Restructured NixOS system configurations to be more modularized

.config/nix/modules/efi.nix

@@ -0,0 +1,8 @@
+{ config, pkgs, inputs, ... }
+
+{
+  # SystemD-boot is good enough
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+  systemd.tpm2.enable = false;
+}

.config/nix/modules/hypr.nix

@@ -0,0 +1,29 @@
+{ config, pkgs, inputs, ... }
+
+{
+  # Hyprland looks nice so I'm using it
+  programs.hyprland = {
+    enable = true;
+    withUWSM = true;
+    xwayland.enable = true;
+  };
+  environment.sessionVariables.NIXOS_OZONE_WL = "1";
+  xdg.portal.enable = true;
+  xdg.portal.extraPortals = [ pkgs.xdg-desktop-portal-gtk ];
+
+  environment.systemPackages = with pkgs; [
+    # home-manager # For using Nix Home Manager
+    zsh # Default user shell
+    neovim # Terminal text editor
+    wget # coreutil for some script compatibility
+    waybar # Status bar
+    libnotify # Desktop notifications
+    swww # Wallpaper manager
+    brightnessctl # For laptop backlight brightness control
+    grim # screenshot utility
+    slurp # select utility
+    wl-clipboard # xclip alternative
+    rofi-wayland # Dmenu replacement for Wayland
+    ghostty # Terminal emulator
+  ];
+}

.config/nix/modules/laptop.nix

@@ -0,0 +1,36 @@
+{ config, lib, pkgs, inputs, ...}:
+
+{
+  services.libinput.enable = true; # for laptop touchpad
+  # Laptop battery optimizations
+  services.tlp = {
+    enable = true;
+    settings = {
+      CPU_SCALING_GOVERNOR_ON_AC = "performance";
+      CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+
+      CPU_MIN_PERF_ON_AC = 0;
+      CPU_MAX_PERF_ON_AC = 100;
+      CPU_MIN_PERF_ON_BAT = 0;
+      CPU_MAX_PERF_ON_BAT = 20;
+
+      START_CHARGE_THRESH_BAT0 = 40; # 40 and below it starts to charge
+      STOP_CHARGE_THRESH_BAT0 = 80; # 80 and above it stops charging
+    };
+  };
+  services.auto-cpufreq.enable = true;
+  services.auto-cpufreq.settings = {
+    battery = {
+      governor = "powersave";
+      turbo = "never";
+    };
+    charger = {
+      governor = "performance";
+      turbo = "auto";
+    };
+  };
+  powerManagement.powertop.enable = true;
+}