Replace lightdm with greetd

This reverts commit 14be05d141.

configuration.nix

@@ -2,9 +2,7 @@
 
 with pkgs;
 
-let hybrid-codec-vaapiIntel = vaapiIntel.override { enableHybridCodec = true; };
-
-in {
+{
   # Kernel configuration
   boot = {
     kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
@@ -31,9 +29,7 @@ in {
     lib.mkDefault config.hardware.enableRedistributableFirmware;
   services.fwupd.enable = true;
 
-  # GPU Hardware acceleration
-  hardware.opengl.extraPackages =
-    [ intel-media-driver hybrid-codec-vaapiIntel vaapiVdpau libvdpau-va-gl ];
+  hardware.opengl.extraPackages = [ vaapiIntel vaapiVdpau libvdpau-va-gl ];
 
   # Bootloader configuration
   boot.loader = {

modules/audio.nix

@@ -5,12 +5,6 @@ with pkgs;
 let
   # HACK Replace youtube-dl with yt-dlp in mopidy-youtube
   mopidy-youtube-yt_dlp = mopidy-youtube.overrideAttrs (old: rec {
-    src = python3Packages.fetchPypi {
-      version = "3.6";
-      pname = "Mopidy-YouTube";
-      sha256 = "sha256-92tJpCu0S79Z1yYaQUnNMxN1rD+8Wr0rtt4GVnldZ9A=";
-    };
-
     propagatedBuildInputs = old.propagatedBuildInputs
       ++ [ python3.pkgs.yt-dlp ];
   });

modules/gui.nix

@@ -14,16 +14,14 @@ let
 
 in {
   # Display manager
-  services.xserver.enable = true;
-  services.xserver.displayManager = {
-    defaultSession = "sway";
-    autoLogin = {
-      enable = true;
-      user = "coolneng";
-    };
-    lightdm = {
-      enable = true;
-      greeter.enable = false;
+  services.greetd = {
+    enable = true;
+    settings = rec {
+      initial_session = {
+        command = "${sway}/bin/sway";
+        user = "coolneng";
+      };
+      default_session = initial_session;
     };
   };
 

modules/power.nix

@@ -5,7 +5,27 @@
   services.auto-cpufreq.enable = true;
 
   # Enable the TLP daemon
-  services.tlp.enable = true;
+  services.tlp = {
+    enable = true;
+    settings = {
+      # Enable audio power saving for Intel HDA, AC97 devices (timeout in secs).
+      # A value of 0 disables, >=1 enables power saving (recommended: 1).
+      # Default: 0 (AC), 1 (BAT)
+      SOUND_POWER_SAVE_ON_AC = 0;
+      SOUND_POWER_SAVE_ON_BAT = 1;
+
+      # Runtime Power Management for PCI(e) bus devices: on=disable, auto=enable.
+      # Default: on (AC), auto (BAT)
+      RUNTIME_PM_ON_AC = "on";
+      RUNTIME_PM_ON_BAT = "auto";
+
+      # Battery feature drivers: 0=disable, 1=enable
+      # Default: 1 (all)
+      NATACPI_ENABLE = 1;
+      TPACPI_ENABLE = 1;
+      TPSMAPI_ENABLE = 1;
+    };
+  };
 
   # Suspend when the battery is critical
   services.udev.extraRules = ''

modules/software.nix

@@ -24,7 +24,7 @@ in {
     inputs.agenix.defaultPackage.x86_64-linux
     git-crypt
     # Browsers
-    firefox
+    firefox-wayland
     ungoogled-chromium
     # LaTeX
     texlive.combined.scheme-full
@@ -49,7 +49,6 @@ in {
     nix-direnv
     gnumake
     gitAndTools.pre-commit
-    delta
     # Rice
     adapta-gtk-theme
     paper-icon-theme