initial configuration

modules/system/utils/common.nix

@@ -0,0 +1,10 @@
+{ pkgs, ... }:
+
+{
+  environment.systemPackages = with pkgs; [
+    usbutils
+    neofetch
+    btop
+    git
+  ];
+}

modules/system/utils/fprint.nix

@@ -0,0 +1,33 @@
+{ lib, pkgs, ... }:
+
+{
+  services.fprintd.enable = true;
+
+  security.pam.services.hyprlock = {
+    text = ''
+      auth  sufficient  pam_unix.so try_first_pass likeauth nullok
+      auth  sufficient  ${pkgs.fprintd}/lib/security/pam_fprintd.so
+      auth  include     login
+    '';
+  };
+
+  security.pam.services.greetd = {
+    text = ''
+      account required pam_unix.so # unix (order 10900)
+
+      # Authentication management.
+      auth sufficient pam_unix.so likeauth nullok try_first_pass # unix (order 11600)
+      auth sufficient /nix/store/bz12s6mba297725i9y35p73lvsic8gd3-fprintd-1.94.2/lib/security/pam_fprintd.so # fprintd (order 11400)
+      auth required pam_deny.so # deny (order 12400)
+
+      # Password management.
+      password sufficient pam_unix.so nullok yescrypt # unix (order 10200)
+
+      # Session management.
+      session required pam_env.so conffile=/etc/pam/environment readenv=0 # env (order 10100)
+      session required pam_unix.so # unix (order 10200)
+      session required pam_loginuid.so # loginuid (order 10300)
+      session optional /nix/store/dzp7d4k1d94s1x49p9171mvcsfyxr7bj-systemd-254.6/lib/security/pam_systemd.so # systemd (order 12000)   login
+    '';
+  };
+}

modules/system/utils/garbage-collection.nix

@@ -0,0 +1,11 @@
+{ ... }:
+
+{
+  nix.gc = {
+    automatic = true;
+    dates = "weekly";
+    options = "--delete-older-than 1w";
+  };
+
+  nix.settings.auto-optimise-store = true;
+}

modules/system/utils/laptop.nix

@@ -0,0 +1,18 @@
+{ ... }:
+
+{
+  services.auto-cpufreq.enable = true;
+  services.auto-cpufreq.settings = {
+    battery = {
+      governor = "powersave";
+      turbo = "never";
+    };
+    charger = {
+      governor = "performance";
+      turbo = "auto";
+    };
+  };
+
+  powerManagement.powertop.enable = true;
+}
+