added stuff

nyx/hosts/epimetheus/system.nix

@@ -0,0 +1,59 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib) mkIf mkForce optionals;
+
+  dev = config.modules.device;
+in {
+  config = {
+    fileSystems = {
+      "/".options = ["compress=zstd" "noatime"];
+      "/home".options = ["compress=zstd"];
+      "/nix".options = ["compress=zstd" "noatime"];
+      "/var/log".options = ["compress=zstd" "noatime"];
+      "/persist".options = ["compress=zstd" "noatime"];
+    };
+
+    hardware = {
+      nvidia = mkIf (builtins.elem dev.gpu ["nvidia" "hybrid-nv"]) {
+        nvidiaPersistenced = mkForce false;
+
+        open = mkForce false;
+
+        prime = {
+          offload.enable = mkForce true;
+          # Bus ID of the Intel GPU. You can find it using lspci, either under 3D or VGA
+          intelBusId = "PCI:0:2:0";
+
+          # Bus ID of the NVIDIA GPU. You can find it using lspci, either under 3D or VGA
+          nvidiaBusId = "PCI:1:0:0";
+        };
+      };
+    };
+
+    boot = {
+      kernelParams =
+        [
+          "nohibernate"
+          # The passive default severely degrades performance.
+          "intel_pstate=active"
+        ]
+        ++ optionals ((dev.cpu == "intel") && (dev.gpu != "hybrid-nv")) [
+          "i915.enable_fbc=1"
+          "i915.enable_psr=2"
+        ];
+
+      kernelModules = [
+        "sdhci" # fix microsd cards
+      ];
+    };
+
+    services.btrfs.autoScrub = {fileSystems = ["/"];};
+
+    home-manager.users.notashelf.systemd.user.startServices = "legacy";
+
+    console.earlySetup = true;
+  };
+}