full PC config setup

shifting towards manual symlinks for more complex setup than laptop, allows for GUI settings changes to actually apply, and is much easier than nix-ifying every config

hosts/takamaki/default.nix

@@ -1,11 +1,13 @@
 {
   config,
   pkgs,
+  inputs,
   ...
 }: let
 modules-dir = ../../modules;
 in {
   imports = [
+    inputs.nixos-millennium.nixosModules.default
     ../../global-default.nix
     ./hardware-configuration.nix
     "${modules-dir}/display-managers/sddm.nix"
@@ -18,8 +20,47 @@ in {
     enable = true;
     remotePlay.openFirewall = true;
     dedicatedServer.openFirewall = true;
-    extraCompatPackages = with pkgs; [
-      proton-ge-bin
-    ];
+    extraCompatPackages = [ pkgs.proton-ge-bin ];
+    extraPackages = [ pkgs.hidapi ];
+  };
+
+  programs.dconf.enable = true; # apparently necessary for easyeffects to work in home.nix
+
+  boot.loader.grub = {
+    enable = true;
+    device = "nodev"; # "nodev" is used for UEFI
+    efiSupport = true;
+    useOSProber = true;
+    theme = pkgs.stdenv.mkDerivation {
+      pname = "liquidglass-grub";
+      version = "1.0";
+      src = pkgs.fetchFromGitHub {
+        owner = "Purp1eDuck2008";
+        repo = "Liquid-GRUB";
+        rev = "1c336ff58c952e614713471b0aeceeb5d6f29c12";
+        hash = "sha256-+YYZK6VTA6fi67k+e2F2wVzkVMM7wvg/P7KzxL6R258=";
+      };
+      installPhase = "cp -r LiquidGlass $out";
+    };
+  };
+
+  hardware.i2c.enable = true;
+
+  users.users."grey".extraGroups = [ config.hardware.i2c.group ];
+
+  services.lact.enable = true;
+  hardware.amdgpu.overdrive.enable = true;
+
+  zramSwap = {
+    enable = true;
+    algorithm = "zstd";
+    memoryMax = 17179869184;
+  };
+
+  boot.kernel.sysctl = {
+    "vm.swappiness" = 180;
+    "vm.watermark_boost_factor" = 0;
+    "vm.watermark_scale_factor" = 125;
+    "vm.page-cluster" = 0;
   };
 }