p;acifidlog: add further steam optimizations; flake: add nix-gaming

flake.lock

@@ -205,6 +205,24 @@
         "type": "github"
       }
     },
+    "flake-parts_2": {
+      "inputs": {
+        "nixpkgs-lib": "nixpkgs-lib"
+      },
+      "locked": {
+        "lastModified": 1727826117,
+        "narHash": "sha256-K5ZLCyfO/Zj9mPFldf3iwS6oZStJcU4tSpiXTMYaaL0=",
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "rev": "3d04084d54bedc3d6b8b736c70ef449225c361b1",
+        "type": "github"
+      },
+      "original": {
+        "owner": "hercules-ci",
+        "repo": "flake-parts",
+        "type": "github"
+      }
+    },
     "flake-utils": {
       "inputs": {
         "systems": "systems_3"
@@ -431,6 +449,28 @@
         "type": "github"
       }
     },
+    "nix-gaming": {
+      "inputs": {
+        "flake-parts": "flake-parts_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "umu": "umu"
+      },
+      "locked": {
+        "lastModified": 1728783634,
+        "narHash": "sha256-kh4rf1WWFzx1wcHf6lToksRm1Qu/abEYiojs/sCxAYQ=",
+        "owner": "fufexan",
+        "repo": "nix-gaming",
+        "rev": "6accf747c4a29c2ef26ee1a61e9b2466bc9da7b2",
+        "type": "github"
+      },
+      "original": {
+        "owner": "fufexan",
+        "repo": "nix-gaming",
+        "type": "github"
+      }
+    },
     "nix-github-actions": {
       "inputs": {
         "nixpkgs": [
@@ -469,6 +509,18 @@
         "type": "github"
       }
     },
+    "nixpkgs-lib": {
+      "locked": {
+        "lastModified": 1727825735,
+        "narHash": "sha256-0xHYkMkeLVQAMa7gvkddbPqpxph+hDzdu1XdGPJR+Os=",
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
+      },
+      "original": {
+        "type": "tarball",
+        "url": "https://github.com/NixOS/nixpkgs/archive/fb192fec7cc7a4c26d51779e9bab07ce6fa5597a.tar.gz"
+      }
+    },
     "nixpkgs-stable": {
       "locked": {
         "lastModified": 1710695816,
@@ -551,6 +603,7 @@
         "iio-hyprland": "iio-hyprland",
         "jovian": "jovian",
         "lanzaboote": "lanzaboote",
+        "nix-gaming": "nix-gaming",
         "nixpkgs": "nixpkgs",
         "nixpkgs-unstable": "nixpkgs-unstable",
         "nur": "nur",
@@ -725,6 +778,31 @@
         "type": "github"
       }
     },
+    "umu": {
+      "inputs": {
+        "nixpkgs": [
+          "nix-gaming",
+          "nixpkgs"
+        ]
+      },
+      "locked": {
+        "dir": "packaging/nix",
+        "lastModified": 1728772489,
+        "narHash": "sha256-6sHjXNhPrRXIV1au5jlSXHeqn/QHb9wyRt7V0F5p4PA=",
+        "ref": "refs/heads/main",
+        "rev": "475e2b37e34a663b11f8c92b79dd45637a3e848c",
+        "revCount": 770,
+        "submodules": true,
+        "type": "git",
+        "url": "https://github.com/Open-Wine-Components/umu-launcher/?dir=packaging/nix"
+      },
+      "original": {
+        "dir": "packaging/nix",
+        "submodules": true,
+        "type": "git",
+        "url": "https://github.com/Open-Wine-Components/umu-launcher/?dir=packaging/nix"
+      }
+    },
     "wallpapers": {
       "flake": false,
       "locked": {

flake.nix

@@ -35,6 +35,11 @@
       url = "github:nix-community/lanzaboote/v0.4.1";
     };
 
+    nix-gaming = {
+      inputs.nixpkgs.follows = "nixpkgs";
+      url = "github:fufexan/nix-gaming";
+    };
+
     nur.url = "github:nix-community/NUR";
 
     stylix = {

hosts/pacifidlog/default.nix

@@ -15,6 +15,8 @@ in {
     ./stylix.nix
     (import ./../../disko/luks-btrfs-subvolumes.nix {disks = ["/dev/nvme0n1"];})
     self.inputs.jovian.nixosModules.default
+    self.inputs.nix-gaming.nixosModules.pipewireLowLatency
+    self.inputs.nix-gaming.nixosModules.platformOptimizations
     self.nixosModules.common-base
     self.nixosModules.common-locale
     self.nixosModules.common-mauville-share
@@ -53,7 +55,7 @@ in {
     };
   };
 
-  systemd.services.handheld-daemon.path = [hhd-ui pkgs.lsof];
+  hardware.pulseaudio.enable = lib.mkForce false;
 
   jovian = {
     decky-loader = {
@@ -69,6 +71,17 @@ in {
       desktopSession = "hyprland";
       user = "aly";
     };
+
+    steamos = {
+      enableBluetoothConfig = true;
+      enableDefaultCmdlineConfig = false; # Already handled by hardware
+      enableMesaPatches = false; # Doesn't do much, takes a long time to build.
+      enableProductSerialAccess = true;
+      enableSysctlConfig = true; # Scheduling etc tweaks
+      enableVendorRadv = false; # Doesn't do much, takes a long time to build.
+      enableZram = true;
+      useSteamOSConfig = false; # No automatic enabling of stuff in the steamos module
+    };
   };
 
   networking.hostName = "pacifidlog";
@@ -95,21 +108,32 @@ in {
     })
   ];
 
-  services.handheld-daemon = {
-    enable = true;
-    user = "aly";
+  programs.steam.platformOptimizations.enable = true;
 
-    package = with pkgs;
-      handheld-daemon.overrideAttrs (oldAttrs: {
-        propagatedBuildInputs =
-          oldAttrs.propagatedBuildInputs
-          ++ [
-            adjustor
-          ];
-      });
+  services = {
+    handheld-daemon = {
+      enable = true;
+      user = "aly";
+
+      package = with pkgs;
+        handheld-daemon.overrideAttrs (oldAttrs: {
+          propagatedBuildInputs =
+            oldAttrs.propagatedBuildInputs
+            ++ [
+              adjustor
+            ];
+        });
+    };
+
+    pipewire.lowLatency = {
+      enable = true;
+      quantum = 256;
+      rate = 48000;
+    };
   };
 
   system.stateVersion = "24.11";
+  systemd.services.handheld-daemon.path = [hhd-ui pkgs.lsof];
 
   ar = {
     apps = {