    nixPath = ["nixpkgs=${inputs.nixpkgs}"];
+    package = pkgs.nixVersions.stable;
+    optimise.automatic = true;
+    gc = {
+      persistent = true;
+      automatic = true;
+    };
+    extraOptions = ''
+      # If set to true, Nix will fall back to building from source if a binary substitute fails.
+      fallback = true
+      # the timeout (in seconds) for establishing connections in the binary cache substituter.
+      connect-timeout = 10
+      # these log lines are only shown on a failed build
+      log-lines = 25
+    '';
+    settings = {
+      auto-optimise-store = true;
+
+      trusted-users = ["root" "@wheel"];
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+    };
+  };
+  # 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 = "24.11";
+}